# Presentation: 804450

## LARP – Trip to CERN

- Purpose
- Contacts
- Findings
- Comments in context of Beam Commissioning

- LARP Collaboration / E. Harms

## Purpose

**U.S. commissioning work/CERN visits to U.S.**
**Follow-up meetings to Chamonix discussions**
**Chamonix workshop Summing-Up**
**http://ab-div.web.cern.ch/ab-div/Conferences/Chamonix/2004/SciProgramme/sciprog.html#Anchor-Summary-6296**
**Close-up look at LHC status**

- LARP Collaboration / E. Harms

## Contacts

**Roger Bailey – LHC commissioning**
**Gianluigi Arduini – TI8 commissioning, SPS tests**
**Mike Lamont – Sector test**
**Hermann Schmickler – Instrumentation**
**Rudiger Schmidt – Machine protection**
**Steve Myers - Generalities**

- LARP Collaboration / E. Harms

## Findings/Results – Summing Up

- Lots of information in 3 hours
- Greater appreciation for magnitude of LHC
- Injector issues
- Early/intermediate beam parameters met
- SPS longitudinal impedance
- Kicker thermal heating
- Beam blow-up due to kicker impedance
- LEIR in 2005

- LARP Collaboration / E. Harms

## Findings/Results – Summing Up

- Commissioning through 2007
- TT40 largely successful
- TI8 in September/October 2004
- Injection test in 2006 (following 18-month SPS stop)
- LHC commissioning in Feb/Mar 2007
- Beam-induced quenching as part of Sector test

- LARP Collaboration / E. Harms

## Findings/Results – Summing Up

- Running in the LHC
- Instrumentation vital for machine protection (16-hour quench recovery)
- Careful commissioning choreography
- Beam dumps
- Orbits
- Collimation
- Beam loss
- Year 1 (2009?)
- 16-week shutdown
- 4-week checkout
- 4 X 1010 protons/bunch, 25 ns spacing, 1033 luminosity

- LARP Collaboration / E. Harms

## Findings/Results – Summing Up

- LHC Operation from the CCC
- Single Control Room
- Expanded PCR (Prevessin site)
- All operations under one roof
- On-line in 2006

- LARP Collaboration / E. Harms

## Findings/Results – Roger Bailey 

- 6-8 week visits by U.S. scientists beneficial
- Up to 8-week visits by CERN staff  - ditto
- September 2004 busy, interesting time for visitors to CERN

- LARP Collaboration / E. Harms

## Findings/Results – Mike Lamont 

- Sector Test coordinator in May 2006
- Broad scope outlined, details to be worked out
- Remote operations

- LARP Collaboration / E. Harms

## Findings/Results – Gianluigi Arduini 

- SPS Machine Development coordinator
- PS to SPS injection matching
- 10-20% transverse blow-up at present
- help is welcome
- TI8 commissioning
- 2 weekends in September, October 2004
- Collimator testing
- Beam Scrubbing
- Additional week just added
- 2004 is critical year

- LARP Collaboration / E. Harms

## Findings/Results – Gianluigi Arduini 

- LARP Collaboration / E. Harms

## Findings/Results – Rudiger Schmidt 

- Machine Protection
- LHC permit loop overview
- Automation of hardware tests might need help
- Post-mortem systems needs specification
- Operational model of collimation – possible help

- LARP Collaboration / E. Harms

## U. S.  participation

- This fall would be prime visit time
- Sense of CERN
- Participate in
- SPS MD for LHC
- TI8 commissioning
- All machines off in 2005
- Cold Check out and Sector tests are other critical times (2006)
- Encourage CERN visitors to Tevatron and RHIC
- Where else can U.S. contribute for mutual benefit?
- Machine protection
- Post-mortem
- Modeling

- LARP Collaboration / E. Harms

## Fermilab  participation

- Late summer through October would be prime visit time
- Up to 3 people 3-4 weeks each for SPS/TI8 work
- All machines off in 2005
- Planning, identify contributions
- Cold Check out
- Get a feel for LHC, controls system
- Regular, growing presence
- Sector test
- Build on Cold Check out experience
- Encourage CERN visitors
- Tevatron and RHIC day-to-day running

- LARP Collaboration / E. Harms

## Fermilab  participation - Budget

|  | FY04 | FY05 | FY06 | Comments |
| --- | --- | --- | --- | --- |
| Planning visit to CERN | 3.25 | 3.25 | 3.25 | Each year - 1 FTE, 1 week |
| Tasking/Scheduling | 3.25 | 3.25 | 3.25 | Each year - 1 FTE, 1 week |
| SPS Machine Development | 13 | 13 | 13 | Each year - 1 FTE, 1 month |
| TI8 commissioning | 6.5 | 19.5 |  | FY ’04 – 1 FTE, 2 weeks
FY ’05 – 2 FTE’s 3 weeks |
| Cold checkout and preparation |  | 52 | 104 | FY ’05 - 0.75 FTE
FY ’06 – 1 FTE |
| Sector test |  |  | 117 | FY ’06 - 0.9 FTE |
| Total ($k) | 26 | 91 | 240.5 |  |

- Fermilab/LARP proposed budget through FY 2006

- LARP Collaboration / E. Harms

## Fermilab  participation - Schedule

- FY ’04
- SPS Machine Development - September
- TI8 commissioning - September
- Collimator tests - September
- Identify areas of need/expertise
- coordination
- FY ’05
- Complete SPS work begun in FY ’04
- Regular and incrementally increasing presence in preparation for and as Cold Checkout commences
- Solidify, begin to address, specific areas of focus
- Coordination
-  FY ’06
- Continued presence for cold check out
- Sector test
- Dedicated effort on foci identified above
- Coordination geared towards full-time presence during Beam Commissioning

- LARP Collaboration / E. Harms

## Fermilab  participation - deliverables

- FY ’04 (.3 FTE)
- Injection mismatch expertise
- Beam line commissioning expertise
- FY ’05 (1.12 FTE)
- Participation plan and schedule for Beam Commissioning
-  FY ’06 (2.1 FTE)
- Begin execution of FY’05 deliverable
- Possible areas of focus
- Machine protection
- Post-mortem
- Operational model(s)
- Commissioning choreography
- Software support

- LARP Collaboration / E. Harms

## Summary

- LHC Beam Commissioning activities commence this summer through October
- LARP should be there
- Fermilab has willing people
- No beam time in 2005
- LARP should identify areas of expertise for Cold checkout and Beam Commissioning
- Fermilab is interested in a growing presence
- Cold Checkout and Sector testing in 2006 are golden opportunities to get pre-beam hands-on experience at CERN
- Coordination between AP and BC activities

- LARP Collaboration / E. Harms