Pre-requisites:
Check of the MKE temperature SW switch
During the scrubbing run and the LONG MDs with LHC beam the ZS are RETRACTED / HV to 0 kV / 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). Block the fast vacuum valves OUT in the injection and extraction areas (LSS1,LSS2,LSS6)
Check on Monday morning (i.e. without beam) that the coast is working. We should have modified the PUs in BA4 (putting some attenuators as in BA3)
Participants: OP, RF, ABP
Monday 11/06 (12:00 - 18:00)
Setting-up of Injection and Capture of the 25 ns LHC beam
Injection (kicker timing adjustment)
Tune and chromaticity measurement and adjustment
Coast setting-up
Beam conditions: LHC in SPS on Scrubbing Cycle (SCRUB_PDOT_V1 - 43.2 s long)
#batches = 1 (12 bunches)
Nb = 1.3 x 1011 p/b
Transverse emittances (e* £ 3 mm)
Longitudinal emittance: eL* = 0.35 eV.s
Most of the setting up should be performed with 12 bunches to avoid scrubbing until the machine is tuned
Verify that following measurements work:
Monday 11/06 (18:00 - 24:00)
Check injection (kicker timing adjustment)
Feedforward and longitudinal feedback setting-up
Check transverse dampers
Beam conditions: LHC in SPS on Scrubbing Cycle (SCRUB_PDOT_V1 - 43.2 s long)
#batches = 1 (72 bunches) (watch the vacuum!!!!)
Nb = 1.3 x 1011 p/b
Transverse emittances (e* £ 3 mm)
Longitudinal emittance: eL* = 0.35 eV.s
Tuesday 12/06 (0:00 - 02:00)
Lifetime studies
Beam conditions: LHC in SPS on Scrubbing Cycle (SCRUB_PDOT_V1 - 43.2 s long). Coast at 26 GeV/c
#batches = 1 (72 bunches)
Nb = 1.3 x 1011 p/b
Transverse emittances (e* £ 3 mm)
Longitudinal emittance: eL* = 0.35 eV.s
The following measurements should be performed in coast:
Tuesday 12/06 (02:00) - Tuesday 12/06 (09:00)
Scrubbing run
Beam conditions: LHC in SPS on Scrubbing Cycle (SCRUB_PDOT_V1 - 43.2 s long)
#batches = 1 (72 bunches)
Nb = 1.3 x 1011 p/b
Transverse emittances (e* £ 3 mm)
Longitudinal emittance: eL* = 0.35 eV.s
Tuesday 12/06 (09:00 - 12:00)
Setting-up for multiple injections (from 2 to 4)
Beam conditions: LHC in SPS on Scrubbing Cycle (SCRUB_PDOT_V1 - 43.2 s long). Coast at 26 GeV/c
#batches = 1-4 (the number of batches will be maximized compatibly with the MKE heating and the vacuum initially, keeping the maximum duty factor)
Call BT expert (Etienne Carlier) to do the fine synchronization of the injection kickers
Nb = 1.3 x 1011 p/b
Transverse emittances (e* £ 3 mm)
Longitudinal emittance: eL* = 0.35 eV.s
Tuesday 12/06 (12:00 - 14:00)
Lifetime studies
Beam conditions: LHC in SPS on Scrubbing Cycle (SCRUB_PDOT_V1 - 43.2 s long). Coast at 26 GeV/c
#batches = 1-4 (the number of batches will be maximized compatibly with the MKE heating and the vacuum, keeping the maximum duty factor)
Nb = 1.3 x 1011 p/b
Transverse emittances (e* £ 3 mm)
Longitudinal emittance: eL* = 0.35 eV.s
The following measurements should be performed in coast:
Tuesday 12/06 (14:00 - 20:00)
Scrubbing run
Beam conditions: LHC in SPS on Scrubbing Cycle (SCRUB_PDOT_V1 - 43.2 s long)
#batches = 1-4 (the number of batches will be maximized compatibly with the MKE heating and the vacuum, keeping the maximum duty factor)
Nb = 1.3 x 1011 p/b
Transverse emittances (e* £ 3 mm)
Longitudinal emittance: eL* = 0.35 eV.s
Tuesday 12/06 (20:00 - 22:00)
Lifetime studies
Beam conditions: LHC in SPS on Scrubbing Cycle (SCRUB_PDOT_V1 - 43.2 s long). Coast at 26 GeV/c
#batches = 1-4 (the number of batches will be maximized compatibly with the MKE heating and the vacuum, keeping the maximum duty factor)
Nb = 1.3 x 1011 p/b
Transverse emittances (e* £ 3 mm)
Longitudinal emittance: eL* = 0.35 eV.s
The following measurements should be performed in coast:
Tuesday 12/06 (22:00) - Wednesday 13/06 (9:00)
Scrubbing run
Beam conditions: LHC in SPS on Scrubbing Cycle (SCRUB_PDOT_V1 - 43.2 s long)
#batches = 1-4 (the number of batches will be maximized compatibly with the MKE heating and the vacuum, keeping the maximum duty factor)
Nb = 1.3 x 1011 p/b
Transverse emittances (e* £ 3 mm)
Longitudinal emittance: eL* = 0.35 eV.s
Wednesday 13/06 (9:00 - 18:00)
Lifetime studies and stability with increased transverse emittances from PS
Beam conditions: LHC in SPS on Scrubbing Cycle (SCRUB_PDOT_V1 - 43.2 s long). Coast at 26 GeV/c
#batches = 1-4 (the number of batches will be maximized compatibly with the MKE heating and the vacuum, keeping the maximum duty factor)
Nb = 1.3 x 1011 p/b
Transverse emittances (scan in e*)
Longitudinal emittance: eL* = 0.35 eV.s
The following measurements should be performed in coast:
Wednesday 13/06 (18:00) - Thursday 14/06 (8:00)
Scrubbing run
Beam conditions: LHC in SPS on Scrubbing Cycle (SCRUB_PDOT_V1 - 43.2 s long)
#batches = 1-4 (the number of batches will be maximized compatibly with the MKE heating and the vacuum, keeping the maximum duty factor)
Nb = 1.3 x 1011 p/b
Transverse emittances (e* £ 3 mm)
Longitudinal emittance: eL* = 0.35 eV.s
Thursday 14/06 (8:00-16:00)
PS MD
Thursday 14/06 (16:00) - Friday 15/06 (8:00)
Scrubbing run
Beam conditions: LHC in SPS on Scrubbing Cycle (SCRUB_PDOT_V1 - 43.2 s long)
#batches = 1-4 (the number of batches will be maximized compatibly with the MKE heating and the vacuum, keeping the maximum duty factor)
Nb = 1.3 x 1011 p/b
Transverse emittances (e* £ 3 mm)
Longitudinal emittance: eL* = 0.35 eV.s
Friday 15/06 (8:00) - Friday 15/06 (18:00)
Lifetime studies and stability with increased transverse emittances from PS
Beam conditions: LHC in SPS on Scrubbing Cycle (SCRUB_PDOT_V1 - 43.2 s long). Coast at 26 GeV/c
#batches = 1-4 (the number of batches will be maximized compatibly with the MKE heating and the vacuum, keeping the maximum duty factor)
Nb = 1.3 x 1011 p/b
Transverse emittances (scan in e*)
Longitudinal emittance: eL* = 0.35 eV.s
The following measurements should be performed in coast:
Friday 15/06 (18:00) - Sunday 17/06 (15:00)
Scrubbing run
Beam conditions: LHC in SPS on Scrubbing Cycle (SCRUB_PDOT_V1 - 43.2 s long)
#batches = 1-4 (the number of batches will be maximized compatibly with the MKE heating and the vacuum, keeping the maximum duty factor)
Nb = 1.3 x 1011 p/b
Transverse emittances (e* £ 3 mm)
Longitudinal emittance: eL* = 0.35 eV.s
Sunday 17/06 (15:00) - Sunday 17/06 (17:00)
Lifetime studies
Beam conditions: LHC in SPS on Scrubbing Cycle (SCRUB_PDOT_V1 - 43.2 s long). Coast at 26 GeV/c
#batches = 1-4 (the number of batches will be maximized compatibly with the MKE heating and the vacuum, keeping the maximum duty factor)
Nb = 1.3 x 1011 p/b
Transverse emittances (e* £ 3 mm)
Longitudinal emittance: eL* = 0.35 eV.s
The following measurements should be performed in coast:
Sunday 17/06 (17:00) - Monday 18/06 (8:00)
Scrubbing run
Beam conditions: LHC in SPS on Scrubbing Cycle (SCRUB_PDOT_V1 - 43.2 s long)
#batches = 1-4 (the number of batches will be maximized compatibly with the MKE heating and the vacuum, keeping the maximum duty factor)
Nb = 1.3 x 1011 p/b
Transverse emittances (e* £ 3 mm)
Longitudinal emittance: eL* = 0.35 eV.s
Monday 18/06 (08:00) - End of the scrubbing run
Unblock the vacuum valves in the injection and extraction areas
Ask TI to restart the cooling circuit for the septa magnets (circuits 214, 414 and 614)
J. Borburgh has been informed to verify the conditioning of the septa
L. Ducimetiere has been informed to verify the conditioning of the MKDV
Author: Elias Métral - AB/ABP
Last update:
Monday, June 11, 2007 02:34:59 PM
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