Week 35 - PS dedicated MD Wednesday 27/08 (11:00 - 18:00 or 19:00: The earlier the better for the SPS restart...)

 

From 08:00 to 11:00 there will be an intervention in the PS to repair a 80 MHz RF cavity

 

First MD: Injection losses on high-intensity beams

Beam conditions: PS user = CNGS and PSB user = CNGS

Contact Person: S. Aumon

 

Second MD: Depending on the advancement of pending issues related to the TSTLHC25/LHC25 beams, the subject will be:

1) Change h84 timing tree to counteract coupled-bunch oscillations recently observed on LHC25

Beam conditions: PS user = LHC25 and PSB user = LHC25A&B

PS user = TSTLHC25 and PSB user = LHC25A

PS user = TOF and PSB user = LHC25A&B

(with intensity for LHC 50 ns)

#bunches =12 - 72

No special requirements on intensity

Contact Person: H. Damerau

 

2) First test to produce TSTLHC25/LHC25 without SYNCDDSMHS

Beam conditions: PS user = TSTLHC25 and PSB user = LHC25A

#bunches =12 - 48

No special requirements on intensity

Comment: This MD affects all LHC multi-bunch beams

Contact Person: H. Damerau

 

3) Testing a modified MHS with an additional serial input

Beam conditions: PS user = TSTLHC25 and PSB user = LHC25A

#bunches =12 - 48

No special requirements on intensity

Comment: This MD affects all LHC multi-bunch beams and AD

Contact Person: H. Damerau

 

Remark: There should be beams delivered to the PS users most of the time.


 


Author: Elias Métral - AB/ABP
Last update: Friday, August 22, 2008 02:56:12 PM
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