• Main INDEX
  • Monthly INDEX
  • PREV
  • NEXT

    User name A. Deur

    Log entry time 23:57:32 on January11,2003

    Entry number 91527

    keyword=Shift summary

    16:10: Beam back. Start run 281. Configuration: Beam 1/2 plate out, target spin 270. Kinematic 4.3.5
    16:25 Beam trip
    16:37 Beam back
    17:03 compton chican scan
    17:15 Stop run 281
    move to kinematics 4.4.0
    Put back target at 0 degree
    Move to E'=2.170 GeV/c (cycled the magnets)
    Do NMR/EPR
    17:42. Beo/C in. ask for 5 uA raster off. run 282
    17:56 empty ref cell in. Ask for raster on, 10 uA
    beam position is x_bpma=0.7, x_bpmb=0.7, y_bpma=-0.1, y_bpmb-0.4 -> We asked mcc to tune the beam better but they were waiting that the compton is done with its vertical scan.
    18:24. Beam position looks good (x_bpma=1., x_bpmb=1., y_bpma=-1.4, y_bpmb-1.8). We start empty cell run.
    18:39. stop run 283. fill ref cell with 147 psig
    18:57. Start N2 ref cell run 284.
    Start pressure 146 psig
    stop pressure 138 psig
    Move to pol He3 target
    19:22 Start production run for kinematics 4.4.4 run 285
    20:37. End run 285
    move target to 270 degree
    20:50 start run 286
    22:02 :stop beam to insert 1/2 wave plate and rotate target spin to 0 degree.
    22:12: Beam back 2 short runs with parity DAQ
    22:30. start data taking in configuration 4.4.3
    22:55 Q2 left trip. End of run 20187 is probably junk. We cannot reset it from upstear. requested an access.
    We will do NMR/EPR
    23 35. Q2 reset and cycling
    23:50 Beam back. Continue kinematics 4.4.3