european organization for nuclear …...the cern proton-antiproton transfer lines which will be...
TRANSCRIPT
EUROPEAN ORGANIZATION FOR NUCLEAR RESEARCH
SPS/E~~/Spec. 78-16
TECHNICAL SPECIFICATION FOR THE BENDING ~GNETS
FOR THE CERN ANTIPROTON TRANSFER LINES
Geneva July, 1978
- l -
Contents
1. Introduction and scope of the tender
2. List of drawings
3 • List of main parameters
4. List of components supplied by CERN
5. Responsibility of the manufacturer
6. Modifications to the specification
7. Modifications to the specification after delivery of the first magnet
8.
9.
10.
11.
Additional short versions of the magnets
Inspection and acceptance tests
The half-cores, description and tests 10.1. General 10.2. Steel sheet supply 10.3. Insulation of the laminations 10.4. Test of insulation resistance 10.5. Punching of the laminations 10.6. Geometrical tolerances concerned with
the laminations 10.7. 10.8. 10.9. 10.10. 10.11 . 10.12.
Inspection of the punched laminations End plates and angular plates Stacking of the laminations Welding of the stack Finishing of the half-cores Tests to be performed on the half-cores 10.12.1. Filling factor 10.12.2. Length of the half-cores 10.12.3. Straightness of the half-cores 10.12.4. Perpendicularity of the end faces 10.12.5. Other dimensions
10.13. End shims
The excitation winding, description and tests 11.1. General 11.2. Conductor material and dimensions 11.3. Conductor brazings 11.4. Winding of the coils 11.5. Insulation
11.5.1. General 11.5.2. Insulation procedure 11.5.3. Radiation resistance of the
thermosetting resin
1
2
2
3
3
3
4
4
4
4 4 5 5 6 6
7 7 8 9 9
10 11 11 11 11 12 12 12
13 13 13 13 15 15 15 15
16
- ii -
Contents (contin'd)
11.6. Prototype coil 11.6.1. Tests to be done on the prototype coil
11.7. Provisional acceptance tests on the series coils 11.7.1. Geometrical test 11.7.2. Flow and pressure test 11.7.3. Electrical tests
11.7.3.1. Measurement of insulation resistance
11.7.3.2. Ground insulation test 11.7.3.3. Interturn insulation test 11.7.3.4. Electrical resistance
17 17 17 17 17 18
18 18 18 18
12. The completed magnet, description and tests 19 12.1. General 19 12.2. Assembly 19
12.2.1. General 19 12.2.2. Coil into core 19 12.2.3. Assembly of magnets 20
12.3. Tests on the assembled magnetic circuits 20 12.3.1. Longitudinal offset 20 12.3.2. Control of the mating surface clearances 21 12.3.3. Transversal offset 21 12.3.4. Straightness of the yoke 21
12.4. Finishing of the magnets 21 l2.5. Cooling 22 12.6. Electrical connections 22 12.7. Interlocks 23 12.8. Protective covers 23 12.9. Provisional acceptance tests of the completed magnets 23
12.9.1. Leak test 23 12.9.2. Flow test 23 12.9.3. Resistance of the magnet 24 12.9.4. High voltage test 24 12.9.5. Test run 24 12.9.6. position of target holders and base plates 24
12.10. Tests after delivery at CERN 24
13. Miscellaneous ~5 13.1. Technical information to be communicated by the
manufacturer 25 13.2. List of samples to be furnished by the manufacturer
for approval 25 l3.2.1. Steel stamples 25 l3.2.2. Copper samples 25 13.2.3. Insulation samples 26 13.2.4. Brazing samples 26 l3. 2.5. End connec t ions 26 l3.2.6. Samples of thermal switches mounting 26 13.2.7. Sample card 26
- 1 -
1. INTRODUCTION AND SCOPE OF THE TENDER
This specification covers the fabrication of the bending nllignets for
the CERN proton-antiproton transfer lines which will be constructed at the
laboratory of the European Organization for Nuclear Research at Prevessin,
France, near Geneva.
There are two different sizes, shown as types B340 and B190, which
have the same cross-section of the core and the coils but different lengths.
As the magnets are matched to different power supplies, the coils of the
two different types of magnets have different numbers of turns and different
conductor dimensions.
The tenderer is invited to make an offer for the manufacture,
testing and delivery at CERN, Prevessin, France, of complete bending
magnets and spare coils in accordance with the present specification which
will form part of the contract.
The magnets shall be delivered completely assembled and ready to
go into service.
The price shall include all mechanical, electrical and hydraulic
measurements and tests as described in this specification, and any special
tooling needed for the magnet manufacture.
The manufacturer must supply all raw materials and ancillary
components except the items stated under section 4.
CERN will not consider tenders for the supply of the magnetic
circuits only or of the coils only. CERN will, however, consider tenders
from main contractors with a second firm as subcontractor for either the
coils or yoke manufacturing, provided the responsibility for final assembly
and testing remains with the main contractor.
- 2 -
2. LIST OF DRAWINGS
SPS-8033-17.1.0 Lamination
SPS-8033-17.2.0 End plate
SPS-8033-17.3.0 Cross-section
SPS-8033-17.4.2. Angular plate
SPS-803 3-17 . 5 .0 Cores
SPS-8033-l7. 6.0 Coil B190
SPS-8033-l7.7.0 Bl90 View of connections
SPS-8033-17 .8. () Coil ])340
SPS-8033-17.9.0 ])340 View of connections
SPS-8033-17.ll.3, Inspection of lamination
SPS-8033-l7.12.3 End shims
SPS-8033-17.13.3 Jack
3. LIST OF HAIN PARAl1ETERS
])190 B340 Units
Gap height 52 52 mm
Pole width 240 240 mm
Lamination width 894 894 mm
Lamination height 295 295 mm
Core width 920 920 mm
Core height 600 600 mm
Core length 1912 3412 mm Number of coils per magnet 2 2
Number of turns per magnet 192 72
Cooling circuits 12 8
Conductor dimensions 8.0 x13.2 15 .2x20.6 mm
Cooling duct 0 5.1 7.2 mm
Magnet resistance (20oC) 0.20 0.0376 Sl
Nominal current 375 1000 A
Nominal field 1.6 1.6 T
- 3 -
B190 B340 Units
Water flow per magnet 20 36 ,Q,/min
Pr es su re drop 6 6 atm
Temperature rise of cooling water 22 15 °c
Copper weight '0 700 '0 1360 kg
Steel weight '0 5.7 '0 11.9 ton
4. LIST OF CmlPONENTS SUPPLIED BY CERN
CERN will supply, free of charge, the following components
Insulating water collectors, equiped with water filter and water c.oupling terminals,
Thermal switches for inlets (45 0 C)
and outlets(60oC)
Special insulated wire for the wiring of the thermal switches,
Terminal strips for the wiring.
5. RESPONSIBILITY OF THE NANUFACTURER
Before the fabrication of the magnets can start, the manufacturer
shall send two complete sets of construction drawings of the magnets to CERN
for approval. However, approval from CERN does not relieve the liability of
the manufacturer who must accept full responsibility for the adopted design
and fabrication and assembly methods as well as for the components and the
completed magnets to conform to the tolerances, tests and requirements specified
herein. The manufacturer is free to propose alternatives which are better
adapted to his particular production facilities. Such alternatives must be
approved by CERN.
6. MODIFICATIONS TO THE SPECIFICATION
CERN reserves the right to make minor modifications at the time
the contract is negotiated. In particular, the details of the pole width,
the angles, the round-off of the corners, the height and width of the pole
shims, the location and diameter of the hole for both the laminations and end
plate, and the details of the end shims may not be definitive and may be
slightly modified at the time of notification of the contract.
- 4 -
7. MODIFICATIONS TO THE SPECIFICATION AFTER DELIVERY OF THE FIRST MAGNET
After magnetic measurements of the first delivered magnet CERN
will define the final pole profile (taper, height and width of pole
shim, location and diameter of pole hole) for the laminations and end plates
and the final shape of the end shims. The dimensions likely to be modified
are marked with an asterix on the drawings of the lamination and end plate.
Those modifications will be transmitted to the manufacturer by CERN within
4 weeks after delivery of the first magnet.
8. ADDITIONAL SHORT VERSIONS OF THE ~~GNETS
CERN reserves the right to order optionally magnets of different
lengths called B220 & B100. Those magnets will have the same cross-section
as the B190 type (same laminations, end plates, angular plates, same conductor
and number of turns, same cooling circuits, etc), but the iron length and
coil length ",ill be different. The iron length will be 2212 mm for the
B220 type and 1012 mm for the B100 type.
9. INSPECTION AND ACCEPTANCE TESTS
All tests described in this specification must be witnessed by
a CERN inspector. Therefore CERN must be notified at a suitable time before
the tests and the inspector must have free access to the relevant p,arts of
the factory. Reasonable office accomodations and a telephone line must be
provided for. In addition CERN must have free access at any normal time to
the production premises of the main contractor and of his subcontractor.
10. THE HALF-CORES, DESCRIPTION AND TESTS
10.1. GENERAL
Each magnet yoke consists of two identical half-cores. The half
cores are assembled from precision-punched, insulated steel laminations,
stacked between thick end-plates and held together by angular plates welded
on the outside of the stack.
To meet the magnetic field requirements, tight geometrical tole
rances are imposed on the magnetic circuit, especially on the pole profile,
the reference surfaces and the mating surfaces. The magnetic circuit must
be mechanically stable with time. Normal handling, transport, etc., shall
not affect the specified dimensions and tolerances.
- 5 -
10.2. THE STEEL SHEET SUPPLY
The steel sheet to be used for the laminations shall have a nominal
thickness of 1.5 n@ and is subject to the same magnetic, geometrical and
mechanical specifications as contained in the document "Specification of
the steel sheet for the 300 GeV magnet sys tern, Ref. No. WB/I-3960 Lab. II",
and Appendix Ia to the latter document. Copies of these are attached
to the present specification.
The geometrical and mechanical properties of the steel sheet must
be tested by the magnet manufacturer while the magnetic properties will be
tested by CERN, following the procedure laid down in the above-mentioned
document.
The magnetic measurements will be performed on ring samples, prepared
by the manufacturer, each sample consisting of a pile of 10 rings of inner
J:2;\leter 76±0.1 mm and outer diameter 114±0.1 mm. In total 20 samples will be
measured, distributed over the delivery according to size of melts, number
of coils, etc.
The specification of the geometrical and mechanical properties
of the sheets, as agreed between the magnet manufacturer and his steel
supplier must have prior approval of CERN.
The external dimensions of the steel sheet must be chosen by
the magnet manufacturer and must allow a sufficient margin for accurate
punching of the contour and for the removal of undesirable parts of
the sheets, should they exhibit crowning effects.
10.3. INSULATION OF THE LAMINATIONS
The lamination shall be insulated with a continuous thin layer
of heat and radiation-resistant material, or by a suitable surface treatment.
In proposing the type of the insulation and the insulation proce
dure, the following considerations are relevant :
a) Prior to being insulated, the plates must be adequately cleaned
and degreased. The laminations may be insulated before or after
punching, but no permanent deformation must be produced in the
insulating process.
b) The process must not affect the magnetic properties of the lamina
tions, for example, by causing excessive heating. CERN will also
- 6 -
perform magnetic measurements on insulated rIng samples as in
section 5.2. If the magnetic properties do not comply with the
specifications, the insulation will not be accepted.
c) With the exception of small regions within a few millimetres of
the welds, the insulation layer must not be altered when the
angular plates are welded along the external contour of the stack
of punched laminations. In turn, the quality of the welds must
not be altered by the insulation.
d) Short circuits are not permitted other than at the welds, in
order to avoid conducting loops linked with the magnetic flux.
Therefore, the insulation must be continuous, well adherent and
mechanically strong.
e) In order to achieve a high packing factor, the insulation must
be as thin as possible, consistent with the above requirements.
The insulation used must have CERN's approval.
10.4. TEST OF INSULATION RESISTANCE
The insulation resistance must exceed 6 Q per cm2 and per 10 cm of stack
The insulation of the laminations must be measured on stacks of compressed
punched laminations which are assembled prior to the final stacking under a
pressure of 10 kg/cm2 This check must be done once for every 5 half-cores
on one stack of about 20 cm length.
10.5. PUNCHING OF THE LAMINATIONS
The punching procedure needed to obtain the specified geometrical
accuracy, burr and run-off requirements is entirely the responsibility of
the manufacturer but it is suggested that a compound tool be used (die with
a counter plate). The burr must not exceed 0.06 mm and the run-off must be
smaller than 30 microns.
The die must also punch a witness mark. After each sharpening
of the die, the position of the witness mark must be changed.
The dimensions and tolerances of the laminations are shown in
drawing No. SPS-8033-17.l.0. The precision surfaces are the pole profile
and hole, the mating surfaces and the reference surfaces.
- 7 -
10.6. GEOMETRICAL TOLERANCES CONCERNED WITH THE LAHINATIONS
Strict tolerances must be kept along the pole profile and hole,
the mating and reference surfaces.
The coordinate system for the geometrical measurements of the
laminations is given by the axes xx' (straight line determined by the
points P and Q and yy' (straight line perpendicular to xx' and equidistant
from the reference faces C and D).
In addition to those shown in the drawings, the following important
tolerances must be adhered to :
The mating faces HH' and NN' must be parallel to xx' to within
± 0.02 mm/m.
The straight parts of the pole profile must be parallel to xx'
to within ± 0.02 mm/m.
The distance from the xx' axis to the central straight part of
the pole profile must be measured at several points. All
values must fall within 26 ± 0.02 mm. (This in addition to the
tolerance on parallelism which is more stringent).
The centre of the pole hole must be on the yy' axis with a
tolerance of ± 0.02 mm.
The distance between the reference surfaces C and D must be
20 j: 0.02 mm.
The distance from the axis xx' to the straight parts of the
pole shims shall be respected ,,,ith a tolerance of ± 0.02 mm.
The distance between the pole shims shall be respected with a
tolerance of ± 0.05 mm.
The reference face E must be at the nominal distance from the
central straight part of the pole profile with a tolerance of
+ 0 and - 0.05 mm.
10.7. INSPECTION OF 'TIlE PUNCHED LAHINATIONS
Before the series punching of the laminations can start, at least
3 laminations must be measured by the manufacturer in the presence of a CERN
representative and subsequently sent to CERN for checking. Only when the
results of these verifications show that the dimensions are correct and the
tolerances are kept, can the series punching start.
- 8 -
Every 2000th lamination must be separated, marked with an identi
fication number and inspected by the manufacturer for burr and linear dimensions
(on a jig). The last punched lamination before a sharpening of the die
and the first after sharpening of the die must be completely measured (dimen
sions and tolerances) and the run-off verified by the manufacturer. These
laminations must be sent to CERN together with the results. CERN will cross
check these laminations. If these laminations do not satisfy the specified
dimensions and tolerances, all the laminations punched after the last accepted
lamination will be rejected by CERN. The verification of the dimensions and 2 tolerances must be done whilst a pressure of 100 kg/m is applied to the
lamination.
10.B. END PLATES AND ANGULAR PLATES
The stack of punched laminations must be terminated by end plates,
with a thickness of 60 rom.
The contour of the end plates must stay within the nominal contour
of the laminations with a tolerance of 0.1 rom on the pole faces and 1 rom
on the rest of the contour.
The end plates shall be made of low carbon steel having the
following characteristics :
a) The value of the coercive force shall be less than 1.6 A cm
and the spread less than 20%.
-1
b) When subjected to a magnetizing field of 300 A cm- l the induction
shall exceed 2.0 T.
These properties will be measured by CERN on machined rings
(outer diameter: 114 ± .1 rom, inner diameter: 76 ± .1 rom, thickness
The manufacturer must cut out 1 ring for every 50 end plates.
Each end plate has a recess for the location of end shims and drilled and tapped holes for the fixation of these end shims.
The half-cores are assembled by means of angular plates welded
along the outside contour. The angular plates have a number of tapped
15 ± .1 rom) .
and drilled holes and machined plates are welded onto them for lifting and
supporting purposes. The magnetic properties for the material of the
angular plates are not subject to a specification. The choice of the steel
and the mechanical properties is left to the manufacturer.
- 9 -
The angular plates shall be properly bent and adjusted and the
contact faces machined to ensure that they can be placed in good contact
with the laminations all along the stack.
10.9. STACKING OF THE LAMINATIONS
The laminations must be stacked in a rigid frame which confines
them against suitable reference surfaces. In choosing the stacking references
it must be borne in mind that the pole and mating surfaces should be as
straight and smooth as possible.
The required quality of stacking is determined by the need to
meet the tolerances on the assembled circuit.
In order to achieve a high degree of symmetry in the stack, the
laminations shall be placed in the stack such that successive groups of
30 laminations have their witness mark in alternate positions with respect
to the axis of symmetry.
Because of the inevitable thickness variation over the surface
of the laminations, the stack must be shimmed, by means of thin steel sheets
not thicker than 0.5 mm and of different size. Previous experience shows
that good results are obtained by preparing stacks of 20-50 em and shimming
them in advance. At regular intervals during the stacking operation and 2
at its end, the stack shall be compressed with a pressure of at least 10 kg/em.
Care must be taken that the pressure is applied uniformly over
the cross-section of the stack.
Each time the stack is compressed it must be inspected to make
sure that all laminations are 1n intimate contact with the reference surfaces
of the stacking fixture.
The total length of the stack with end plates must be measured
while the stack is kept under pressure and adjusted by compensating laminations.
10.10. WELDING OF THE STACK
Before welding the angular plates to the laminations and end
plates the pressure must be applied and removed several times to the stack
and the stack must then be left to settle under maximum pressure for
several hours.
- 10 -
During welding, the angular plates must be kept in contact with
the laminations all along the stack by means of suitable pressure fixtures.
The welding procedure must be carefully established and executed
in order to avoid distortion of the core due to thermal stresses.
The welding shall take place while the stack is kept under
adequate pressure. After welding,the angular plates must provide a suffi
cient compression on the stack to guarantee the mechanical stability of
the core.
It will be necessary to weld at several places simultaneously
and to establish a suitable sequence of welding. This is however, the
responsibility of the manufacturer.
The straightness of the reference surfaces on top of the lamina
tions and the straightness and parallelism of the mating surfaces and of
the pole face must be measured before, during and after welding by suitabl~
placed micrometers or electronic feeler gauges.
In order to achieve the specified tolerances of the finished cores
it may be necessary to correct the deformations introduced by welding.
The tenderer is invited to state the procedures he proposes to use for
correcting any such deformations.
The quality of the welds must be such that the magnets can be
handled and transported safely and that normal handling of the magnets
does not affect their dimensions.
10.11. FINISHING OF THE HALF-CORES
The half-core must be degreased and any scale and oxide removed.
After the mechanical measurements on the half-cores as specified
in section 10.12, they shall be painted with at leaot 1 coat of primer and
2 finishing coats of an epoxy paint of colour and quality to be selected in
agreement with CERN. The coil window must be coated only with a primer.
The mating and reference surfaces must not be painted but be
protected by a removable tape. Each half-core must be marked with a serial
number.
- 11 -
10.12. TESTS TO BE PERFOlU1ED ON THE HALF-CORES
The half-cores will be submitted to the tests as described below
1n the presence of a CERN representative. The results of the measurements
must be recorded together with the serial number of the half-core. The
test reports will be the basis for provisional acceptance or rejection of
the half-core. CERN will reject any core not satisfying the following tests.
10.12.1. Filling factor
The filling factor is here defined as the ratio of the weight
of the finished half-core to the weight of a massive half~core having the
same volume and made of a material having the same density as the laminations.
The nominal filling factor will be measured on the first half-core and
must be larger than 96%. The filling factor of the following half-cores
must be equal to the nominal filling factor to within ± 0.5%.
10.12.2. Length of the half-cores
When the half-core is resting with its mating surfaces on a flat
horizontal surface, the length between the machined surfaces of the end
plates must be measured at the symmetry line of the pole and at the shims.
The average value of the 3 measurements must be equal to the specified
value ± 1 mm, but the maximum difference between the 3 values must be
smaller than 0.5 mm.
10.12.3. Straightness of the half-core
When the half-core is resting with the mating surfaces on a flat
horizontal surface, the deviation of the vertical reference surfaces C and
D (on top of the half-core) from an ideal straight surface must be smaller
than ± 0.15 mm for the B340 and ± 0.1 mm for the B190.
Whi thout any pressure applied to the half-core the maximum clearance
between mating surfaces and the horizontal flat surface must everywhere be
smaller than 1 mm. (To obtain this the deformations introduced by welding
may have to be corrected as discussed in section 10.10). The maximum gap
appearing between mating surfaces and the flat surface when applying
mechanical clamping must be smaller than 0.05 mm.
- 12 -
10.12.4. Perpendicularity of the end faces
The perpendicularity of the machined surface of the end plates
with respect to the horizontal flat surface must be better than 2 mm/m.
10.12.5. Other dimensions
The other dimensions, especially the position of the holes for
lifting and supporting devices must be checked.
10.13. END SHIMS
Each magnet has two types of end shims :
Thin shims of 1.5 mm and 0.5 mm thickness to adjust the magnetic
length,
Thick shims shaped such as to correct the end field.
The first magnet of each type must be delivered with end shims as
indicated on the drawing attached to the specification.
After magnetic measurements of the first magnet of each type
have been performed, the final shape of the 'thick end shim for each type
will be communicated to the manufacturer.
The magnets of the series production must be delivered with
4 thin shims of 1.5 mm and 1 thick shim mounted on each end of each half-core.
The 1.5 mm shims must be made from the same material as the lamina
tions and the 0.5 mm shims from dynamo steel sheets.
The thick shims must be made from annealed, hot rolled, low carbon
steel plates having the following magnet characteristics :
At a field of 300 A cm-l , the induction must exceed 2 T,
The coercive force must be smaller than 1.6 A cm-l •
The dowel pin to position the shim fits into the hole in the end
plate and must be made from stainless steel.
In addition, the manufacturer must deliver with each magnet
16 shims of 1.5 mm and 8 shims of 0.5 mm.
- 13 -
11. THE EXCITATION WINDING, DESCRIPTION AND TESTS
11.1. GENERAL
The excitation winding is composed of 2 identical coils, connect
ed electrically in series.
The short coils have each 6 layers of 16 turns and the long coils
4 layers of 9 turns.
The coils are made of hollow copper conductor, insulated exclusi
vely with glass-mica and all glass tape and a thermo-setting, radiation
resistant epoxy resin.
Each short coil has 6 parallel cooling circuits and each long
coil has 4 parallel cooling circuits.
11 .2. CONDUCTOR IIATERIAL AND DIHENS IONS
The conductor must be made from electrolytic copper with a maximum
free oxygen content of 10 parts per million and a resistivity at 200 C
not higher than 1.724 x 10-8 ~m.
The conductor cross-section has the following dimensions.
For B190 For B340
Conductor height 13.2 ± 0.1 mm 20.6 ± 0.1 mm
Conduetor width 8.0 ± 0.1 mm 15.2 ± 0.1 mm
Corner radius 1 mm 1.5 mm
Cooling duct 0 5.1 ± 0.1 mm 7.2 ± 0.1 mm
The copper bars must be of appropriate length to permit windings
with a minimum number of joints. All conductor joints must be in the
long straight part of the coil.
Before winding it must be verified on each copper bar that the
cooling water hole is not obstructed by blowing through a ball.
11.3. CONDUCTOR BRAZINGS
All joints in the conductor shall be silver-brazed without flux
according to an approved method.
- 14 -
The brazings must be executed under close control to guarantee a
perfect reproducibility. They must be absolutely water-tight and must not
increase the electrical and hydraulic resistance.
CERN demands that the joints be made by means of a machined
sleeve in the water passage.
Before permission can be given to start the production of the
coils, a number of brazing samples must be made and tested to demonstrate
that the brazing technique is entirely satisfactory. The samples will be
submitted to the following tests :
a) The joint shall be cleaned and machined to the nominal dimensions
of the conductor and visually inspected.
b) The joint shall then be stressed with a force corresponding to 2 a tensile stress of at least 4 kg/mm in the copper cross-section
of the conductor. No fissure or surface deterioration shall
appear during this test.
c) Water at SOoC will be passed through the conductor which will
be externally sprayed with cold water on the joint for 3 minutes.
This cycle will be repeated 25 times and test b) repeated after
the las t cycle.
d) The joint shall then be leak tested with gas under pressure
(60 atm. during one hour), the joint being in a water bath.
e) The joint shall then be cut open to inspect the brazing quality
(bad flow of brazing material, porosities) and to check that
the cooling hole is not obstructed.
If the brazing samples show bad flow of brazing material or
porosities and air bubbles in the joints or if they show any deterioration
during the tests, the manufacturer must improve the technique at his own
expense until a set of satisfactory samples has been obtained.
During production, periodic test samples (5 samples per month)
must be prepared by the manufacturer. Those samples will be leak tested
as under d) and then cut open and inspected for porosities, insufficient
flow, etc.
- 15 -
11.4. WINDING OF THE COILS
It is expected that the conductor be insulated before winding.
In that case, the inner conductors must be filed off if needed where
keys toning will occur.
11.5. INSULATION
11.5.1. General
As the coils will have to operate under severe working conditions
(thermal stresses due to water cooling, magnetic and mechanical forces
and a radiation environment), the manufacturer must assume complete respon
sibility that the coils will satisfy all the tests described hereafter
which are designed to ensure a reliable and safe operation over years.
Since the inlet temperature of the cooling water may be below the
dew-point of the surrounding atmosphere, the coils may be exposed to conden
sation. It is therefore important that the insulation be guaranteed water
tight to avoid short-circuits under these circumstances.
The coils will have to operate in the presence of ionizing radia
tion so that the thermo-setting resin must have an adequate radiation
resistance (see section 11.5.3.).
11.5.2. Insulation proce~ure
Tae manufacturer is entirely responsible for the insulation
procedure; however, the following conditions must be satisfied:
a) Prior to winding the insulating tapes, the conductor surface must
be cleaned and degreased by sand-blasting. Copper oxide
and burrs must be removed.
b) The conductor insulation and ground insulation must be built up
exclusively with glass-mica tapes and all-glass tapes. The tapes
used and the composition of the insulation must have CERN's
approval.
c) The thickness of the conductor insulation must be about 0.65 mm
resulting in 1.3 mm spacing between adjacent turns.
d) Insulating sheets of 0.4 mm thickness must be inserted between layers.
e) For the ground insulation, a thickness of not less than 2.5 mm is
required such as to ensure about 3.15 mm between conductor and ground.
- 16 -
f) Before winding the ground insulation any empty space shall be
filled with glass fibre since no apprecialbe volume of unfilled
resin in the coil is permitted. This also implies that the
mould must be made in such a way that the external layer of resin
not filled with tape is less than 0.5 mm thick.
g) The completed coil has to be placed in a mould which confines it
to its final dimensions. The coil is then dried and impregnated
under vacuum with a thermo-"setting resin and polymerised.
h) The manufacturer must have CERN's agreement for the composition of
the thermo-setting epoxy resin he intends to use for the impregnation
(see also section 11.5.3.).
i) During polymerisation, thermal gradients shall be minimized and
the temperature difference between the ends and the mid-points
of the coils kept as small as possible.
j) The finished coils shall be free of cracks, voids and dry spots.
The coil surface shall not be machined or mechanically processed
after moulding, except for the removal of flash.
11.5.3. Radiation resistance of the thermo-setting resin
The coil insulation should withstand the absorption of a radiation 9 dose of 2 x 10 rads (1 rad = 100 ergs/gram) and the manufacturer must supply
evidence of the radiation resistance of the proposed resin.
CERN considers the flexural strength behaviour as a criterion for
the radiation resistance of the resin. The flexural strength of the resin after
it has absorbed 2 x 109 rads shall not be inferior to 50% of its original
value.
The tenderer shall specify in his offer the type of resin he
intends to use and its chemical composition as the latter is important for
jUdging the behaviour of the material exposed to radiation. CERN reserves
the right to ask for samples for testing the radiation resistance.
CERN also reserves the right, during production, to ask for
additional resin samples for radiation tests to check that the co:nposition
and curing cycle are still satisfactory.
- 17 -
11 .6. PROTOTYPE COIL
As soon as possible after the notification of the contract, the
manufacturer must construct a prototype B340 coil. This coil will undergo
a number of tests to verify that the adopted method of coil construction is
satisfactory. The prototype shall not be mounted on a magnet afterwards.
The coil will be considered satisfactory if it withstands the
prescribed tests without degradation. In case of failure(s), the manufactu
rer must improve his design and construct (a) new coil(s) at his own
expense until a satisfactory solution is found. Only then will CERN give
approval for the series production of the coils to be started.
11.6.1. Tests to be done on the prototype coil
The coil shall be energized and the water flow adjusted to obtain
a SOoC temperature difference between inlet and outlet water, the cooling
circuits being connected in parallel. Once the temperature rise has
reached SOOC, the water flow shall be reversed until the same temperature
difference is reached again. The reversal of the water flow shall be repeated
1000 times. After every 200 reversals and at the end of the cycling, the tests·
11.7.3. must be repeated (measurement of insulation resistance, ground
insulation test, interturn insulation test).
11.7. PROVISIONAL ACCEPTANCE TESTS ON THE SERIES COILS
The series coils must be submitted at the factory to the following
tests in the presence of a CERN representative. The test results must be
recorded together with the coil series number and transmitted to CERN.
11.7.1. Geometrical test
The dimensions and tolerances as indicated on the drawings
will be checked.
11.7.2. Flow and Pressure test
The flow in each parallel circuit must be measured for a pressure
drop of 6 atm. It must exceed 1.6 £/min for the short coils and 4.4 £/min
for the long coils.
The coil must be pressurized during 1 hour at 60 atm. No evidence
of any leal, mus t appear.
- 18 -
11.7.3. Electrical tests
11.7.3.1. t!~§:~~~~IE~~.!:_2i_~~§.~l~!.=.~£~_~~~~§.!~~£~ The insulation resistance with respect to ground must be measured
with t.he coil immersed in \vater LIt ambient temperature. The coil connec-
dons must be lifted out just as far as needed and wrapped with wet cloths.
The insulation resistance must. be measured at least 2 kV de and must exceed
100 }to.
Before and after each of the following tests 11.7.3.2 and 11.7.3.3.,
this test must be repeated. The value of the insulation resistance must not
be smaller after the test than before (10% tolerance). If it appears to
have dropped by more than 10%, successive tests of half duration shall be
performed and the insulation resistance measured until it stabilizes at a
value exceeding 100 Mll.
1l.7.3.2. Ground insulation test ----------------------This test is to be performed after 12 hours of complete inunersion
111 water at ambient temperature, the coil connection side being above tv-ater
level and wrapped with wet cloths used as artificial ground. A test
voltage of 10 kV r.m.S. at 50 Hz must be applied between copper and ground
for 1 minute.
11.7.3.3. !~~~E~~E~_~~~~l~~~~~_~~~~
Immediately after the above tests, a voltage of 50 V r.m.S.
per turn must be induced for 1. minute in the coil, the coil being used as
the secondary winding of a transformer at a frequency between 50 and 1000 Hz.
The primary current and the induced voltage must not vary during the whole
test period.
CERN vJ:i,ll reject any c.oil showing electricLd or mechanieal
degradation or failures appearing dllriog these tests or not satisfying
the dimensional tolerances.
11.7.3.4. ~~~~£E~~~l_E~~~~£~~~~
The electrical resistance at 20De of each coil must be measlJred
and must not exceed 0.105 !,i for the 13190 and 0.0197 " for the Jl340 types.
- 19 -
12. THE COMPLETED HAGNET, DESCRIPTION AND TESTS
12.1. GENERAL
After inspection of the half-cores and coils, these components must
be assembled. The cooling circuit must be completed and the ancillary
components mounted so that the magnets are ready for operation. A number
of tests must be performed before the magnets can be delivered at CERN.
12.2. ASSEHllLY
12.2.1. General
The assembly technique must be carefully studied and chosen in
order to satisfy the following requirements :
The coils must be clamped firmly by means of resin-filled tubes
and hard and soft spacers and by means of supporting jacks so
that their position is stable in time and that mechanical forces
caused by magnetic fields and normal handling and transport
cannot harm them.
The geometrical tolerances as indicated on the drawings must be
met and the tests described in section 12.3. must be passed
successfully.
The following is a possible assembly technique, but the manufac
turer is free to propose alternatives. CERN will give careful consideration
to any alternative proposal.
12.2.2. Coil into Core
It is suggested to assemble first the two half-cores and their
respective coils separately. For that purpose, spacers of glass-fibre
reinforced epoxy resin and ethylene-propylene rubber must be used. The
spacers are placed at the bottom of the coil window at intervals such as to
coincide with the position of the clamping jacks and must be adjusted to
the measured coil dimensions. The spacers touching the pole surface and the
vertical part of the return yoke must be continuous over the entire length,
of the magnet. The thickness of these must be adjusted by adding thinner
spacers wherever required by the coil tolerances. The empty tube for final
clamping must be glued to the coil at a few points for stable positioning.
After checking the coil position, this glass-fibre sleeve must be filled and
pressurized by an epoxy resin. The composition of the resin must be chosen
so as to obtain suitable viscosity and hardening time and minimum shrinkage.
- 20 -
12.2.3. Assembly of magnets
Since the final magnet has a better stiffness and stability
than the half-cores, an assembly table must be used to correct the
geometry of the half-cores during the final
be equiped with 10 (6 for the short magnets)
assembly. This table must
adjustable jacks, precisely
positioned in an horizontal plane and with a nuber of references positioned
in a vertical plane. In front of each of these horizontal and vertical
reference points a mechanical or hydrau1ica1 device must be present in
order to produce a sufficient pressure to straighten the half-cores before
we1ding.The lower half-core will be put on this table (the jacks fit into
the holes in the angular plates) and the coil supporting jacks put in place
(these are located at the same position as the assembly table jacks).
The upper half-core must now be turned over and placed on the
lower half-core. Consequently the coil supporting jacks are compressed.
During turning over the coil of the upper half-core must be kept in
position by adequate external clamping.
A kapton foil with a thickness of 0.05 rom must be inserted
between the mating faces of the half-cores.
The relative position of the two half-cores shall be adjusted to
obtain the precision indicated in section 12.3. Hechanica1 clamping must be
applied (by jacks fitting in the holes in the angular plates of the upper
half-cores) and magnetic clamping to close the mating surfaces to a clearance
less than 0.1 rom including the kapton foil. Hagnetic pressure can be
obtained by placing a few windings around the lower half-core and exciting
them by a suitable current (turns x current = 6000 At.). The tie plates
are then welded to connect the two half-cores while the magnetic field
is on.
12.3. TESTS ON THE ASSEMBLED HAGNETIC CIRCUITS
The following tests must be performed in the presence of a CERN
representative. The results must be recorded with the 2 serial numbers
of the half-cores and transmitted to CERN.
12.3.1. Longitudinal offset
The longitudinal offset of the 2 machined surfaces of the end
plates of upper and lower half-core measured on the poles must be smaller
than 0.5 mm on each end.
- 21 -
12.3.2. Control of the mating surface clearances
The clearance between the mating surfaces shall be smaller than
0.1 mm, including the kapton foil.
This check must be done with feeler gauges at all spaces
inbetween the tie plates.
In addition, the magnet gap height must be checked as far as
possible at both ends of the magnets.
12.3.3. Transversal offset
The transversal offset of the vertical reference surfaces of the
two half-cores must be smaller than 0.3 mm for the long magnets and 0.2 mm
for the short magnets.
12.3.4. Straightness of the yoke
The deviation of the vertical reference faces from an ideal
vertical plane shall be measured over the entire magnet length and shall
not exceed ± 0.15 mm for the long and ± 0.1 mm for the short magnets.
The same tolerances apply for the horizontal reference faces.
The twist shall be measured over the entire magnet length and
shall be smaller than 0.75 mrad for the long and 0.5 mrad for the short
magnets.
For this test, the magnet must be supported at the points
foreseen for this purpose (1 jack at 1 end, 2 jacks at the opposite end).
12.4. FINISHING OF THE MAGNET
After assembly, the cooling circuit must be completed, the
electrical connections and interlocks mounted and the covers added.
The "l,qtes which support the target hoiders and the magnet support
ing plates must be welded to the magnet after assembly.
The serial number must be stamped on the magnet together with
the serial numbers of the half-cores and coils.
In a suitable position, a marking plate must be mounted with
the following indications :
- 22 -
1. nominal voltage
2. nominal current
3. time constant
4. flux density
5. equivalent length
6. water flow
7 • pressure drop ~p
8. weight
9. serial number and year of construction
The values for items 1 - 7 will be connunicated to the manufac-
turer by CERN.
l2.5. COOLING
The maximum pressure of the cooling water may be as high as
25 atm. The cooling system must be suitable for continuous operation under
these circumstances.
Since demineralized water will be used, all metallic parts of
the cooling system must be made of copper, zinc-free bronze and stainless
steel.
The hydraulic connections between the coil inlets and outlets
and the inlet and outlet manifolds are made of copper pipes.
Some of the connections between copper conductors and copper
pipes are brazed, others bolted,with mineral joints for tightness. The
brazings must be carried out with great care. The manufacturer must
prepare samples of the brazings and perform tests as in section 11 :3. The connections between copper pipes and manifolds are not
brazed but made with standard tube fittings.
The entire cooling system must be insulated from the yoke and
adequately fixed.
The cooling water tubes must be insulated by 2 superimposed layers
of heat shrinkage sleeves.
To insulate the pipes from the clamping pads, 6 layers of kapton
with a thickness of 0.05 mm must be added around the tubes.
- 23 -
12.6. ELECTRICAL CONNECTIONS
The tHO coils of the magnet are electrically connected in series.
The interconnection has to be insulated aften . .;rards. To conform to CERN's
existing cables, the terminals must be made as indicated on the draHings.
12.7. INTERLOCKS
Near each water inlet small temperature sensitive switches
must be mounted and insulated. The contacts must be connected to a terminal
strip on the front side of the magnet.
The outlets must also be protected by means of small thermal
s,,,itches. These sHitches are mounted at the non-connection end of the
magnet and fixed on the ground insulation, the thio.kness of Hhich must be
controlled. The switches must be wired and connected to a termina~ strip on
the front side of the mngn,ct. The Slditches on the non connection end must
be protected by a removable cover.
12.8. PROTECTIVE COVERS
On the connection side of the magnet a removable protective cover
must be mounted, covering the coil heads, the cooling system and the
electrical connections. The cover must have openings for the vacuum tube,
and the electrical and hydraulid connections. The cover shall be adequately
subdivided enabling e"sy mounting and demounting in the later"l direction.
T:1e covers must be made of an insulating material, e.g. fibre
polyester of "bout 4 mm thickness.
12.9. PROVISIONAL ACCEPTANCE TESTS OF THE COMPLETED MAGNETS
The completed magnets Hill be submitted to the following tests at
the factory. They c"n only be shipped to CERN once they have passed these
tests.
12.9.1. Leak tests
The entire cooling system of the magnet shall be tested with water
at 60 "tm. for 1 hour. It must be absolutely water-tight.
12.9.2. Flow test
The total water flow of the magnet must be measured CIt a pressure
drop of 6 atm. between tllC hydraulic terminals.
- 24 -
The flow shall exceed 19.6 litres/min for the B190 and 35 litres/min
for the B340 magnets.
12.9.3. Resistance of the magnet
The total electrical resistance of the magnet must be measured
between the electrical terminals. It must not exceed 0.21 Ohm for the
B190 and 0.0396 Ohm for the B340 magnets at 200 C.
12.9.4. High voltage test
5 kV r.m.s. at 50 Hz shall be applied between the coil and the
yoke for 1 minute. After the test, the insulation resistance must
be measured with a voltage of at least 2 kV de and must exceed 100 1m.
12.9.5. Test run
The cooling performance shall be checked during a test run of
a few hours at nominal current. The correct functioning of the thermal
switches must be checked.
12.9.6. The position of the target holders and base plates
The position of the target holders and of the supporting plates
must be verified.
All tests results shall be recorded together with the serial
number of the magnet, the half-cores and the coils.
12.10. TESTS AFTER DELIVERY AT CERN
Each magnet will be excited to full field and magnetic tests
will be carried out at CERN prior to acceptance of each magnet. As a result
of these tests CERN may decide to repeat any of the tests described in
this specification.
CERN reserves the right to return to the manufacturer any magnet
which fails to pass any of these tests.
- 25 -
13. MISCELLANEOUS
13.1. TECHNICAL INFOR}~TION TO BE COMMUNICATED BY THE ~~UFACTURER
It is requested that CERN be informed about all technical details
of the construction.
The following information shall be provided by the manufacturer
a) Data on the construction materials
copper conductors
steel for laminations, end plates, angular plates, end shims
insulating material, resin, tapes.
b) Data on manufacturing processes
curing cycle for the resin
welding and brazing processes
assembly methods.
c) Drawings before production has started (for approval).
d) Time schedule of manufacture followed by regular progress
reports.
e) Any technical modifications with respect to the present
specification (for approval) .
f) Three complete sets of final drawings (for internal use at CERN).
g) Two copies of all test certificates.
13.2. LIST OF SAMPLES TO BE FURNISHED BY THE MANUFACTURER FOR APPROVAL
13.2.1. Steel samples
- A number of rings cut out of the steel sheets as indicated
in section 5.2.
- Ring samples of the steel for the end plates as indicated
in section 5.B.
A number of punched laminations as stated in section 5.7.
13.2.2. Copper samples
Three samples (2 m length) of insulated copper conductor used
for the coils.
- 26 -
13.2.3. Insulation samples
Samples of the tapes used for conductor and ground insulation.
Samples of the resin for radiation resistance tests (pure resin).
13.2.4. Brazing samples
Five samples of each particular sort of brazing connection.
13.2.5. End connections
Five samples of water outlets of the coil conductor to copper
tube connection.
13.2.6. Samples of thermal switch mounting
Five samples of the mounting of thermal switches on the inlet
conductors, insulated and wired.
13.2.7. Sample card
Sample card for the selection of the colour for the iron yoke
and the protective covers.
SPS/EMA/Spec. 78-16
TECHNICAL SPECIFICATION FOR THE BENDING MAGNETS
FOR THE CERN ANTIPROTON TRANSFER LINES
TECHNICAL QUESTIONNAIRE
The answer to the following questions will be taken into account
by CERN for the evaluation of the proposals made. Tenderers are requested
to answer clearly and completely all questions put forward.
- i -
1. Who will be the proposed steel supplier?
2. What are the magnetic properties of the steel?
3. What type of insulation do you propose for the laminations and indicate
the qualities : thickness, surface resistivity, breakdown voltage,
heat resistance, radiation resistance, mechanical properties.
4. Will the sheets be insulated before or after punching?
5. Give a description of the punching procedure: number of operations,
part of the contour punched in each operation, punching force, tolerances
on punching die, expected frequency of sharpening operations of the die.
6. How do you intend to control dimensions and tolerances of the punched
laminations ?
7. Chemical composition and magnetic qualities of the steel for the
end plates.
8. Information on the steel for angular plates.
9. Give a description of the stacking process: number and location of
references, tolerances on stacking references, stacking pressure,
intervals of applying the stacking pressure, method for controlling
contact between laminations and stacking references, shimming method,
expected precision after stacking.
10. Describe the welding process: welding scheme, welding method and
eventually procedure to correct deformations.
11. Indicate the methods you propose for mechanical controlling of the
core and pole gap tolerances.
- ii -
12. Information about the copper conductor you intend to use
content, conductivity, tolerances on profile, length.
13. Indicate the brazing technique you intend to use.
14. Description of the winding technique.
oxygen
15. Composition of the conductor and ground insulation
and number of layers of the tapes.
type, thickness
16. Detailed composition of the resin.
17. Description of impregnation and curing cycle and preliminary indications
on the mould you intend to use.
18. Information on the radiation resistance of the proposed resin.
19. Describe the procedure for the final assembly you will propose if
different from section 12 of the specification.
EUROPEAN ORGANIZATION FOR NUCLEAR RESEARCH
300-HA/lnt-71-3
WE/I - 3960/Lab. II
SPECIFICATIONS OF TIlE STEEL SHEET' Fon TIm 300 GeV
HAGNET SYSTE}!
Original issue
Amendment A
Amendment B
9 August 1971
4 January 1972
27 July 1972
Geneva - 9th August, 1971
B
- 1 -
1. Introduction
The European Organization for Nuclear Research (CERN) in Heyrin
(Geneva) has established a second laboratory adjacent to the existing
one. This laboratory is to be the site of the world's largest proton
synchrotron. One of the main components of this machine is the system
of approximately 1000 magnets weighing in total 15,000 T, which are
spaced around the 7 km circumference. The iron cores of these magnets
will be fabricated from precision punched laminations of 1.5 rom thick
cold-rolled, insulated, low-carbon steel.
1.1 Dimension of ~,e steel sheet and quantity required
The nomina'l thickness of the steel sheet shall be 1.5 rom. This
figure represents a compromise between minimizing stacking costs and
obtaining the required punching accuracy. In the present design there
are three types of magnets in the system. One type is the quadrupole
focusing magnet, 1.0 m long, the other two types are bending magnets both
.qhou t ~ 2& mlong but with different apertures . . ,
The external diluension of the steel sheet must be such as to
allow a sufficien'/; margin for accurate punching of the contour and for
the removal of undesirable wedge-shaped regions at the edges. Hargins
of 30 rum on the sides parallel to the rolling direction and of 15 rom
on the others have been found adequate.
The total amount of steel required is approximately 8,000 T in
stage A Rnd up to a further 8,000 T in stage B. The steel will be
supplied in sheets suitable for punching one or more of the
laminations'
1.2 Scheme of the steel delivery
It is proposed that CERN will place overall contracts with one
or more coremakers, who will be responsible for the placing of a sub
contract for the supply of the stml sheet. 1'he coremaker will be
responsible for all mechanical aspects of the strol supply, while CERN
will define and carry out the acceptance tests concerning the magnetic
properties of the steel sheet.
S-L(~el prodllction te~"ts ~.;1l.al1 lJC sLarted illlmedjately after tlle
steel order is placed anfl t"\\fO l)atellcs oJ' =50 tons produc(~d separately
B shall be sullmitt(>d; the first ,ifi-iJJ:in 30 d .. 1V(; and the second ,,,ithin
B 60 d s of the Ord(~T <18 eVlc1eJ)cP of thC' ach.ievemell-L of II sai;:isfactory
II
quality in tIle process l}ro]}osctl for llirge-Hcaic prodllci;ioIl. After
in.'3pection and testing~ this '-rill be 1HH~d by the corf:maicers for the
construcLion of magn('t core..').
Hr::,r;,u"lar steel del ivery !;11nll_ start:
rate of 1)000 tOll!~/mo\lth~ or a.':> determ"i.nc:d hy the rC',qui.rement!; of tlH~ cor(~l1lakC'L
1.3 Transpor'ta'j;ion nnd stOl'[lcrC
rnle steel shall l)(~ oilQd iJ-nU packaged in sl]ch a way a~--l to be
protected agninst surface detcriorntioll Illld dU1Dage during transport
ation and storage.
2. }fa.r.~n(~'t;ic propc!l't-i (~S of tll(,~ :~te(>l s]lec~t
2.1 GCllcrnl.i'ties
IJ1he :500 GeV magnet , .... il1 operate ll11dc:r plliseti GnJldit,ions over
a range of liOO _ JB,OO{) G dl1)'ing tlle n.cc(~ler;ltjon cyelt'. Due to the
101>/' v'alue oJ tJIC' illitial f:i (lId it iH illl}'lOl'tan-i, t.llat tllP ;:-;tc~(>l 1)n;-.) as
J..owa eoereivit .. y a:-:-; POL1Hil)lc, lind :it is parT,icularly Jmpori"tllt i;]lat
tIle ''\7nrint:ion ill coereivity tJll'Ollgllout L]l(~ 8teel prodllc'i:.i.O),l he kept
\rery smull.
very importan-L f,O that tolerances must he impoHed. boCh on the \l111\1e8
and t.he sprf~ad of tIle vnluen of COPl'civity and perlll(li\·!Jilit.y,
}i'rom prcviol1B eX])(,1'iencQ~ tll(; n('Qd 1'01' hig}l slltllrati()ll indllction
requireLi the une of 11 lO'\v-cHl'"bon Hteel; vl'ith a, 10""1'1"" content of impul'itieH.
- 3 -
Experience obtained in the construction of the CmlN Proton Synchrotron
and more recently "ith Lhe ISn indicates that a substantial improvement
of the low-field permeability and of the coercivity can be obtained by
a combination of suitable annealing treatments and cold reductions,
which further reduce the carbon content and increase the grain size.
'rhe magnetic characteristics indicated in these specifications have
actually been achieved on this type of cold-rolled, very low-carbon
steel sheet.
2.3 Coereivitv
The eoercivity value II hereafter specified is the value of the c lw\gnctizing field which reduces the induction in the steel to zero
from the value existing after complete saturation (II > 60 oersted). max
The vdlues of the coercivity through the whole delivery (measured on
samples as indicated in 2.7) must stay within an interval of :!:. 0.15
oersted with respect to a nominal value proposed by the steelmaker.
This nominal vnlue must be as low as possible, and in any case lower
than 1 oersted.
2.~ Pcrmeabi.litv
'rhe required values of permeability, i.e. the ratios of the
magnetic inductions n (in Gauss) to the applied fields II (in oersted)
measured at points along the normal magnetization curve, and their
permissible spread are usually specified, for the purpose of magnet
design, as n function of the induction B.
In order to facilitate measurements, the following equivalent
specification of the induction n as a function of the field II is
gi von:
n) At a field of 0.5 oersted, all measured values of induction
must be higher than 1,00 G.
b) At Il field of 15 oersted, all lIwasured values of induction
must he higher than 15,()()O G, lind their spread, Le. the
difference beb,een the highest. and lowest, must be less
tl",n 600 G.
c) At a field of 300 oersted, all measured values of induction
must be higher than 20,000 G.
B
- 4 -
2.5 Ageing
In principle, the steel supply should be entirely stable with
respect to time in both coercivity and permeability. Since the
opcrating temperature of the magnet cores is expected not to exceed
25° C, stability of the magnetic properties refers to several years
of operation at this temperature.
As a practical criterion, it is proposed that the ageing
properties of the steel sheet are evaluated by remeasuring the
coercivity after 100 hours accelerated ageing at 150 0 C on the samples
submitted by the steelmaker. The measured values on the aged samples
should not exceed the limits specified in section 2.3 by more than
0.1 oersted.
After the order, similar measurements "ill be repeated on samples
from full scale production tests. The results of these measurements
should meet the same condition. It is not proposed to perform
systematic ageing tests throughout the delivery, but it is expected
that the constancy of the ageing properties will be ensured by the
constancy of the chemical composition and by the reproducibility of
the production process. Therefore, the results of the chemical
analysis carried out by the steelmaker onea~h batch of steel and
the records of the processing shall be made available to CERN. The
relevant tolerances should be proposed by the steelmaker and agreed
by CERN.
2.6 ,Surface resistance
The surface resistance of the laminations will be tested during
fabrication of the half-cores as described in the specification for the
manufacture of half-cores.
- 5 -
2.7 Procedure for Dlntrnctic m('asnr(~m(>nt~
The magnetic pl'operties of the steel will be tested by CERN by
systematic measurements on samples taken throughout the delivery.
The steelmaker shall offer CEJU'! satisfactory facilities for the
inspection of the delivery and the taking of the samples. Samples
shall be taken from each batch of steel in its final condition previous
to delivery and the batcl. will not be permitted to enter the stores
for core-making until the samples have been tested.
A representative of CEJU'! will be present during the preparation
of samples by the steelmaker.
TI.e detailed sampling arrangements for the performance of the
magnetic tests and the insulation test will depend upon the form of
the steel provided and will be decided by agreement between the steel
maker and' CEJU'!. In any event the maximum amount of steel from the
production used in this way will not exceed 0.2%.
It is proposed that the results of the measurements by CEJU'! shall
be submitted to the steelmaker. Unless an objection is made within
fourteen days after receipt of the data, it will be assumed that the
steelmaker is in agreement with the results. Subsequently, these
figures will be used for the purpose of acceptance and rejection.
In the event of an irresolvable dispute about the results of the
measurements, a neutral institution will be requested to arbitrate.
2.8 Tolerances on magnetic characteristics measured on samples
In principle it is desirable that from any steel batch no sample
should show magnetic characteristics outside the limits stated in
scction 2.3 and 2.4.
CEJ1N must reServe the right to refuse acceptance of a batch of
steel which exhibits unsatisfactory magnetic characteristics.
3~ Geometrical and 1U(~cllil,nical pl'opert:ir?s oJ th(~ steel
TIle final geometrical and mechanical specifications of the steel
will be the entire responsibility of the coremllker and the steelmaker
- 6 -
and will have to be subject of the contract between those two parties
for the steel supply, but the agreement of CEIL'! to these precise
B specifications will have to be obtained prior to the signature
of the conctracts. In order to maintain constant magnetic character_
istics, no mechanical processing of the steel sheets except shearing,
punching and deburring can be permitted after the sampling for magnetic
measurements.
As a general statement, it is required that the steel in its
final condition be suitable for precision punching, and for assemblin.,
in straight stacks with a large pocking factor.
It will be the responsibility of the coremaker to undertake
adequate geometrical and mechanical testing on the steel supply during
delivery and to define, in agreement with the steelmaker, the precise
methods of inspection. The wastage of steel through sampling for
geometrical and mechanical tests should not exceed 0.1% of the supply.
CF.JlN sholl be informed of the agreed methods of inspection and the
results of the inspection shall be made available to CEIL'!.
- 7 -
~~~)J.:i~~2-f~_OJtl('tricn1. :JnrI Ewehan.-i c'~U~:.2~:rtj os
yJ' ___ U!...::_~~:t.e (' ~ Sll ce ts
The sheets shoull!' l)c as flut as possible and free of in·Lernal
!3C:L"QS:)(~S, ill ortlcr to avoid mo\"c]!)(!nts of the' gap profile nft'ir punch
ing nrH1 lo(;al pcrtul'bat,ions of the magnetic properties in staclring
U]}acr pressure. ThlaCV~].Op~ll)lc 1111fl.utncs8 is cHpccially harmful.
o encler a prC~,~~llrc! o·r 100 l:'g/m"··, all POjllts of [t f311cct shouJd
be c(lllfj)lQ{: bct'w(~en t1'10 IFl)';,)llel plal1C'B, di~)tnnt i'l'om caeh other
1)), d + 5 m!l1, ,·,'hQre d i::,; the thietncss of the sheet in millimeters.
Norccl"I'cl'} tJI(~ HHlJJlitude of any local \-I<1\'e sllould not exceed. 0.5 per
CCllL of the '\,:_n/clcnt~th.
As a erit(~rion for the UhsC'f!ce of int(,Tnal stresses, it is
pJ'Clposecl tll[tt, iJ a shpct is cut and the two halves nrc hrought back
to contr •. ct, the JlJa:dr.1'Ul1l clcaranee appearing oC'bvoen t.he edges should
not exceed 0.3 Gml.
IJ' ·[.he S!l(~(~ t. i::; :fillully ttllnl~aled.·, ill coils, the light sl\:illlJaSB
oj' the coil, (l'ctlucti()ll oj' less than U.3 pCl'eent) may be pcrfol'mcd
to flatten the sheet previous to fly-cuttinc;, Although this operation
Jlny 1", not too harmful :frolll the point of vie" of the alllount of' stress
hHi.lt into the Silcct, it~-i in:fluQnec on the coercivity is not negligible
and must be tali:{~n iuto [)'(;COUllt ill the preparation of samples for the
t(:ndcr.
no] "i.eJ' :flnttf'ning 01' skin Jlas~;ing of tJl<~ indiyidunl 811('0-(-..''; aft,cr
:f'lY~CHt.tjll:~ is not PC]'?:!j ssilJle, llcc:nnse it ".'Ollld ntlver~-iely affect. the
longitudjlwJ dj;-d:.l'.illut)Ull oJ tlJielclless.
'! ,- .
sllc'et.
- 8 -
Tn order to obLain a sa-tisfnct.()~{·y s':~ael:, it is ef:l}(~cially :ii."ljJcrklllL
to reuuco us lUuch as possible the systematic uifferences in thicl,ncss
uct,\.,r-ecn ':nrious Tegions of the sheets, '\Ihich give ris.c to the lHlild.-1!p
of voitls in the f-;tnc:1c Therefore, -(:·lle conv(~xi t.y o:f the IlJ'ofilc oJ' the
sheet crOSH section perpendicular to the rolling direction ~IOI1Id be
reduced to a minimulU an(1 e:fforts should be wade to maintain the 1)1'ofile
close to two straight parallel lines over the widest possible region.
Statistical C01iJI)(~nf3ation 101' the convexity 01' tlH~ profile coult! of course
be olrtainecl lJY the presonco of a CUl'l'cspol1uil!g amount of sheets ,.,ith
conC[lve profile, if the prtHluction of such sh(,ets ,.,ould he at all co)~
patiblc '.,ith sou·nd manu:facturing processes.
In order to illustrnte the naturc of the requirelllent, the follo\·.'-
illg (>x[!.mplc oJ a possilJlc critorioTJ for thie!(ncss l)nifol'l"JiLy is giY(!]1,
A ntllicl~ness sprcacl index" is cnlcnl{~ted for a sample sheet from tho
,,{eights of 'f groups of djscs of 80 E 1n diameter, punched from tho sheet
along }-! lines parallel to the rolling directj on, tvo ncnr the edges
and t;\~·o nenr the mitldlc. rrhc "thiclrness spread index" is eXIH'cssc£1
by the f01'mul,,:
p max
q = ---p
- p . mlll
avc
where Panel P. are th" "eights of the heaviest and of' the lightest max mln
of tI10 ~ groups, respectively, and p .. ' . is tho nVC:CF\.f.rC of the It vci[(hts . avo L> '-'
The "thickness spread index" should 1)0 lover than n given value. li"'l'OlU
our experience this limit value might be 10l:er than 1.5 percent. Other
criteria, based on a statistical co}~)inntion of crOBS sectional profile
measurements could, of course, be cf}"tlD.lly ncccFtn.1)lc.
No operation vhich vould t(mo. to C:l'Cilte ft syst."","t.ici.t.y ill t.he
lor:.~it1'!.dinnl pattern oJ th:i..el::ncsB in the ~;heets, BllCh as, for il):',:d:nncc,
flattenillg 01' sld.lI-pussillg of. tIle illdividual sheets, if.) pcrnis:-·dblc.
'1111c deviation of t.he absolute value 01." t.ho [lveJ'age th:i.ck~1r!S8 of
each sheet from the nomin<ll value ifJ Hot so import.ant as the thickl1(~SS
un:iJormity in the l})(J.iviunal shf~etn .. As a prnetical staHdal'd, it is
su[!:gested to n<lopt a toll~rancl! of .~ 0.11 Hun,
" . -~ r,"
I ! ! 1 j"
T
g-I "
1
.160
1 x45~_ , "i:-lx45'
!
~ is:
12401.0.05
,-I '574 to.l
--1'-----'
_ ... 8.84 tO,l
J
·*~I· ~)
r
I
Identification notch :,-"---
~~==~ ......... ~I
REMARKS: Tolerances of straightness and parallelism to be strictly observed.
_General tolerances on symmetry with respect to axis J3.t 0,05 .
_ Tolerance symbols as per VSM 10203.
,Pole,Mating and Reference surfaces. _ * The dimensions marked with on asterix may
be changed after measurements of the prototype
"OU OJ'"~
S_LONG,?8...0V.
LAMINATION
(,I1"'-f)'V
d Ii !I
@ii \'1 iI j !;
Shims
r *1
121 !
t
Section A A
.. , I I
1_>!A5° ~ _n_~
*1 Ii' , 0
"I
r ~I ~I
j
II i!111 ••• · .• · ••••.•••• r r.· •••. ·.·.·.··•················•······.······.··.··.· •.......•. I . " j: !; "iji;;<; -,,:':ii"
lHO.o2
1
Section B B
10 ! I
i .O,l * '140.0,1
1;~:-~0,0~-* 1---- --
., .0. 2100-0;2
1 ..
C
.. -i , ,
¢' )xMl0
j
-~~-'l--_?1~.Jg.r:D.ft __ 9JLti.IJ,i.~_b_" . ., ./ \
/------------+-- -
,
!
1
REMARKS: Tolerance of straightness and parallelism to be strictly observed.
_General tolerances on symmetry with respect to axis B!O,05.
_Tolerance symbols as per VSM 10203. -* The dimensions marked with on asterix may be
changed after measurements of the prototype,
NlI V (rv Flame cut finish)
2 Hex.sock. ~~ew 3 ~.'---~~!".~. . P.2_~g_I __ pi~l _ 1 Stainless steel
__ );_I1_(:L_p_lgJ~_ . I. _L~~.Gi~~i-:-"-S-ee";;: ecificotions
,a\90·Bl~O '!;ltt' C~"',~~,,$.,LONGr7B_0'I_6
END PLATE 1 : 1 ~:,~~~;~~ "m
__ ~ ____ ~ ____ ~ ____ ~__________ ___ ~~~~"~,,,~~~~~8~O_3~;_'::;~2c~2C-~O=J
7
, '" I i I d i
I -y I I •
8
11
Pos 2
Pos 1
If) --. •
1----------- ----
¢ I
--··········t---- ¢ I
I ....i
+, ! 768 -, I
.. _. __ .. -----~ + l 1536 -e-'4l
I - ~------ - .. ------._.
I
L _--!;;£>;..
'--------- - ---
1872 !-1
255 to,? I------ ... -. --. .-----
~ , +
~I + I
372 0
- ... _------
1511:':1
6. t " '\ , I', \
o LD ..;t x
'"
I
-}--·.c:ccc....,. __ .'---, 1 5 !~, 5 I
- 9 -- . _. t I ,
I , 1 tl
2304 ti I . .j 3072 -···-1 --------
--I -
Break all sharp edges
4 Plate 10 thick 4 Plate 10 thick
Nb. p. unll' Nb. p. unit D"c,lption
2 Ac 37 1 Ac 37
. N,w V 7 ~ V :1;:0,05 :1:0.' ~ ~ :tO,l ± 0,5 templ.c' pl' N°
N" SCEM.QbH.v.tlonl. ·Foumlhtluu 'v.ntu.11
-
d
--
-
-
-
-
- h
III!Iim) jO ',J 0,1 0,1.,...-........... ft
En •• mbl. A ... mbly
S/.n.~mble S/ •• umbly
Dipoles antiprotons: 8190
Angular Plate OIG"-HtSAlION EUIIOf1:ENNI! I'OlIt I.A ttCHUOit! NuetfA!U
IUWPfAN OIIOANllAllON fOIt HlIClfAI: WUJlCH
CERN LABSPS CH-1211 GEN~VE 23
B 340 ~~~I' 'lio A
'/2 ,r; I====+=~~=l
,..,'" IC ,II:> 'UII,tl Contr6" __ L ,I
8033.17. t.. 2
3
, I
00
.......... fiIi} ............ II ........ II.+
·EIJ .
i End View B 31.0 a~d B 190
~V~~~~~4=~====~
i I
I I I I I I ,
];i.f±r _______ ::1_
I 904
, I
I I
/1 .~
2
" , ".
©
\l
II Ii
~II I I
I I
j
I
I
_._.j
i
I I
r (,5\ J i +---.
I r----
I I I I I
- I
-----
I I
I I
I
I I
I
!=~ .... ~~rn:iJ· .. ----
I
I / i
-- ---_.
A
-----
I ---- -
I
I A
( lOlOJ
~,
2.338 +'t
-----
A ~
70
: i I !
D
12 V,EW Il
o j
VIEW B
70
75
'10
154
II i!
@
u II H
5
42
43
"
I,~i:d:.]
'EllI[[]IlIlrnUlIIIIIIIIIII11IlITIIITllllillITIDBi
," ,-,
10 0 0
! /
\ 1.( l ::
i ,
,
. i
\
\
40
! ! I I
44,45
35
38
3S 3(;
41 37
! I \
-, ~" Lz.o-,- z.s-+-_zs_~ i: : ! I!
~,I",,'I' ,1'1' , ",'
(I)'
10
B
12 27 28
, ~: 'I
nETA1L 'lN~ULATING ClI'IMP"
f-
4- 3 2 1 13 11 .'l 31,32 7 ~ / / 23 33,34
~ POS.7'~·1\ SUPpLIED I\S ON!:. UNIT &1 £'..Ef'.N
7.S+10+2{;
' ~~ ,
, ,
,
0
~ 1"'[ 111111 1111 ~~ , ,
J'DI .Fl
::;;-
I r: ,
! ~' I ~ ~
I .,~_~_~_9 i-
,
1~~."""""" ••• ~,,' 11 ~~;:lL ~II' 'I, '" J1 t 17
-r--1 ,
II i ", ' "
~" ,tT, -L--J
"T~ ~-r-1
"~"" IIU ~=
- !
l I I I
CD ) f-r-
r-
I.~ 1\ r-1 c
J"c;, ',i,
I I I I ~I I' 24,2
M 'I f-J III ~ , "
i " Ii -fJ 26;
~"'Il I
~ ; 1
"",',5 -<,
5
DETAIL 'WATER l~LlT
~ 21 2'
~! !
~! I
is, 20 ~
6
18
1t
T
d,
, , ,
o
o
Cf!.O'<'S- ,';tcTION A·A
L o
~ 1,,(;
47,48
\ Lr'l '50,51,52
z"
~
__ L",_O,~K
_____ -L_~I
I
rrt····························-······---·-···········.. .. ~_I
,_.L _ ,
-- --~I-·
I I I I
II ! I
1--- -. I .-
1--, I
A
________ L~ __ ::,_~_Q} i
f- 38(;5 :;~
,---'j
15,1(;
10 85 VIEWe,
I @
VIEW A
D II
VIEW D
D i!
2 3
I
I
~, /13 VIEW L
.12
~-
ttl I
j
,--------------
tv1 tv1 ond N N
CD and E For g ,h ,and i
mating surfaces rderencc surfaces 'Qe specifications
y'
I
C~D
I
y
L,
~
~ X' -------'----;r-----'--- - -
N L~ 0
E"semblo A~sombly
740 '" -------------
N'
Nom·N~"'c DMO Issue
- l"".tt7Jr-i Q_ip_~I.e~_a'2~if>r~t0r1~J?_19_Q_B_3.~& l;f)~;;-::;:-' -FTT~,'IA!Ji A
Inspection of laminati pn------------I=+=
Is/on"omIlIO Slusombly
8033.17. 11. 3 ORGANISATION I.UROP~lNNE J'OU~ LA ~!.ClH~ClII NUCl(AI~1.
HlRQPtAN OROANIZAllON fOR NUCUAR RI.~EARClj
CERN LAB SPS CH-12l1 GENt'VE 23
b
HARl'l SOlllE.RE.ll
42
r DETAIL "jllTtRC.IHINEtTION"
I
40 41
/ I /
:,o~ ~IIIIIIIIIIIIIIIIIIIIIIIIIIIIIII~' /
.....
,. , , ++
. .....
/
II II I /
I III I
, I II II II
\ I I. ~...... , I j2:J I,
t!
c:SL
~n,~ < ,I' I
I /l'trl
\ \ ! \ I \ I
\
35 .. -·
3b··---
37
IH'.TAll "lNSlIlATlNli C.LAI1I"
T
S3
~ THEl'.t\{) - SWITLHES
(DIoIȣtTlCN~"
I 01
L,,--.--'+,--,-'-r-f-J ]
I :l ~ __ ~! 1=1 ==:::L._4
_3
50,51,52 . I
f-t. f-r-
i· .-·1D
I / I
EDt! I
ED· I
~~ ... ...... :.u_ .
·····B I
d 'I
i
r
27 28 (ml ............... -i_ ........ . 3412.
, ; ~-p!>-"
,
I +
5 4- 3 2 1 11 31,32 7
d !I
©> II 0·. ,I
!i I'
II :ll.·u· .. ' uu,. ............ , .................. , ................... ·.u···.···.· ... u. I '[ ::. jr :1 iii>iC-",i'··
\ \
~ ros. 7'~ ~11 SUPPLlED A5 ONE UNIT BY C.£RN
• 7·B+10tZ~
......
-I I
..
'" B9c
11:;
17
21
23 24,25
26
I:;
18·
14
... qJ .. '---i-+---·-~i--:--· l23_
r- t/\lltiIUt1 PlIITtI>
I 1
i I i:_-~'~~r "u;;;f~-;,:.,~T __ 5~_~i,~ 57
~:jf~~~;p!~j~f~~t_~:~;:f H _2,J_~~,~;~_~, ~.~_" __ ~_'-!-_~ __ ~!_ .. 5) ~t~_~_L 1'., !.~f~LII"_ .,II_~"£II 51.
_?,J»UI 51 2, __ I~_II!.~_~~~_~_H_~,!.f_"f:<! _5_0 2 __ '-~~_r_._oRl1,~," __ ~,_~__ ~~
?,_.L~~g.}_~_-"~~:?,~t~~~~_ ~_6
'='="=,
Ii ,54
~//
II il
ii
~~k" 11~55
II ;',=:; 'i
247 ---,
J.z;n~I1'N~~ t_'''~HT~~ 4. l_t,~n'~';"_\\J~~"~~ 45 Sn,,~ 12,.,.HU: H!Ml (hP $«(~"'_ 44 "_
}"~_t
1 CO""HT'~" 8 '1I',1-\~~;"~'UH ~""101. 41 i: - - "- 40
3 ;C~~I1P V"~II PMT 3~lr"'"'"'Mli"., ""'" li _ -" LO,,,I<. 33 ....••.•.•.... ;",;;:;,;,;,,;;,;;1
lN~U\."TIGN 37 __ _
4--I;:o;:\:~_ [/\_P_~C~.IV '~!i"';"":";' •••• I;;:::::·"~i .......................... I ,~_,~r_~\II_(i, _W"S"~", ~}l-:
:_I~ur:'M_~::~::_f~,~l ;~ &~m
_!-!t_\'I~_UlAl\~~ ''fUll\". 30 f~t 14\·\~/I'.~I&' ~3"15 ZitLlII1r 2~ e.tA~S j8"l~'1ZS 2, is_~r~oM' Z8 ttmAAUl!.l1 21' •• 30_101'>
~l(,oNTUl""~M~b"w'l 27 ~lHc llt'~'4s l:~\nU_ H ~ i~n'N~ I'oIMHH
~ Sl HU\b u.t ~t~~'W-I
zs Slue
: i5uif~",1" ~::~~~ -r~~T ~~ ~1It.~~
" ... I(O"H_rL".'.u~" "" .. "b_ m,t"_ 21 _~'.'. '.' 4 snl»~ "'''S"~.... 20" "_jHnM'o~ _","" ~(-,'.e,\IJ, 1,S .. " ; l«,~".'~"' ,""~, REhD ,1, .... 1IJ 111
,11'0':'05 rll','i jtl_;6 ':30 __ _
,_I_tl_IJ> __ ~_3_0 I,S 17
h.ntl'H. f'~" Ii. I1Imn;;"~~~"~:M 1lW.":.W~T:2~;~ti.f
\ , ' II 1 .. ]t\~"".l_b_ 0VTLM 11
INlET 10
1 LE:<-i._~~ s 1 __ :\IIA1_t_~ _i'IlT~~ B Z iWAHR CO""'~lTlON 7
_:l"I_("'_'SM~ __ '_ H_I1_11_' lJD __ t\t\ __ _ , IS.tlM·ZBOtiH 'ISo till_lB. hl1 "tG 11" ,,,'Is Nil
;5vm.ln II, UM
, , ,.'s.uppuen 111 C_{~~ '~u,pml> M [l~~' ~~\,ij~ H~ '2U·"S-\
~ ~~~~~~;~R!lZ'~O'U' 4 , .. "
.; 2 ,
: 8a~;<. -t:l~,13,~:1, ,:flo:n-17- 3-()
! e,,~~:~:~ 7 -:; - 0
'i~lW c~~,~~:~,c<;:\:-----------'))/ ,01.'1--'\ "2,5 ",~""r
1:1 ::;~~:r~""'"
. ~ - !:, I
§ -C i
; ~ I~ i~' i i~ \~i!~! H--H i ' I . ,c ''"'.!'';:.I
: ': ! ::' I:' I • ~ :: i i- - I
- i
~i
\z/. j~ I I~ I ~ I ~ I I I~ I~ i;! i:; r:; i ~ I I . -;;.:;:>;; I
t3 ~ < ;:; 2 ~
" (ii
8 ~ i :n
~
© .--. L.J
I
lf1
'" !
r
r--, LJl
R '-'
r- I CJ <-ll -' ~t
till 0'1
lilt <r-"'l -
r--r--
\J1 d tn ... .., U1
'" _~J ,
_30 0
,
.
-----------,
o "0_ ~
-
v. p , I
/
.---------.
MI\C\-\lNElI WITH EN]) PLATE -~___ +0,04
4>1&,5 - .. --. 4> ZD+ 0,02. 4'10,5 - -
140 ._----------
.'-....1
---cu- --.r~- o
-r 0,' AT 240=0,2.
.--"
I
..-.J
.. -.~
T a N
1
SECTIDN A-A
1 --2
.3
;r
S\-\ARP EDGES, SMDOTI-IEn
w
; •
~ {t:t:l1,;N ~~: M--------t-~f, SEE S,PEt1F'C.A.;:-.-~-,.----I ~ TH ILK " 11
REMI\RKS, FOR M!>.C.HINING. THE PLI'\TE NU"T BE MOUNTEI:I ON ~ i DESCRIPTION pos I MATiERE COTES BRUTES
" THE. C.O~REs,PDNn\NG END PLI\TE BO~~-17 -2-0
ANn MARKEn.
[NorCE DATE NOM ZONE MODI FiCA TiON
6
g ~ ENSEMBLE NOM DATE
Il\!'OLES '>-NTIPRDTDt-I5 li,g:I.'
END SHl MS
I~ ORGANISATION EUROPEE",NE POUR LA RSCHE'1CHE 'J\;Cl..EA RE
EiJROP~AN O"GAN'ZAT'ON FOR "VCLE"" "~S!-;"RCf-<
'07.'1 836-GIONEVE ,:;ose CERN-DIV: Sops mEX
1 '1 REMPLACE &033' 11' 12-:!' REMPlACE PAR
RE::OUCTION
8033-17-12-3 A
iH'.:I~'~~." ~I~~" ':. ~'i~
i '"~;'7.11=;;1~ ~I ~I
m ."'''. c ~ 0 ~
/' +:
glci!6 :\1_.\+
I~!;I~
~G~~~_;~.~ss
GE"E"~ ~S
w c
~ < " ~ 2 ~ " o ~ ?! ~
~
1-glued-2 - ~
i- cP 160 . ,_ 9>155
!
4 7
5
7 -1r ,
• i / /> ? ? J
,/
I / (
/ -----/'
J T ---~---~ . -~ { .; .. - ) -J/
I.
\ \, / ~ i // ~ I' ~
'----- .----------__ 1--
J
~
,
d
... -~-r-r---~---- . I· Su~w ~ i ~ . f . A l.~151f iJr ,]_')'()S'S
fL.1 <;;~jn'J VI(,<;t"-141~-,-)~!Z~ I~i ;,,,\. F· "J'~Sd
2 21Anlicorodoi B
'1i'''''''t:.H,C ,-,u'::;:> OMU;",") ',_ SC.'· 2:;;: Ute::> ...... ".,... t 'VI" ;'<O~~~ ~~ _. :;, S ENSEMBLE ,? ENSEMBLE ,. , E ~ )~ VII 28 -...... .- -- _ .......................... -..-." '~2~~~ .{..,::.)"_ '/
CONTROL::'
Jack i; j
REM PLACE
PEM::>LACE PAR
Ri:D'cJCTiON
I,,: 0' -,,~, ',CO' --OE "0: ".c,~ I~I ~~'~~~~~;J"\:::";;'~;":~::;,-" 18083 17. 13 3 J