User name Kumbartzki
Log entry time 16:09:19 on July29,2006
Entry number 176009
keyword=Day shift summary
Start with Radiator test on D target (15 cm)
Run 1808 No radiator
Run 1809 3%
Run 1810 4%
Run 1811 5%
Next changed the beam position +- 1mm
Operator has problems to get it right: first setting
BPMA X 1.246 Y -0.532
BPMB X -0.996 Y -0.017 moving around
Asked for beam 1 mm below the normal setting:
BPMA X 1.269 Y -0.901
BPMB X -1.005 Y -1.766
9:12 strart 1. optics run on C , centered the beam, Run 1814& 1815
2. run 4 cm dummy
3. run 15 cm dummy
4. run Ta
10:10 Ready for BPM calibration.
Could do only the zero position. Had problems with the harp interface
The IHA1H03B stopped short (see entry # 175964). Julie decided at this point not to continue with the BPM calibrations.
switch over to production run: set LD2, radiator 4%, raster on, 5uA
run 1823 was stopped when we lost beam.
Resume beam at 12:34, start run 1824. Beam currents 5 and 7uA,which gives 2.3KHz T3 and 25% deadtime for the left arm.
Data runs 1825 - 1831
15:25 Hall C makes access. We go for the BCM calibration
Emily takes over.
BCM is still in progress