User name lkaufman
Log entry time 08:06:03 on March31,2005
Entry number 142869
keyword=Owl Shift Summary
Owl Shift Summary
Started shift with question about the NA Plane1 L-PMT TDCs 26 and the ADC for
this channel because they seemed to have few hits. Called RC, and he said not
to worry about it for the night - will call the experts in the morning. HV
seems to be ok for this channel. TDC/ADC 26 in online gui plots corresponds to
the N1 scaler 27 according to Peter M.
00:10 - Production Run 3085 ended.
00:15 - Left Q1 tripped because of liquid level fluctuation.
Called for controlled access to reset.
00:20 - ended Compton run 10517.
00:50 - Q1 ramped back up. Asked MCC for 45 uA of beam.
Started taking data again at 00:53.
Began Compton Run 10518 at 00:55.
Production runs on tilted Carbon
Run 3086 - 00:53-01:36 200k events
Run 3087 - 01:36-02:17 200k events
Run 3088 - 02:18-03:04 200k events
Run 3089 - 03:05-03:49 200k events
During run 3089, current changed from 45 uA to 40 uA.
Run 3090 - 03:49-04:37 201k events
MCC called and will try to run 45 uA again.
Run 3091 - 04:38-05:37 171k events
Need to reboot ROC5 because deadtime was high (99%) - rebooted TS2.
Compton Run 10518 - end of run failed. Restarted coda, and started run 10519
Run 3092 - junk -> testing DAQ.
After doing data replay, of the following runs:
Run 3093 - 05:46-06:30 200k events
Run 3094 - 06:30-07:16 200k events
Run 3095 - 07:16-08:02 192k events
we noticed that the Big Bite histograms are empty. We still have a problem
with ROC5. So this data is probably useless. I'm sorry!
We are now working to fix the problem.