preparation for circulating beam - part ii collimators (40') oliver aberle o breakdown of tests...

Preparation for Circulating Beam - Part II

Collimators (40') Oliver Aberleo Breakdown of tests foreseen in preparation for beam

o Equipment folder: tests results, handling of non-conformities, performance below specs, machine as commissioned vs. machine as specified

o Piquet/Experts availability

With help and input from the members of the collimation team, especially fromAB / ATB: A. Masi, R. Chamizo,

ABP: T. Weiler, R. Assmann,OP: S. Redaelli,CO: M. Jonkers

TS/ ICC: J. CoupardTuesday 04 March 2008 1LTC Extended meeting

Tuesday 04 March 2008 2LTC Extended meeting

Related talks:

Session 3 - Possible injection into part of the machine, preparation for beam

Stopping the beam in a possible sector test (S. Redaelli)

Session 4 - Beam Plans for Accelerator Physics Systems

Collimators (R. Assmann)

Machine Protection (J. Uythoven)

Session 6 - Readiness of Controls

Collimator control (M. Jonker)

TCTVA.4R5.B2


Overview:

1. Status Production and Installation

2. Hardware Commissioning & Cold Checkout

3. HWC Procedure Defined and in MTF

4. Machine Protection Commissioning

5. Piquet/Experts availability

6. Summary


Overview:






6. Summary

Tuesday 04 March 2008 5

CERCA Production• All TCP and TCS collimators received, tested and installed.• All TCDI collimators received, tested and installed. Spares already received.• All TCT collimators received and tested. 9 (out of 30) collimators still to be installed.• Remaining production for 2008 installation (TCLP and TCS) or spares (TCP, TCS, TCT and TCLP).

LTC Extended meeting


CERN Production• In total 15 special collimators produced at CERN.• Last for initial installation will arrive in week 11.

Collimator Quantity AvailabilityTCDD #1 1 week 39TCAPA 4 week51TCAPB 2 week 5TCAPC 2 week 8TCTVB #1 1 week 5TCTVB #2 1 week 7TCTVB #3 1 week 9TCTVB #4 1 week 11TCLIA #1 1 week 13TCLIA #2 1 week 15Two-beam collimator

Passive Absorber(TCAPA)



Installation


• TCP, TCS and TCDI done.

• TCT and passive absorbers ready, last installation in week 12.

• First TCTVB in final bake-out, 3 more to finish.

• TDI in bake-out

• TCDD bake out launched.


Overview:






6. Summary


Hardware Commissioning & Cold Checkout

Collaborative effort between several teams and groups. RWA, LHC MAC 12/07


Source:

Tests and conditions stated in these documents



Deliverables• Outcome of the collimator hardware commissioning:

– Validation of single collimator, all relevant functionality– Settings and sensor readouts (position, temperature, switches,...) verified– Control of each collimator from CCC is declared “safe”– Machine protection functionality (without beam) partially established

• Cold checkout focused on:– Control an ensemble of collimators– Address timing and synchronization issues– Function-driven motion, “tracking” tests with other equipment– Establish full machine protection functionality without beam– Verify interfaces to other accelerator systems

• Beam loss monitors: configuration/acquisition of distributed system• Sequencer driven commands, machine modes• Verify logging of distributed systems (big data sets!)

– Consistency and sanity checks; global system status



Validation of single collimator, all relevant functionality


Validation of single collimator, acceptance up to installation


Validation of single collimator, manufacturing and operational data

The hardware commissioning of the collimators include all the tests that will be performed once the collimator is installed in the tunnel in order to validate their correct functioning. These include tests on infrastructure up to the base support, tests of the tunnel equipment, on the full system and with the collimator under vacuum.

Systems:TCL, TCLIA, TCLIB, TCLIM, TCT, TCTVB, TCLP, TCHSH, TCHSS, TCHSV, TCLA, TCAPx, TCP, TCSGRequirements:Commissioning 1 (C1, access needed): Collimator installed, cabling finished. Tests with cross check in tunnel (two teams).Commissioning 2 (C2, no access required): C1 + bake out terminated, under vacuum, water flow nominal. Remote tests (one team)Infrastructure:Power, light, Water cooling, Vacuum, Cabling, Collimator installed, Ethernet, GSM.


Hardware commissioning (HWC) COLLIMATORS

(ATB and Collimation project)


Planning provided by J. Coupard:

Related to:

-Bake out of sectors

-Access restrictions

-Water cooling

HWC


Planning provided by J. Coupard:

Commissioning 1 with access, commissioning 2 without access (if there are no problems)

HWC


HWC - Commissioning 1 (with access): 2 collimators per day / 2 teams- -Commissioning 2 (remote): 3 collimators per day / 1 teamsLast date: End of week 21


Overview:






6. Summary


HWC Procedure Defined and in MTF





Support commissioning without collimator (Later installations, plug and play design)

Files created during the commissioning:

Annex 1Test Summary Low Level Control System Collimators

Annex 2 LVDTs calibration messages list

Annex 3LVDTs Calibration Report

Annex 4LVDTs Calibration file

Annex 5LVDTs noise measurements

Annex 6Auto retraction Report

Annex 7Mechanical Play report

Annex 8Gap-Axes LVDTs comparison report

Annex 9Errors on the execution of a typical LHC motion profile




1.46 1.48 1.5 1.52 1.54 1.56 1.58 1.6 1.62 1.64 1.66

x 104

-10

-5

0Right Downstream Error (LVDT-Reference)

time(s)

mm

1.46 1.48 1.5 1.52 1.54 1.56 1.58 1.6 1.62 1.64 1.66

x 104

-0.05

0

0.05Reference Right Downstream

LHC Collimator 20 minutes Profiles Test Report

RWA, LHC MAC 12/07 23

HWC: Tracking Jaw PositionsSetting

Reading

50 mm

20 s

20 s

50 mm

Setting

Reading

10 mm

20 s

S. Redaelli


Results in Collimation Project Web


E. Veyrunes (web page) and R. Billen and C. Roderick (DB support)


Overview:






6. Summary


Machine Protection Commissioning

All machine protection functionality based on interlocks on position readings (redundancy).

Can be commissioned without beam.

Foreseen for March/April.



Overview:






6. Summary


Piquet/Experts availability


• No piquet service foreseen

• Expert telephone list

• Depending on problem:

1. Disable collimator

2. Minor intervention (remotely, expert tool)

3. Intervention in tunnel (Failure: Stepping motors, Read-out (switches, LVDT), roller screw;limited intervention, preventive maintenance and monitoring;Impact: Few hours up to 2 days)

4. Collimator exchange (Failure: Important vacuum or water leak, mechanical damage;exchange collimator; Impact: Several weeks downtime, RP, transport, vacuum and bake out involved)


Overview:






6. Summary


Summary


• Final installation in Week 17

• Transfer lines commissioned, to be finalized

• Point 5R commissioned (C1) with final procedure, special setup in Point 6 this week.

• Commissioning of sectors one by one is still feasible, but very tight

• Performance of phase 1 collimation system will by only assessed after the completion of the installation during the shut down 2008/09

• Piquet/Experts:-No Piquet service foreseen, first years of LHC operation will tell more-Experts phone list

More details: R. Assmann, Plan for Collimator Commissioning7/12/2007 - LHC MAC

preparation for circulating beam - part ii collimators (40') oliver aberle o breakdown of tests...

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