Log entry time 23:56:24 on April29,2008

Entry number 235872

Swing shift summary | S. Sirca (SL), D. Armstrong (TO), C. Dutta (3rd)

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Events

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16:00  No beam upon start of shift (ongoing beam studies)

17:45  Beam is back, target is Ta

18:20  Insert C target

18:50  Insert LH2 target

18:55  BB MWDC HV trip (S16), recover in 10 minutes

19:38  Start ramp down of HRSL momentum to 0.997 MeV/c for kinematics C-III

19:51  Ready for production running in kinematics C-III

20:30  Problems restoring HRSL HV (mainframe 7)

21:10  Request hall access to reset HV crate 

22:10  Request beam again

23:55  Beam away for PSS issues that can not be cleared



Runs

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18:04  4387      3.0 uA on Ta (run to set prescales)

18:08  4388 0.5M 3.0 uA on Ta 

18:23  4389      3.0 uA on C (run to set prescales, see HALOG 235822)

18:28  4390      3.0 uA on C 

18:35  4391 0.5M 2.0 uA on C 

19:10  4392      3.5 uA on LH2 (run to set prescales)

19:14  4393      3.5 uA on LH2 (run to set prescales)

19:17  4394      3.5 uA on LH2 (run to set prescales)

19:21  4395      3.5 uA on LH2

19:52  4396      3.5 uA on LH2 (PS test)

19:55  4397      3.5 uA on LH2 

20:09  4398 1.0M 3.5 uA on LH2 

20:24  4399 1.0M 3.5 uA on LH2 

20:39  4400 0.2M 3.5 uA on LH2 (NB start of HRSL HV problems)

22:39  4401 0.7M 3.5 uA on LH2 (NB after HV problems resolved)

22:43  4402 1.0M 3.5 uA on LH2 

22:58  4403 1.0M 3.5 uA on LH2 

23:10  4404 1.0M 3.5 uA on LH2 

23:25  4405 1.0M 3.5 uA on LH2 

23:39  4406 1.0M 3.5 uA on LH2 beam is off