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User name sarty
Log entry time 23:46:59 on June11,2007
Entry number 205210
keyword=Swing Shift Summary
16:00 Arrived waiting for pass-change to be completed.
16:20 Pass change done, beam size checked at MCC with Harp Scan (harp A) - Yan in MCC reports beam size of 84 um x 150 um (see separate halog entry...ok, 2 entries since Brad did it before I did the same entry!)
Raster size determined (see separate halog): ask MCC for '2.8 x 4.5' to give 2mm x 2 mm.
Optics run done.
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Start Production: 3He, Radiator IN (doing 2 hours worth)
Run 1153 (start @ 17:45) - short run (high deadtime, prescales unset)
Run 1154 (start @ 17:47) - good production running (stay @ 20 uA)
...T5 trigger rate @ 20 uA = 3.8 - 3.9 Hz ...
Radiator temp seemed to level off to less than 3K/min, so increased current to 30 uA.
Run 1155 (start @ 18:07) - good production running (@ 30 uA)
Run 1156 (start @ 19:08) - good production running (@ 30 uA)
------------------------------------------------------------------
20:15 Take Radiator OUT (doing 1 hour)
Run 1157 (start @ 20:16) - rad OUT production @ 50 uA
-------------------------------------------------------------------
21:20 Put Radiator IN (to start another 2 hours worth)
Run 1158 (start @ 21:25) - rad IN production @ 30 uA
Run 1159 (start @ 22:27) - rad IN production @ 30 uA
-------------------------------------------------------------------
21:30 Take Radiator OUT
Run 1160 (start @ 23:38) - rad OUT production @ 50 uA
until shift ends ...
Great shift! (unfortunately, # of good 3He(g,pp)n events is small, but that appears to be life :)