Week 40 - Parallel MD

Reminder 1: There should always be 1 cycle reserved for parallel MDs in the PSB. The two main studies will focus on (1) stability issues on ring 4, and (2) LHC beams production in the LINAC4 era.

Reminder 2: During the week (when possible) the PS will continue to work on the Matrix measurements with the 5-CM PFWs.

Reminder 3 (if not done during week 39): When it is known that the LHC will not ask beams for about 4-5 hours, inform Ralph Steinhagen (162584) => He needs to do a calibration of the BQK, which can be done with the LHCPROBE bunch on LHCFAST but slightly more intensity is required (~ 1E10 p/b instead of the 2or5E9 p/b asked by the LHC).

Monday 29/09 (08:00 - 18:00) - PS transition studies

Beam conditions: PS user = MD2 and PSB user = TOF

Contact Person: S. Aumon and W. Baartman

Tuesday 30/09 (08:00 - 18:00) - Study of the TMCI at SPS injection

Beam conditions: SPS user = MD1 (supercycle = SFT_LONG-3CNGS-LHCFAST-MD37_V1), PS user = MD4 and PSB user = MD3

#bunches = 1

N_b = Scan from ~ 1.0 x 10¹⁰ p/b to ~ 1.0 x 10¹¹ p/b => Ask Klaus to adjust it in the PSB + Heiko to check that everything is OK in the PS

Transverse emittances: e_x,y^* are what the PSB can deliver (should be constant over the intensity range, because the intensity is changed with longitudinal shaving, i.e. by changing one vector of the C02 GFA)

Longitudinal emittance: e_L^* ~ 0.15 eVs

Contact person: B. Salvant

Wednesday 01/10 (08:00 - 18:00) - PS transition studies

Beam conditions: PS user = MD2 and PSB user = TOF

Contact Person: S. Aumon and W. Baartman

Thursday 02/10 (08:00 - 18:00) - Study of the TMCI at SPS injection

Beam conditions: SPS user = MD1 (supercycle = SFT_LONG-3CNGS-LHCFAST-MD37_V1), PS user = MD4 and PSB user = MD3

#bunches = 1

N_b = San from ~ 1.0 x 10¹⁰ p/b to ~ 1.0 x 10¹¹ p/b => Ask Klaus to adjust it in the PSB + Heiko to check that everything is OK in the PS

Transverse emittances: e_x,y^* are what the PSB can deliver (should be constant over the intensity range, because the intensity is changed with longitudinal shaving, i.e. by changing one vector of the C02 GFA)

Longitudinal emittance: e_L^* ~ 0.15 eVs

Contact person: B. Salvant

Friday 03/10 (08:00 - 18:00) – Preparation in the PSB and PS of the beams which will be used during the Long Injector MD of next week 41

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Author: Elias Métral - AB/ABP
Last update: Thursday, October 02, 2008 05:42:46 PM
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