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User name A. Saha
Log entry time 16:28:03 on February10,2000
Entry number 33399
keyword=Shift Summary
Shift Summary, Feb 10, 08:00 - 16:00
________________________________
08:00 - 10:15 Beam Down, PSS problems, Hall in Restricted access
10:15 - 10:45 Adjusting good beam conditions, made harp scans, SPOT
10:45 Started Run #2054, Kin #35 (cont.)
ROC14 not responding. Reset BPM/Raster VME (ROC) Reset
Maybe a junk run
11:00 Troubleshooting ROC14, called Bob Michaels.
Run #2055 Junk
11:06 Run #2056 0.5M, Good Run
11:36 MCC trying to work on higher currents, checking BCM trips
Move to 12C target
Made a harp scan without raster, see Halog, Dx= 82 um, Dy = 86 um
Run #2057 Junk Run
12:06 Run #2058 12C pointing Run
12:10 Moving to Kin #36, p_e = 1530 MeV, Theta_e = 29.58 deg
Cross Calibration Run
12:40 Run #2059 1.0M , good -- Cross Calibration Run
12:55 Moving to Kin#36, p_h = 978.7 MeV, Theta_H = 50.51 deg
MCC troubleshooting BCM trips - will come back later with plans
Hadron arm momentum change is taking longer than planned.
14:00 Run #2060, 200k, good -- 12C(e,e'p) and Pointing run - No Raster
14:15 Run #2061, 140k, good -- 4cm Dummy target - No Raster
14:20 Run #2062, 270k, good -- 15cm Dummy target - No Raster
14:40 Run #2063, 130k, good -- 10cm Dummy target - No Raster
Moving to 3He, Target Controls GUI frozen. M. Kuss Troubleshooting
14:55 MCC down with FSD trip
15:15 Beam Back, Target Controls Back
Start with 5uA cw.
Do harp scans (#423) and SPOT, Run (#2064), Both show Dx = ~4.2 mm
15:28 Run #2065, 1.1M, -- 3He(e,e'p), Kin#36, pressure=115 psi
Trigger was not changed: Set for 1170-1700 MeV (from previous runs)
Looks OK in analysis
15:45 Run #2066, Junk, CODA problems
Run #2067, Junk -- Figured trigger not set properly
Hadron arm Trigger set for 875 - 1170 MeV
15:50 Run #2068, 1M, good -- 3He(e,e'p), Kin#36, pressure=115 psi
Nilanga's Analysis shows that we have ~ 62.5 K with cuts
16:05 We are going to discuss chaning the pressure to 160 psi