Workshop Chamonix XIV

Session

Session 1 - Beam Commissioning

SES01

17 Jan 2005, 09:00

503/1-001 - Council Chamber (CERN)

Conveners

Session 1 - Beam Commissioning

• Mike (Chairman) Lamont (AB-OP)
• Eugenia (Scientific Secretary) Hatziangeli (AB-CO)

41. Overall Beam Commissioning Strategy

Mike Lamont (LFC)

17/01/2005, 09:00

Effective commissioning of the LHC with beam will demand very good preparation; all concerned subsystems will need to be well-prepared and thoroughly tested before first beam. To clarify the demands on the systems involved the objectives of the commissioning phases are presented, along with an breakdown of the phases and the essential prerequisites for each. The nature of the...

52. Transfer and Injection

Dr Brennan Goddard (CERN)

17/01/2005, 09:40

Beam Commissioning

Based on the TI8 experience, the measures neeeded to reach the required state of readiness of TI 2 and TI 8 to deliver beam to the LHC during the commissioning phase are discussed. The main objectives for the performance of the transfer lines and injections at this stage of the LHC commissioning are outlined, and the impact of the lower demanded intensities on equipment and...

13. 450 GeV

Dr Paul Collier (CERN)

17/01/2005, 10:05

Beam Commissioning

oral

The objectives of this phase are enumerated. The key prerequisites for establishing circulating beam and the procedures involved are detailed. Given circulating beam,the essential checks, measurements and associated procedures are clearly established. The time required for, and the scheduling of, subsystem commissioning is discussed. The importance of injection scheduling,...

55. Ramping & Snapback

Dr Andrew Butterworth (CERN)

17/01/2005, 10:50

Beam Commissioning

The procedure for ramping the LHC is clearly defined with particular attention to power converters, RF and controls. The necessary pre-testing of all systems is detailed. Snapback will pose a challenge and the strategy for dealing with it during initial beam commissioning is revisited. Measurements and system commissioning to be performed during the ramp commissioning phase are...

43. Squeeze

Oliver BRÜNING (CERN)

17/01/2005, 11:15

Beam Commissioning

The procedure for squeezing the LHC is defined with attention to the squeeze duration, the variation in magnet currents and the resulting limitations. The potential variation in key beam parameters is quantified. The demands on essential sub-systems [feedback, instrumentation and controls] are made clear. The requisite movement of the collimators and TCDQ during the squeeze are detailed.

63. BDI

Hermann Schmickler (CERN)

17/01/2005, 11:40

Beam Commissioning

It is clear that proper functioning of the beam instrumentation is vital to effective commissioning. How the key instrumentation is to be commissioned is described including a description of measurements and tests to be perform with beam during the various commissioning phases. The demands on other systems [controls] are clearly stipulated. The procedures to be followed to ensure proper...