REX RF 320 User Manual download pdf

Minutes of the Booster Supervisor Meeting held on 08.05.2012

Present: A. Findlay, G. Kruk, A. Lombardi, B. Mikulec, E. Ovalle, R. Rumolo, J. L. Sanchez Alvarez, R.

Scrivens, J. Tan, R. Wegner

1. General

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2. Linac2 (from Richard)

R.Scrivens →A.Lombardi (24/04->01/05)

Technical stop

All work completed

Beam could be restarted a couple of hours ahead of the schedule (i.e. about 18:00)

Beam from the source had an intensity dip during the pulse. But running higher gas flow and longer

pulses on ZERO cycles, the source was retrained to a good condition. The source gas flow was reduced

further during the week.

On Saturday there were make radiation alarms, with the intensity fluctuating. This was with very high

intensity on the Linac, but indeed the radiation was abnormal and fluctuating. When checking the

machine the radiation had returned to the normal low level and it was not followed any more.

With some experimental tuning, the LHC50 intensity out of the PSB could be improved. Should be tested

more completely on the booster side.

MD: LTB.QFW30+QDW40

R Scrivens, 27/04/2012

Using the beam on the LHC50_DB_A user, which at present in the production beam for LHC, the

quadrupoles in the LTB line were tuned empirically.

Only the beam intensity out of the PSB was taken (no emittance measurements). The user was present 2

times in the supercycle, and the average was taken of these two cycles.

The results are shown in Figure 1, they show that at least 10% can be gained on the LHC50 ns cycle by

adjusting this quadrupole.

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Summary of Contents

Page 1 - 2. Linac2 (from Richard)

Minutes of the Booster Supervisor Meeting held on 08.05.2012 Present: A. Findlay, G. Kruk, A. Lombardi, B. Mikulec, E. Ovalle, R. Rumolo, J. L. San

Page 2 - 3. PS Booster (from Alan)

Figure 1. Intensity out of the PSB, as a function of the quadrupole setting. A.Lombardi → R. Wegner The Linac2 has been running quite well last

Page 3

Wednesday 2/5/12 A 1 hour intervention by the BI team to replace the head amplifiers for the pick-ups in BTP10 & BTP30 solved the bad acquisition

Page 4

the CCC and could see that, for an unknown reason, there were a number of parameters that were not used in the SFTPRO cycle that showed up in the Onl

Page 5

At 10H00 the Linac Sup was called again due to intensity fluctuations returning, she suspected LI.CBU02 and retuned onsite to investigate. The investi

Page 6 - E.Piselli → P.Fernier

4. Isolde (from Emiliano) E.Piselli → P.Fernier HRS: Beam to users on Tuesday. Power glitch early in the morning…and 2 vacuum glitch in the target s

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