day shift summary

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User name X. Zheng

Log entry time 16:03:55 on May22,2009

Entry number 275564

keyword=day shift summary

07:55 stopped HAPPEX run 31396 and started a new run 31397

08:20 Found left arm has high deadtime, stopped run 2580 and 21482;
Run 2581 and 21483 are junk;
07:58 started new HAPPEX run 31397;

08:45 Left DAQ died again, ended run 2582 and 21484 early;

09:15 MCC called: will be down for about 15min.

09:16 NMR 51.59%

09:30 MCC called: will be down longer;

10:00 beam is back;

11:48 started new HAPPEX run 31398;

13:00 NMR 52.28%;

15:54 Started new HAPPEX run 31399;

Production run list:

Target: polarized 3He
Left start stop #events comments
2580 07:42 08:16 2.8M ended early because of high deadtime
2582 08:23 08:46 ??? DAQ died, ended early, no end-of-run entry
2583 08:48 09:15 2.8M good
2584 10:02 10:28 4.0M good
2585 10:29 10:56 4.0M good
2586 10:57 ... good
2587-2594 ... ... All are good runs with full statistics
2595 continue to next shift

Right start stop #events comments
21482 07:41 08:18 4.6M good
21484 08:23 08:46 1.5M ended early because of left DAQ
21485 08:48 09:15 3.1M good
21486 10:02 10:28 4.3M good
21487 10:29 10:56 4.3M good
21488 10:57 ...
21489-21488 ... ... All are good runs with full statistics
21498 continue to next shift