Week 41 -
Floating SPS MD
Wednesday to Friday 12-14/10/2011 in parallel with LHC
operation (24h + 24h + 10h)
Wednesday 08h00 - Wednesday 20h00
Supercycle:
fully dedicated MD (12 [I-LHC-SU + ZERO] PS cycles + 4 ZERO for filling=> 12*3bp
+ 4bp = 40 basic periods)
MD title:
Preparation to ions for LHC
Beam conditions:
Test on long flat bottom ion cycle
Cycle:
LEIR user = NOMINAL
PS user = I-LHC_SU
SPS user = LHCION1
RF MMI target =
Contact Person: T. Bohl, D. Manglunki, P.
Baudrenghien, U. Wehrle, W. Höfle
Additional remarks:
Wednesday 20h00 - 21h00
MD title:
Switch to
the coastable supercycle
Beam conditions:
single nominal LHC bunch
Cycle:
MD_26_120_18000_2009_V1
(15bp)
Contact People: BE/OP, BE/RF
Additional remarks:
Wednesday 21h00 - Thursday 07h00
Supercycle:
fully dedicated MD (15bp)
MD title: Collimator studies (single
pass and BPM button mock-up) + vacuum
degassing measurements of jaws movements
Beam conditions:
single bunch on pulsed cycle. Coast at 120 GeV/c, if requested.
Injection of 12 bunches with 25ns spacing under request (planned between 5:00
and 7:00am)
Cycle:
MD_26_120_18000_2009_V1
(15bp)
PSB user = LHCINDIV:LHCINDIV or LHC_A:LHC25_DB_A_PSB (only ring
3, 12 bunches)
PS user = LHCINDIV:LHCINDIV or MD6:LHC25
SPS user =
LHCMD1 (pulsed), COAST1 (coast)
RF MMI target = MD1, LHCMD1
Contact People: D. Wollman, G. Bregliozzi, et al.
Additional remarks:
Thursday 07h00 - 08h00
MD title:
Switch to
the coastable supercycle @270 GeV/c
Beam conditions:
single nominal LHC bunch
Cycle:
MD_25.92_55_270_2009_V1
(26bp)
Contact People: BE/OP, BE/RF
Additional remarks:
Thursday 08h00 - Friday 08h00
Dedicated physics run:
UA9
Beam conditions:
single bunch until 16:00, then 48 bunches with 25ns spacing at 270 GeV/c
Cycle:
MD_25.92_55_270_2009_V1
(26bp)
PSB user = LHCINDIV:LHCINDIV or LHC_A:LHC25_DB_A_PSB
PS user = LHCINDIV:LHCINDIV or
MD6:LHC25
SPS user =
LHCMD2 (pulsed), COAST2 (coast)
RF MMI target = MD1 or LHCMD1
Contact Person: W. Scandale
Additional remarks:
The following part of the MD block IS confirmed and will take place in parallel with an LHC MD
Friday 08h00 - Friday 17h00
Supercycle:
total 41bp, made of
one CNGS + one operational
cycle LHC 25ns for injection into LHC + one low gamma transition optics cycle
for 25ns beam to be used for SPS MD
MD title: Optimization of the 25ns beam on
Q20 optics
and direct comparison with operational Q26
Beam conditions:
up to 4 batches of nominal 25ns LHC beam (1.2e11 ppb)
Cycle:
LHCMD_25ns_Q20_2011_V1
(18bp)
PSB user = LHC_SU_A + MD4:LHC25_DB_Aclone_PSB +
LHC25_DB_Bclone_PSB
PS cycle =
MD6:LHC25
SPS user =
LHCFAST3
RF MMI target =
MD2
Contact People: SPSU team, H. Bartosik, B.
Salvant
Additional remarks: The PSB users LHC_A + LHC_B:LHC25_DB_A_PSB + LHC25_DB_B_PSB will be used for the operational cycle and to send the beam to the LHC (LHC MD), while the users LHC_SU_A and MD4 will be used with clones of the cycles LHC25_DB_A_PSB + LHC25_DB_B_PSB for the SPS MD
Friday 16h00 - Friday 17h00
Recovery from MD and switch back to physics
Back to the Injector MD home page
Author: Giovanni
Rumolo BE-ABP-ICE
Last update:
Friday, October 14, 2011 10:56:02 AM
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CERN