ttf2: status of construction work -...

Markus Körfer, TESLA Collaboration Meeting Orsay, 06.09.041

TTF2: Status of construction work

TTF2 OverviewSchedule of the last yearStatus of RF system, CavitiesVacuum ComponentsMagnets / Power Supplies / CabelingDiagnostics / ElectronicsSurvey and alignment of componentsStatus Interlock SystemsMilestones and Outlook

M. Körfer for the TTF2 Team


BC 3 BC 2

260 m

VUV FEL Overview


VUV FEL Overview

> 146 diagnostic units215 km / 800 cab.total cable length

5rf-modules

213magnet units

358 mvacuum beamline length

260 mtunnel length

VUV-FELParameter concerning construction work

motor driver units > 102

Cavities (incl. gun) 41


TTF2 Schedule topics of the last year

1’2004end vacuum installationend vacuum installation

installation of remaining componentsinstallation of remaining components

end shutdownend shutdown

••••••••••••••••

start vacuum installationstart vacuum installation

commissioning complete accelerator commissioning complete accelerator now

9’2003

survey of magnetssurvey of magnets

6’2004

commissioning injector commissioning injector

survey of components and final alignmentsurvey of components and final alignment

incl. module installationincl. module installation

incl. module processing incl. module processing

diagnostics,cables.container,PS,interlock,photon diagnostics,cables.container,PS,interlock,photon beamlinebeamline

installation of injectorinstallation of injectorinstallation of guninstallation of gun

TTF2 shutdown schedule contained up to 450 topics TTF2 shutdown schedule contained up to 450 topics

11’2004


Magnets / Power Supplies

Dipole TDADipole TDA QuadrupoleQuadrupole TQBTQB SextupoleSextupole TSATSA SteererSteerer TCATCA

• all magnets are fabricated, delivered,all magnets are fabricated, delivered,installed and alignedinstalled and aligned

•• climate control unitclimate control unitfor for undulatorsundulators in operationin operation

UndulatorsUndulators


Magnets / Power SuppliesMagnets Current Voltage Qtty. Type

Gun Solenoids

420 100 2 SCR

Gun QP 10 2,5 limited

65 2 2

Linear stage with SCR pre-regulation

QP, DP 200 60/120 21 Buck converter

QP, DP 400 Up to 120 41 Buck converter

Sc. Magnets

Up to +/-100

+/-10 47 New design

Undulator steerers

+/- 30 +/- 10 30 Linear H-bridge

Steerers +/-3,5 +/-120 69 Switched on primary

Dump +/-100 +/-100 3 H-bridge bipolar

•• missing power supplies installed and testedmissing power supplies installed and tested(TTF in total 217 units)(TTF in total 217 units)

•• allocation of PS, cables and magnets doneallocation of PS, cables and magnets done•• Polarity of PS concerning magnet optic checkedPolarity of PS concerning magnet optic checked(except (except steererssteerers))

•• new PS operational middle of Septembernew PS operational middle of Septemberdue to delivery problems of electronic cardsdue to delivery problems of electronic cards


Magnets / Power Supplies

Container structureContainer structure TESLA tunnel concept TESLA tunnel concept –– 3 Docking stations3 Docking stations

Experience:Experience:•• preparation of PS in laboratory preparation of PS in laboratory -- easy accesseasy access•• easy handling in the tunneleasy handling in the tunnel•• cost estimate for TTF2;cost estimate for TTF2;

-- container more expensive than container more expensive than standard racksstandard racks

+ cabling is less time consuming+ cabling is less time consuming+ short cable length+ short cable length

32 Container32 Container


Utilities, Cabling and Experiencetunnel view tunnel view

gangway gangway -- top viewtop viewopen gridopen grid

cable pallet under the cable pallet under the gangwaygangwayside viewside viewExperience:Experience:

•• bad pallet access below gangwaybad pallet access below gangway•• time consuming cabling beside thetime consuming cabling beside thecontainerscontainers

⇒⇒ expensive solutionexpensive solution⇒⇒ better, pallets beside the gangway (XFEL)better, pallets beside the gangway (XFEL)


Utilities and Cabling

cable palletscable pallets 2 km2 kmpower supplies cables power supplies cables 6 km6 kmutility cables 3x1,5utility cables 3x1,5 6 km6 kmoptical optical fibrefibre 8 km8 kmhigh voltage cablehigh voltage cable 16 km16 kmdata cable, Ethernet, BLM, CANdata cable, Ethernet, BLM, CAN--BusBus 35 km35 kmcoax and advanced coax and advanced rfrf--cablescables 54 km54 kmmultimulti--conductor cableconductor cable 88 km 88 km

totaltotal 215 km215 km

man power for installation, tests,man power for installation, tests,electric enquiries and cablingelectric enquiries and cabling ≈≈ 49.500 h49.500 h


RF System / Modules

•• 5 acceleration modules installed5 acceleration modules installed•• 40 coupler warm and cold processed40 coupler warm and cold processed•• 40 cavities tuned40 cavities tuned•• 3dB attenuator for ACC3, cavity 7 because of quenches at 17 MV/m3dB attenuator for ACC3, cavity 7 because of quenches at 17 MV/m•• modules are ready for beam operationmodules are ready for beam operation

•• Temporary:Temporary:1) HPP processing for ACC1, cavity 7 prepared (1 MW, 200 1) HPP processing for ACC1, cavity 7 prepared (1 MW, 200 µµss))2) repetition of dark current measurement downstream ACC62) repetition of dark current measurement downstream ACC6


RF System / Waveguide

Waveguide system for ACC #1 Waveguide system for ACC #1 -- #5 installed and operated#5 installed and operated

5 MW 5 MW phasephase shiftershifter Gas Gas tighttight directionaldirectional couplerscouplers

ACC 5ACC 5ACC 4ACC 4


RF System / Waveguides ACC 1 - 5

Waveguide piecesWaveguide pieces 217 / 338 m217 / 338 mH H -- arcsarcs 7979E E –– arcsarcs 107107BellowsBellows 6666HYBRID CouplerHYBRID Coupler 3131CirculatorsCirculators 333333--stub tunerstub tuner 3333Absorber, air coolingAbsorber, air cooling 4545Absorber, water coolingAbsorber, water cooling 2525Directional couplerDirectional coupler 55

man power for installation, tests,man power for installation, tests,electric enquiries and cablingelectric enquiries and cabling ≈≈ 2000 h (since 2002)2000 h (since 2002)


RF System / Modulators

•• modulators and klystrons ready for operation up to 5 Hzmodulators and klystrons ready for operation up to 5 Hz•• waveguides installed, tested and partially operated (injector ruwaveguides installed, tested and partially operated (injector run)n)•• Technical inspection agency tested TTF personal interlock Technical inspection agency tested TTF personal interlock

conclusion: beam operation allowedconclusion: beam operation allowedProblem: beam permission logic of Problem: beam permission logic of rfrf--klystron units 4 and 5 are not klystron units 4 and 5 are not redundantredundant

•• Consequence: no Consequence: no rfrf--operation of both klystrons / modulesoperation of both klystrons / modules


Survey and Alignment VUV FEL

Horizontale seitliche Ablagen (quer zum Strahl) [mm]Zustand vor Feinjustierung

-5

-4

-3

-2

-1

0

1

2

-20 0 20 40 60 80 100 120 140 160 180 200 220 240 260 280

Station [m]

Abl

agen

[mm

]

horizontale Querabweichung

kubische Splinefunktion (querablagen)

Coll2BC

2

ACC

3.1

A CC

4.1

Q9AC

C6.1

B2ACC

7.2

PBA

Q92BYP Q

93BYP

A CC

5.1

ACC

2.1

S10BYP

Illustration of alignment strategy:Illustration of alignment strategy:1) raw data1) raw data2) straight line approximated with best fit (2) straight line approximated with best fit (splinespline function)function)3) alignment relative to the best fit3) alignment relative to the best fit



Seitliche Ablagen zur Ausgleichfunktion (Quer zum Strahl) [mm]

-5

-4

-3

-2

-1

0

1

2

3

4

5

-10 0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180 190 200 210 220 230 240 250 260 270 280

Station [m]

Abl

agen

[mm

]

horizontale Querabweichung Februar 2004 vorJustierung

horizontale Querabweichung August 2004 (nachJustierung von Gun bis ACC 5, von ACC5 bisDump noch nicht feinjustiert)

left sideleft side

right sideright side

Deviation / offset of components in horizontal directionDeviation / offset of components in horizontal direction

⇒⇒ quadrupolesquadrupoles: small offsets to the best fit: small offsets to the best fit

end ACC5end ACC5



downdown

upup

Deviation / offset of components in vertical directionDeviation / offset of components in vertical directionHöhenablagen [mm]

-5

-4

-3

-2

-1

0

1

2

3

4

5

-10 0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180 190 200 210 220 230 240 250 260 270 280

Station [m]

Abl

agen

[mm

]

Hoehenablagen zur Ausgleichsfunktion,Februar 2004 vor Justierung

Höhenabweichung August 2004 (nachJustierung von Gun bis ACC 5, von ACC5 bisDump noch nicht feinjustiert)

end ACC5end ACC5

quadrupolesquadrupoles: small offsets to the best fit, except Q92BYP,Q93BYP: small offsets to the best fit, except Q92BYP,Q93BYP


Vacuum

BC 3 BC 2

99.99 % of vacuum chambers particle free installed and leak test99.99 % of vacuum chambers particle free installed and leak testededexcept one chamber behind ACC6 due to dark current experimentexcept one chamber behind ACC6 due to dark current experiment

ultra high vacuum in each sectionultra high vacuum in each section


Vacuum / TTF2 Gallery


Required Diagnostic

•• Charge MonitorsCharge Monitors–– ToroidsToroids: available: available

•• ScreensScreens–– OTR’sOTR’s installed, have to be commissioned installed, have to be commissioned

•• BPMsBPMs at special Positionsat special Positions–– all all BPMsBPMs installed and cabledinstalled and cabled–– but only 20 Read out Electronics availablebut only 20 Read out Electronics available-- BPMsBPMs at „Strategic Positions“at „Strategic Positions“

-- Injector: Full InstrumentationInjector: Full Instrumentation-- BC3: 2 BC3: 2 BPMsBPMs UpUp-- and Downstreamand Downstream-- ACC6 & ACC7: 1 BPM eachACC6 & ACC7: 1 BPM each-- Bypass Line: 2 Bypass Line: 2 BPMsBPMs-- Dump Line: 1 BPMDump Line: 1 BPM

–– Some Electronics might „travel“ during machine Some Electronics might „travel“ during machine commissioningcommissioning

--> Should be possible to detect beam where required> Should be possible to detect beam where required


Required BPM Electronic - Delayed

New Generation of BPM ElectronicsNew Generation of BPM Electronicsavailable by End of 2004 (available by End of 2004 (First Boards maybe in NovemberFirst Boards maybe in November).).

Problem: delivery of milled Problem: delivery of milled rfrf--housing and availability of housing and availability of rfrf --connectorsconnectors


Required Photon Beam Diagnostics

Spectrum: spikes ⇒ modes, pulse lengthwavelength ⇒ electron energytuning for experimental needs

Intensity: SASE optimisation, statistics,saturation, normalisation

Position & Profile: stabilisation and focusing

Timing: time resolved experiments(pump-probe ⇒ S.Düsterer)

Coherence: focusing, imaging


Required Photon Beam DiagnosticsDetector Unit F2

(apertures, detectors, mirror)

Intensity + beam profile+ diffraction (coherence)

+deflection into spectrometer

Detector Unit F1(apertures + detectors)

Intensity + beam profile+ double slits (coherence)

Grazing incidencegrating spectrometerwith intensified CCD

Single shot spectrum

“Octopus”(MCPs + photodiodes)

Intensity + beam profile

FEL

electrons Beamline forsynchrotron radiationfrom dipole magnet

pulse “arrival time” (evaluated with streak

camera in exp. hall)


Required Photon Beam Diagnostics

Intensified CCD(minimum gate 5ns)

Spectrometer(grating + premirror)

collaboration with / on loan from INFM Padova

piezo actuatedentrance slit

Wavelength range: 6 - 45 nm

Resolution: ∆λ/λ ≈ 10-3

Photon beam line installed, tested and will be commissioned


Additional Diagnostics

•• combined OTR and Wire scanner monitorscombined OTR and Wire scanner monitors•• special OTR monitors in bunch compressorsspecial OTR monitors in bunch compressors•• Diffraction Radiation (DR) radiatorDiffraction Radiation (DR) radiator•• resistive sensorsresistive sensors•• phase monitorsphase monitors•• ZeuthenZeuthen--HasylabHasylab wire scannerwire scanner•• BLM system with BLM system with ScintillatorScintillator / Optical / Optical fibrefibre•• bunch length measurement systemsbunch length measurement systems•• pick up monitors, ...pick up monitors, ...

most of the systems operationalmost of the systems operationalsystems more relevant for optimising beam parameterssystems more relevant for optimising beam parameters


Interlock

technical protection system:technical protection system:

Beam Inhibit System BIS was partially tested in the laboratory,Beam Inhibit System BIS was partially tested in the laboratory,installed in hall 3 and is prepared for commissioninginstalled in hall 3 and is prepared for commissioning

BIS hardware (SPS, ...) connected to power supplies, gun laser, BIS hardware (SPS, ...) connected to power supplies, gun laser, ……BIS server commissioned without beam operation (simulated signalBIS server commissioned without beam operation (simulated signals)s)

final checks will be done using personal interlock (closed tunnefinal checks will be done using personal interlock (closed tunnel)l)and different beam operation modesand different beam operation modes

Currently, Currently, stand by modus of stand by modus of interlock systeminterlock system


Interlocktechnical protection system:technical protection system:

9 9 screensscreens (pneumatic)(pneumatic) 18 logic contacts18 logic contacts1818 OTR screensOTR screens 84 logic contacts84 logic contacts2525 vacuum valvesvacuum valves 140 logic contacts140 logic contacts217 power supplies217 power supplies 217 logic contacts217 logic contactsfast protection systemfast protection system 160 logic contacts160 logic contacts4 collimators4 collimators 20 logic contacts20 logic contactstotaltotal > 600 logic contacts (5 ms time> 600 logic contacts (5 ms time--scale)scale)

end switches of moveable collimators need a setup change, butend switches of moveable collimators need a setup change, butcauses no delay of beam operationcauses no delay of beam operation

personal interlock system:personal interlock system:●● emergency stop button system in operationemergency stop button system in operation● tunnel● tunnel--door interlock readydoor interlock ready● beam permission logic for klystron 4 and 5 fault● beam permission logic for klystron 4 and 5 fault


TTF2: Milestones (11’2003)TTF2: Milestones (11’2003)

Task Milestone Milestone date

Commissioning of accelerating modules ACC 3,4,5 incl.

proof of max. gradient

Modules commissioned

15.9.2003

Vacuum system entire machine Vacuum closed 12. 2. 2004

Commissioning injectorup to ACC2incl. commissioning modules

ACC1 and ACC2

First beam up to ACC2

21. 4. 2004

Installation of remaining components

all installations completed

26. 8. 2004

Commissioning entire machine,except for collimator and undulator

First beam through bypass into dump

16. 9. 2004

Commissioning of collimator and undulator beamline

First beam through undulator into dump

30. 9. 2004

Commissioning photon diagnostics in the tunnel

Beam intensity and spectrum of spontaneous radiation


Summary / Outlook (08’2004)Summary / Outlook (08’2004)

+ all required components are installed and operational+ all required components are installed and operational

+ TTF2 shift operation started 1st of September+ TTF2 shift operation started 1st of September

+ beam operation up to the dump can start soon+ beam operation up to the dump can start soon

+ We reached the milestones within a delay of 1 + We reached the milestones within a delay of 1 -- 2 weeks2 weeks

Thanks to all colleagues for their hard and dedicated workThanks to all colleagues for their hard and dedicated work

ttf2: status of construction work -...

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