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User name Kelly
Log entry time 16:00:04 on March23,2000
Entry number 36772
keyword=shift summary
0810: asked for controlled access to move spectrometer, but then request
rescinded because beam will go down at 9:30 anyway; we will run at the
present settings until then.
0837: beam back
0900: pulsed beam for tuning
0940: access to move espec
1100: lost control of target lifter. Reset IOC
1110: MCC says injector work and move of beam spot finished, but problems with IOCs. Estimate half hour to fix. Then want to investigate optics. Apparently
there is a bad tune, probably incorrect quad, which makes beam too large at
ep aperture. MCC believes that this is responsible for the difficulties in
restoring beam to high current after doing low current OTR and harp scans.
Several times during the last week, 4 or more hours were needed to recover
the beam after changing current and they hope to fix that problem this
afternoon.
1215: beam back. start harp scan with raster off.
1245: try OTR with 20 uA, raster off. Frequent trips
1250: lost Xsession on hac
1255: OTR at 10 uA, widths 0.18 x 0.14 mm.
1310: beam now supposed to be stable at 120 uA, start normalization run
for kinematics 15
1400: set up for kin 31
1405: start set up harp scans for tuning beam line
1435 harp scans 1234 in run 706, 56 in run 707
1445: scan completed; ask for beam
1500: beam back