Change of supercycle => ION-L18000_V1 (18 s long, 15 BPs) => Try and prepare the supercycle during the preceding shift!

Timing sequence Name => LHCION-0/2/3

Beam conditions: LEIR user = EARLY / PS user = LHCION / SPS user = LHCION (RF MMI pointing to LHCION => See below how to do this)

RF MMI pointing to LHCION (method):

            - Working Sets

            - RF-MMI => SPS-MMI

            - Select context => SPS.USER.LHCION

            - View => Show devices description

- MMI target LHCION => Enabled and MMI target "previous one" => Disabled. To be done 2 times as it appears 2 times in the list

- Delay has to be set to 550

- Only 1 user (LHCION) is used for the parallel MDs and the dedicated ones: All the timings (CBCM Timings, RF-SPEC, RF-MMI and EA-NORTH) have been saved in the archive "LHCION for parallel MD" for the parallel MDs and "LHCION for dedicated MD" for the dedicated MDs => Load the correct archive when needed.

- Note that the timing SIX.MC-CTM is Enabled with a CCV of 425 (ms) for the protons, while it is 525 (ms) for the ions as they are extracted from the PS 100 ms later than the protons.

#injections = 1 with 1 bunch - Extraction from the PS w/o QKE58

N_b = 1.0 x 10¹⁰ charges/b

Transverse emittances: e^* < 1 mm

Bunch length (4 sigmas): taub = 4 ns.

Longitudinal emittance: e_L^* < 0.05 eV.s/u

Wednesday 19/09 (08:00 - 15:00) - Setting-up of the cycle and injection (no RF capture)

CHECK the pre-pulse for the injection kicker in BA1 => In case of problem, phone P. Nouchi (160100), as a HW switch has to be done

• HW compensation check...
• Setting-up of transfer and injection (pre-requisite: verify optics settings)
• Adjust kicker timing
• Inject, establish circulating beam
• Check instrumentation: BPMs, BCT, Fast BCT, Wire Scanner, Tune meas

Participants: OP, RF, ABP, BI

Wednesday 19/09 (15:00 - 22:00) - Setting-up of another cycle going to 270 GeV/c (instead of 450 GeV/c previously)

Change of supercycle => ION-ACC270-L18000_V1 (18 s long, 15 BPs) => Try and prepare the supercycle during the preceding shift!

Timing sequence Name => LHCION-w/coast-0/2/3

• Injection and flat-bottom studies.
• Test coast without beam.

Contact Person: D. Manglunki

Wednesday 19/09 (22:00 - 23:00) - Change of supercycle

Change of supercycle => ION-L18000_V1 (18 s long, 15 BPs)

Timing sequence Name => LHCION-0/2/3

Beam conditions: LEIR user = EARLY / PS user = LHCION / SPS user = LHCION (RF MMI pointing to LHCION)

#injections = 1 with 1 bunch - Extraction from the PS w/o QKE58

N_b = 1.0 x 10¹⁰ charges/b

Transverse emittances: e^* < 1 mm

Bunch length (4 sigmas): taub = 4 ns.

Longitudinal emittance: e_L^* < 0.05 eV.s/u

Contact Person: D. Manglunki

Wednesday 19/09 (23:00) to Thursday 20/09 (07:30) - Collimation studies (loss maps) at injection (if possible)

Contact Person: J. Jowett & S. Gilardoni

Thursday 20/09 (07:30 - 08:00) - Recovery from MD & setting-up of physics cycle

Authors: Elias Métral - AB/ABP and Django Manglunki - AB/OP
Last update: Tuesday, September 18, 2007 04:37:34 PM
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