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User name Ole Hansen
Log entry time 16:04:33 on February 16, 2011
Entry number 347218
keyword=Day Shift Summary
February 16, 2011, day shift summary
Crew:
Ole Hansen (SL)
Nikos Sparveris (TO)
Sasha Glamazdin (3rd)
Summary:
Mostly very smooth data taking for neturon detection efficiency calibration
measurement
Timeline:
- 08:00 Production in progress, run #1427
- 08:35 Asking for controlled access to check HAND discriminator
thresholds
- 08:45-09:45 Access in progress. See halog
347170
for details
- 09:50 Resuming data taking
- 15:00 Beam goes down due to accelerator electronics problem.
Experts are working on it.
- 16:00 Shift ends with no beam, accelerator troubleshooting in
progress.
Run list:
1427 neutron detector efficiency, 6 uA, 1M, 21% deadtime
1428 junk, CODA crash
1429 cosmics
1430 CODA test
1431-1436 neutron detector efficiency, 6 uA, 1M, 21-22% deadtime
1437 junk CODA crash
1438-1443 neutron detector efficiency, 6 uA, 1M, 9-10% deadtime,
T2 prescale changed to 46 (see halog
347198)
1444 neutron detector efficiency, 6 uA, 100k, ended when beam went down