- LHC_4Inj_FB10860_FT500_2009_V1.csv => LHC 4 batches 3600 ms / batch (18 BP = 21.6 s).

- CBCM: CBCMInCatalog, Viewer, PulseStart, LHC1, PulseStop.

- CBCM timings and RF MMI Targets:

- LHC1 (= SPS user Timing): Picture 1, 2, 3, 4, 5 (RF MMI target = LHC25NS) and 6.

- Modifications required for the MD:

- Change accelerator mode for FT: no extraction.

- NORTH extraction off.

- MST/MSE girders retracted.

- Servo off.

- Switched off TT20 AUXPS.

- Procedure with LHC beams:

- The interlock threshold on the temperature of the MKE kickers should be ~ 90º C (it should be ~ 70º C when there are extractions) => No need to call Etienne Carlier anymore as it is done in SIS.

- During (the scrubbing run and) the LONG MDs with LHC beam the ZS are RETRACTED / HV to 0 kV (Mask NORTH_ZS_HV_OFF in SIS) / ION TRAPS ON (inform the ZS expert). The cooling circuit for the septa magnets (circuits 214, 414 and 614) should be switched OFF (by TI from the CCC). Block the fast vacuum valves OUT in the injection and extraction areas (LSS1, LSS2, LSS4 and LSS6) => Giovanna Vandoni (TE/VSC, 163269 => ~ 20 min) will take care of this (also after the MD to come back to the initial situation). The list of the 11 valves VVFA and VVFB to be blocked during the MD are:

BA 1 :  VVFA 11901

BA 2 :  VVFA 21701, VVFB 21877, VVFB 21802

BA 4 : VVFA 41638

BA 6 / TT 60 : VVFA 610213, VVFA 61957, VVFA 61637, VVFA 61460, VVFB 61802, VVFB 61877

- The magnets with the e-cloud monitors are 4 dipoles: MDHW51832, 51836, 51838, 51853, all with 0.12 T (MDHW51832 with 25 A). In addition, there is a C-magnet (MDPH51753 with 28.5 A, in series with 754 to compensate) which contains a sample which can be inserted and removed. They should be masked in the SIS when they are ON.

 

Author: Elias Métral - AB/ABP
Last update: Tuesday, November 03, 2009 09:32:47 AM
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