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User name M. Rvachev
Log entry time 00:06:31 on October 9,2000
Entry number 49851
keyword=Shift summary
16:00 Continue running on kinematics PY-1E.
17:15-17:20 Did not have readouts of fan parameters, rebooted target IOC
between runs 1614 and 1615, fan readouts came back.
18:50 Finished taking 4He data on PY-1E kinematics, doing dummy and carbon
19:45 Harp scan with raster off, beam spot width is ~100um (the same as a few days ago).
20:00 Joe is doing ep measurement
21:20 Changed left arm angle to 17.76 nominal (17.727 in control window),
2.35974 GeV/c momentum, cycled LQ2 and LQ3. Started elastic scattering runs.
23:45 Finished 4He, dummy and carbon pointing runs on elastic kinematics.
23:45 In principle we are finished with this kinematics, the next shift is trying
to remeasure 4He elastic on this setting at lower beam currents while they
have time before scheduled energy change.
Run...Start...Events Comments
1611 16:00 1.2M
1612 16:18 1.2M
1613 16:37 1.2M
1614 16:55 1.2M
1615 17:22 1.2M
1616 17:41 1.2M
1617 18:02 1.2M
1618 18:20 1.2M
1619 18:40 0.387M
Carbon pointing run:
1620 18:58 1.2M
10cm dummy run:
1621 19:21 0.28M
Harp scan run#1036
CODA run 1622 19:45 2.7K
Changed left arm to elastic scattering point (left arm angle 17.727, momentum 2.35974GeV/c):
runs 1623, 1624 are junk
1625 21:58 1.2M first good elastic run (right arm is in the "link" position)
1626 22:16 1.2M
1627 22:37 1.2M
deadtime is 5% in elastic runs, we should have ~20,000 elastic events
10cm dummy run:
1628 23:04 1.1M
Carbon pointing run:
1629 23:32 0.56M