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User name jpchen
Log entry time 16:19:39 on November23,2009
Entry number 302100
keyword=Day shift summary
11/23/2009 Day shift summary
Shift workers: J. P. Chen (SL), R. Michaels (TO), C. Jen (3rd)
8:00 production with 110 uA on 20 cm LD2 (loop1).
8:15 disk 2 (adaql1/data2) nearly full. Bob changed it to disk 4
(adaql1/data4) (Log entry 302029).
9:40 coda crash
10:30 coda crash
12:05 stoppde production. started ramping down right dipole to get ready for polarity change.
Continue run while waiting for BCM calibration to start.
13:11 BCM calibration and boiling tests.
14:15 requested controlled access for polarity change
15:30 Heidi/Todd completed polarity switch. Jack is still working on the left Q1.
Started to set the spectrometer to R=2.63 GeV, L=3.66 GeV.
Cycled Q2/Q3 right to 1400 A
cycled left Q2 to 1600 and Q3 to 1400 (per Jack's instruction).
leave Q1 alone for now.
15:45 All magnets set except right dipole (still ramping up). Jack fixed left Q1.
A question on right Q3, which did not switch sign (gauss meter reading) aftre polarity switch. Still investigating at the end of shift, while waiting for right dipole ramping up.
14168 8:05-8:15, 13K, 110 uA on LD2, short run due to disk changed from /data2 to /data4 (log entry 302029).
14169 8:18-9:13, 100K
14170 9:20-9:40, 34K, Coda crashed
14171 9:45-10:30, 34K, coda crashed again
14172 10:44-11:44, 100K
14173 11:44-12:05, 37K, stopped for ramping down right dipole for polarity change.
14174 12:10-12:58 right dipole ramping down.
14175 13:11-13:55, BCM calibration
14176 boiling test
5257/25706 7:05-8:31/8:41, 5.7M/6M, 110 uA on LD2,
5258/25707 8:35/8:45-10:01-10:24, 5.7M/6M
5259/25708 10:04/10:28-11:27/11:31, 5.7M/4M
5260/25709 11:28/11:33-12:06, 2.6M/2.1M.
5261/25710 12:20/12:12-12:58, Right dipole ramping down.
5262/25711 BCM calibration
5263/25712 boiling test