Wednesday 04/07  (08:00-10:00)

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)

Change of supercycle (LHC-FT500_PDOT_V1 - User=LHC25) and HW compensation trim

Beam conditions: No beam

Participants: AB/OP - AB/RF - AB/ABP

Wednesday 04/07  (10:00-14:00)

Setting-up of the cycle with LHC beam (12 bunches)

• Setting-up of transfer and injection (pre-requisite: verify optics settings)
• Adjust kicker timing
• Inject, establish circulating beam
• Setting-up acceleration, measure tunes and chromaticity and correct
• Check instrumentation: BPMs, BCT, Fast BCT, LHC BPM, Head-tail monitor, Wire Scanner, IPM, Tune meas

SPS user: LHC25 - PS USER=LHC25

#batches = 1 (12 bunches)  - Extraction w/o QKE58 from PS

N_b = 1.3 x 10¹¹ p/b

Transverse emittances (e^* < 3 mm)

Longitudinal emittance: e_L^* = 0.35 eV.s

Participants: AB/OP - AB/RF - AB/ABP - AB/BI

Wednesday 04/07 (14:00-20:00)

Setting-up of 800 MHz, RF feedback and feedforward and longitudinal damper

Transverse fine tuning in parallel

SPS user: LHC25 - PS USER=LHC25

#batches = 1-4 (72 bunches)  - Extraction w/o QKE58 from PS

N_b = 1.3 x 10¹¹ p/b

Transverse emittances (e^* < 3 mm)

Longitudinal emittance: e_L^* = 0.35 eV.s

Participants: AB/OP - AB/RF - AB/ABP - AB/BI

Wednesday 04/07 (20:00-21:00)

Transverse damper set-up

SPS user: LHC25 - PS USER=LHC25

#batches = 1-4 (72 bunches) - Extraction w/o QKE58

N_b = 1.3 x 10¹¹ p/b

Transverse emittances (e^* < 3 mm)

Longitudinal emittance: e_L^* = 0.35 eV.s

Participants: AB/OP - AB/RF - AB/ABP

Wednesday 04/07  (21:00-22:00)

Setting-up of the cycle with Pilot beam

• Setting-up of transfer and injection (pre-requisite: verify optics settings)
• Adjust kicker timing
• Inject, establish circulating beam
• Setting-up acceleration, measure tunes and correct
• Check instrumentation: BPMs, BCT, Fast BCT, LHC BPM, Head-tail monitor, Wire Scanner, IPM, PLL, BBQ, Tune meas

SPS user: LHC25 - RF MMI pointing to LHC PILOT - PS USER=LHCPILOT

#injections = 1  (1 bunch)  - Extraction w/o QKE58

N_b = 5 x 10⁹ p/b

Transverse emittances (e^* = 3 mm)

Longitudinal emittance: e_L^* = 0.3 eV.s

Participants: AB/OP - AB/RF - AB/ABP - AB/BI

Wednesday 04/07  (22:00)- Thursday 05/07 (04:00)

Non-linear chromaticity measurements all along the cycle

SPS user: LHC25 - RF MMI pointing to LHC PILOT - PS USER=LHCPILOT

#injections = 1  (1 bunch)  - Extraction w/o QKE58

N_b = 5 x 10⁹ p/b

Transverse emittances (e^* = 3 mm)

Longitudinal emittance: e_L^* = 0.3 eV.s

Participants: AB/OP - AB/ABP - AB/BI

Contact person: R. Tomas

Thursday 05/07 (04:00-06:00)

Creation of references for the Pilot beam

SPS user: LHC25 - RF MMI pointing to LHC PILOT - PS USER=LHCPILOT

#injections = 1  (1 bunch)  - Extraction w/o QKE58

N_b = 5 x 10⁹ p/b

Transverse emittances (e^* = 3 mm)

Longitudinal emittance: e_L^* = 0.3 eV.s

Participants: AB/OP

Thursday 05/07 (04:00-06:00)

Creation of references for the LHC nominal beam

SPS user: LHC25 - RF MMI pointing to LHC25 - PS USER=LHC25

#batches = 1-4 (72 bunches) - Extraction w/o QKE58

N_b = 1.3 x 10¹¹ p/b

Transverse emittances (e^* < 3 mm)

Longitudinal emittance: e_L^* = 0.35 eV.s

Participants: AB/OP

Thursday 05/07 (08:00)

End of MD

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)

Inform the ZS expert to check the conditioning of the septa before set the HV

Author: Gianluigi Arduini - AB/ABP
Last update: Tuesday, July 03, 2007 12:04:14 PM
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