During this Long Injector MD and in parallel, a new PU configuration for the PS radial loop will be put in operation as recommended at the last MSWG held on 09/10/09 (H. Damerau and S. Aumon)
- Tuesday 03/11 (08:00 - 09:00) - Change supercycles in the PS and SPS (OP). The SPS supercycle will be the LHC nominal one at 450 GeV/c (some references can be found at https://ab-mgt-md-users.web.cern.ch/ab-mgt-md-users/2009/MDCycles/SomeReferencesForLHCNominalCycle/Ref.htm).
- SPS supercycle: LHC_4Inj_FB10860_FT500_2009_V1 (18 BP = 21.6 s)
- RF MMI target = LHC25NS
- Timing sequence in the CBCM = LHC1-0/1/3(1)
Beam conditions: SPS user = LHC1, PS user = LHC25 (or TSTLHC75, i.e. the 75 ns beam in 1 batch in the PS, or LHC75, i.e. the 50 ns beam in 1 batch in the PS) and PSB user = LHC25A&B (or
LHC75B**, i.e. the 75 ns beam in 1 batch in the PSB, or LHC75A, i.e. the 50 ns beam in 1 batch in the PSB)# batches (bunches) = 1-4 (72 or 36 or 24)
Nb ~ 1.3E11 p/b
Transverse emit
tances: e* < 3 microm Longitudinal emittance: eL* = 0.35 eVs- Tuesday 03/11 (09:00 - 21:00) - Ecloud studies (studies of the 3 coated MBB magnets) with 25 ns beam + Check 50 ns and 75 ns beams (in particular the MKDV outgassing/heating and ZS ion trap outgassing) + Longitudinal coupled-bunch instability at 450 GeV/c and BQM tuning
(E. Shaposhnikova and N. Mounet and E. Metral)- Tuesday 03/11 (21:00 - 22:00) - Change supercycles in the PS and SPS (OP). The SPS supercycle will be the proton 120 GeV/c coastable (some references can be found at https://ab-mgt-md-users.web.cern.ch/ab-mgt-md-users/2009/MDCycles/SomeReferencesForpCoastAt120GeV/Ref.htm)
- SPS supercycle:
MD_26_120_L18000_2009_V1 (15 BP = 18 s)- RF MMI target = LHCMONO
- Timing sequence in the CBCM = LHC2-0/1/2
Beam conditions: PS user = LHCINDIV and PSB user = LHCINDIV
#bunches = up to 4 (i.e. 4 PSB rings) and up to 4 batches
Nb ~ 1E11 p/b
Transverse emit
tances: e* < 3 micromLongitudinal emittance:
eL* = 0.35 eVs- Tuesday 03/11 (22:00) to Wednesday 04/11 (05:00)
- BI studies: FBCT and PLL (R. Steinhagen)- Wednesday 04/11 (05:00 - 23:00) - UA9 (Crystal) (W. Scandale).
If the PS MD of Thursday 29/10/09 (Generation of LHC beams in the PS without switching the beam control) is not finished, some work in parallel in the PS will take place, while delivering beam for UA9- Wednesday 04/11 (23:00 - 24:00) - Change supercycles in the PS and SPS (OP). The SPS supercycle will be the LHC nominal one at 450 GeV/c (see above)
- Thursday 05/11 (00:00 - 07:00) - Instability in double RF system for SPS and LHC (E. Shaposhnikova)
- Thursday 05/11 (07:00 - 08:00) - Recovery from MD (OP)
- Change of supercycle
- Send beam to physics at 08:00
Author: Elias Métral - AB/ABP
Last update:
Tuesday, November 03, 2009 09:48:08 PM
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