Genya set up ABS for single state H. Observed some strange bumps in
LIGIT pressure which appeared right after opening the ABS valve 11.
However, didn't disappear after closing valve, nor after turning off
dissociator, not anything else Genya tried. Decided to ignore and
then it disappeared for no apparent reason.
Beam ready around 20:00 after operators tuned for 80 mA injection and
checked slit settings, etc.
BQM rates good at 130, 20, 40, 30 for T, R, B, L.
Started run 3841 but could not get Compton laser to turn on. Called
Bill and made controlled access to polarimeter hut. Seems to be some
confusion about the serial cables to control the laser power supply
but various combinations and attempts at other solutions failed to
establish
communication. Decided to leave this until Taylan comes in at 04:00.
Three of the four HV crates had to be power cycled and the IOC
rebooted each time before we could get things to turn on.
CODA hung once.
Runs 3845 and on are probably okay except there is no Compton data.
Had to edit the physl2t_Go script to stop it from trying to start
Compton. Also recompiled stuff in etSpy to make the BlastDataAlarm
recognise that there was physics data, just no Compton data.
Around run 3846 downloaded archive/newphys~0004.map to take trigger
types 2 and 3 out of the trigger.
Started crunching runs 3845-3848
Finally things running smoothly.
Cheers,
Douglas
26-415 M.I.T.
Tel: +1 (617) 258-7199
77 Massachusetts Avenue Fax: +1 (617)
258-5440
Cambridge, MA 02139, USA E-mail:
hasell@mit.edu
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