LS1 general planning and strategy for LHC, LHC...

EN

LS1 general planning and strategy for LHC, LHC injectors

LHC Performance Workshop

Chamonix 2012 K. Foraz

Feb. 8th 2012 K. Foraz - LHC Performance Workshop 2012 1

EN Outline


• General frame

• Injectors

• LHC machine : Main activities and risks

• Organization

• Conclusion

• General frame

• Injectors


• Organization

• Conclusion

EN Draft 10 years plan (27/10/11)


2012 2013 2014 2015 2016

2017 2018 2019 2020 2021

Operation period 1 (OP1)

Long Shutdown 1 (LS1)

• Machine : Splices consolidation… • ATLAS: - Consolidation and new forward beam pipes • ALICE: detector completion • CMS:FWD muons upgrade + Consolidation & infrastructure

improvements • LHCb: consolidations

• Machine: Collimation & prepare for crab cavities & RF cryo system • ATLAS: new pixel detect. - detect. for ultimate luminosity. • ALICE - Inner vertex system upgrade • CMS - New Pixel. New HCAL Photodetectors. Completion of FWD muons upgrade • LHCb - full trigger upgrade, new vertex detector etc.

Long Shutdown 2 (LS2)



OP2

LINAC 4 connection ?

EN LS1 - Goal


Take all measures for a safe and reliable operation of LHC @ 7TeV/beam

Full maintenance Consolidation & upgrade

LHC machine & experiments

Injectors

EN LS1 - Time window


• 20 months from Beam OFF to Beam ON

– Actual total duration agreed between experiments and machine

• LHC machine: 20 months

• ALICE: 12 months (up to 15 months)

• ATLAS: 15 months (but from April 2013)

• CMS: 20 months

• LHCb: 12 months

Marzio: “ LHC experiments upgrade & maintenance”

EN Requests Approval


• Meetings being held with stakeholders to understand Goal of activities Time key drivers Support needed

• For accelerator complex: database of requests

is being filled : LHC and injectors

To detect conflicts/overloads & to decide what is compulsory, what we can afford & what we have to postpone to LS2

Priorities set for LHC machine

– P1: Beam to 6.5-7TeV, nominal performance – P2: Reliable operation – P3: CERN approved projects – P4: no CERN approved projects

• Mauro : “EN-CV upgrade & consolidation” • Francois: “EN-EL upgrade & consolidation” • Erk : “RF upgrade program in LHC injectors

and LHC machine“

EN Outline


• General frame

• Injectors


• Organization

• Conclusion

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LDE SPS PS PS Booster

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General Shutdown works: ABT, Magnets, RP, lifts…


Injectors


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dia

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Survey: Tilt & vertical - Quads

Survey

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ey

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Survey: Alignment maintenance

Survey: Vertical & Radial measurements & Alignment

• “Normal” Xmas shutdown (*2) • Survey: measurements, til, alignment • SPS:

• EL: clear unused cables & irradiated cables in SPS • RF upgrades • Power converter consolidation • Other groups works Courtesy D. McFarlane

V. Chohan

Will be detailed during

IEFC workshop

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Survey

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Renovation of Vacuum control system



New access system commissioning

• PS & PS booster • Renovation of vacuum control system • Cooling & ventilation maintenance and renovation • RF maintenance & upgrade • New access system • Other groups works • Interlock

Interlck

Interlck

Interlck

Interlck

Courtesy D. McFarlane V. Chohan


EN Injectors access system


Rui: “Access strategy in the accelerator complex and experimental area”

Courtesy E. Sanchez

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Survey

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Cold Checkout & Start-up

Renovation of Vacuum control system



Interlck

Interlck

Interlck

Interlck

New access system commissioning

Cold Checkout & Start-up

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up

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TBC

• Early 2014 :Cold check-out and Start up • LINAC3 : set up of Argon and Xenon beam • LINAC4 commissioning • CTF operational – dates TBC • HI-ISOLDE: Cooling & Ventilation works • AD & ELENA: AD hall preparation for ELENA

Courtesy D. McFarlane V. Chohan

EN Outline


• General frame

• Injectors


• Organization

• Conclusion

EN LHC machine – Time key drivers


• Time key drivers in LHC machine

– Superconducting circuits consolidation

– Radiation To Electronics R2E

– Maintenance

– …. And many other activities (already > 100 entries in the db for LHC machine)

EN One typical sector


Powering and ELQA tests prior to Warm-up (4+4 d) • qualify circuits except mains to 7TeV • fault localization.. • CSCM (1 sector)

Warm-up: incl. vacuum leak tests at 80K (1wk) to localize leaks

Maintenance & consolidation

Preparation for & cool-down

Powering tests

Mirko: “Powering tests before LHC warm-up: What is new from Chamonix 2011? ”

S12 P1 S23 P2 S34 P3 S45 P4 S56 P5 S67 P6 S78 P7 S81 P8

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EN Splices


PT PT PT PT

PT PT PT PT

Powering Tests

Powering Tests Powering

Tests Powering Tests

Powering Tests

Powering Tests


Tests

Powering Tests Splices

Warm-up Preparation for cool-down

Cool-down

Splices Splices

Splices Splices

Splices Splices

Splices Splices

Jean-Philippe : “LHC consolidation of the

superconducting circuits ”

-> 10K

CSCM CSCM preparation

Warm-up Warm-up Warm-up Warm-up

Warm-up Warm-up Warm-up

Warm-up

Cool-down

Cool-down Cool-down

Cool-down

Cool-down

Cool-down

Cool-down Cool-down


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EN Other superconducting circuits


PT PT PT PT

PT PT PT PT

Splices Splices

Splices Splices

Splices Splices

Splices Splices

Magnets exchange

DN200

Consolidation of SAM

Inner triplets braid Connection Cryostat

Y lines

-> 10K




Warm-up

Powering Tests



Powering Tests

Powering Tests


Tests

Cool-down

Cool-down Cool-down

Cool-down

Cool-down

Cool-down

Cool-down Cool-down


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EN Maintenance


PT PT PT PT

PT PT PT PT

Splices Splices

Splices Splices

Splices Splices

Splices Splices

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Cryogenics : 18 weeks per cryoplant + Maintenance of all the equipment: CV, EL, RF…, mainly in service areas

-> 10K




Warm-up

Powering Tests



Powering Tests

Powering Tests


Tests

Cool-down

Cool-down Cool-down

Cool-down

Cool-down

Cool-down

Cool-down Cool-down

EN R2E mitigation measures


• Detailed & graphical schedules ready, except P7 in progress

Courtesy M. Barberan

Anne-Laure : “R2E strategy and activities during LS1 ”


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EN

-> 10K




Warm-up

R2E mitigation measures


PT PT PT PT

PT PT PT PT

Splices Splices

Splices Splices

Splices Splices

Splices Splices



Cool-down

R2E

R2

E

R2

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Just in time for CD of s.12 Delay by 2 wks CD of S.81

R2

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Delay Cool-down of 56 (1st sector) Delay Powering tests of 56 But 1 month marginw.r.t s45

Powering Tests



Powering Tests

Powering Tests


Tests

Cool-down

Cool-down Cool-down

Cool-down

Cool-down

Cool-down

Cool-down Cool-down

P7

to

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EN Skeleton schedule – Physics to physics


PT PT PT PT

PT PT PT PT

Splices Splices

Splices Splices

Splices Splices

Splices Splices

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Cold check-out & Beam Commissioning

Physics 1 week stand-by 2014-2015

Ezio : What is the maximum reasonable energy

-> 10K




Warm-up

Powering Tests



Powering Tests

Powering Tests


Tests

Cool-down

Cool-down Cool-down

Cool-down

Cool-down

Cool-down

Cool-down Cool-down


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EN Risks (possible changes in schedule): IC trains




Cool-down

From installation experience, first 2 sectors took ~ 20% longer

PT PT PT PT

PT PT PT PT

Powering Tests



Powering Tests

Powering Tests


Tests

Splices Splices

Splices Splices

Splices Splices

Splices Splices

-> 10K




Warm-up

Cool-down

Cool-down Cool-down

Cool-down

Cool-down

Cool-down

Cool-down Cool-down

+ 20% +

20%

But leak detection and electrical tests at the end can reserve bad surprises in the last sectors…


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EN Risks (possible changes in schedule): R2E mitigation measures


-> 10K




Warm-up

PT PT PT PT

PT PT PT PT

Splices Splices

Splices Splices

Splices Splices

Splices Splices



Cool-down

R2E

R2

E

R2

E

R2

E Powering

Tests Powering Tests Powering

Tests

Powering Tests


Tests

Cool-down

Cool-down Cool-down

Cool-down

Powering Tests

Cool-down

Cool-down

Cool-down

Powering Tests

Cool-down

P7

to

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P1 & P5 are tight in schedule : Effect of 6 weeks delay

No direct impact on end dates but will delay the powering tests of 3rd and following sectors.

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Harwdware commissioning workload

6 weeks delay no delay


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EN Risk (possible changes in schedule): additional activities


PT PT PT PT

PT PT PT PT

Splices Splices

Splices Splices

Splices Splices

Splices Splices

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Cold check-out & Beam Commissioning

Physics

-> 10K




Warm-up

Powering Tests


Tests

Powering Tests

Powering Tests

Powering Tests

Powering Tests

Cool-down

Cool-down

Cool-down

Cool-down Cool-down

CSCM

Cool-down CSCM

Cool-down CSCM

Powering Tests

Cool-down CSCM

CSCM

CSCM CSCM CSCM

Additional activities, especially those requiring supports from other groups can disorganize the global schedule, and induce delays. CSCM tests in all sectors will cost around 4 weeks

EN Outline


• General frame

• Injectors


• Organization

• Conclusion

EN Organization


• Schedule & logistics – Lots’of work still to be done in matter of schedule &

logistics for all the other activities w.r.t. skeleton schedule

• Preparation – ECR have to be written prior to works

– Modification of the envelope of your equipment ICL

– DIMR

– Materials have to be ready in due time…..This has often induced delays !!!

• Follow-up – Weekly coordination and scheduling meeting

Reiner : “QPS upgrade and machine protection during LS1 ” Miguel : “Vacuum upgrade” Laurent: “Cryogenics system: strategy to achieve nominal performance and reliable operation “

EN Conclusions


• Analysis of requests well advanced (LHC & experiments, injectors)

– w.r.t. priorities & resources & time & interaction between groups

– New requests will be scrutinized, especially the support form overloaded groups (VSC, EL, CV)

• “Skeleton” schedules for LHC machine & injectors ready

• Workload is huge and the schedule is tight

• Worksites have to be well prepared. Please do not forget layout, integration & safety

LS1 general planning and strategy for LHC, LHC...

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