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User name dalton
Log entry time 23:54:46 on June16,2009
Entry number 281824
keyword=Shift Summary
SL: Mark Dalton
Slave: Diencheng Wang
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Start with tagger ON and HWP IN
16:18 Started runs 22518, 3664
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16:38 Tagger OFF
Started runs 31543, 22519, 3665
16:50 HV alarm on Compton photon detector PMT and again at
16:53, 16:57, 16:59, 17:02
17:02 Started runs 22520, 3666
17:07 Spoke to Jay, he wants to decreas the raster by 20%. Spot++ on run 3667 shows a spot of 3x3.5 on target.
17:13 Started runs 22521, 3667
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17:46 Moved Left HRS to 18 degrees and 2.63 GeV, changed prescale LHRS PS3=1
18:04 Started runs 31544, 22522, 3668 (note: forgot to update LHRS angle and mom in run 22522 info)
18:43 Beam down for > 20 mins but returned
18:43 Started runs 22523, 3669
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19:12 Turned tagger on
19:15 Started runs 31545, 22524, 3670
19:46 Started runs 22525, 3671
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20:20 Moved half wave plate OUT
20:23 Started runs 22526, 3672. These runs will be at a LOW and changing current since the compton group wants to do an electron detector study. I forgot to start the Happex DAQ
21:12 Started runs 31546, 22527, 3673
21:50 Compton ended testing, current back up to 80 uA.
21:54 Started runs 31547, 22528, 3674
22:27 Started runs 22529, 3675
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22:38 Turned tagger off
22:41 Started runs 31548, 22530, 3676
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23:07 Called MCC for an access to unplug one of the vitoes on the PVDIS DAQ, tagger turned ON
23:43 Returned from access and waiting for beam to return