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User name Rikki
Log entry time 15:20:19 on June28,2001
Entry number 64899
keyword=shift summary
Day shift
08:00 Continue taking data on in/+ x=0.6 setting. Fast feedback is not working. Holding field is being recorded both in start and end of run comments.
08:13 Beam tuning, pulsed beam
09:00 Beam back but compton wants to perform a vertical scan
09:21 Usable beam back
10:07 MCC wants to move beam position to fix Fast Feedback.
10:34 Since MCC is still playing with the beam, we have decided to perform an EPR measurement.
10:55 EPR measurement complete. 43% target polarization.
11:05 MCC is ready to send CW beam.
11:08 Beam position not good. MCC working on it.
12:21 MCC now has power supply problems.
13:30 Beam is now okay (apparently has been for several minutes but MCC never called to confirm)
13:34 Looks like ALL magnets in both arms have quenched. MCC called about an ESR crash. This must be the reason for the magnet crashes. Paged techs about the magnets and ESR and were told there would need to be an access to look for plumes. We will also use this access to reboot the target computer. Cause of crash was a blown circuit breaker. Still several hours before we can be completely recovered (according to Ed Foltz).
Lrun#..Rrun#..Parity_run#..Start.........End.....Comments
1830....20830......1008..........07:55.......08:25....pulsed beam at end of run
1831....20831......1009..........09:21.......10:07....beam position moved at beginning
1832....20832......1010..........JUNK..................beam position not good
1833....20833......1011..........JUNK..................ESR crash