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User name Ole Hansen
Log entry time 23:58:09 on February10,2000
Entry number 33452
keyword=Shift Summary
16:00-16:20 Waiting for beam
16:20 70 uA arrive. Raster on.
16:25 Start run 2070, target pressure is still 116 psi for now.
16:45 Stop run 2070 at 1.3M events for high-current tests on 3He
17:00 Accelerator managed to get 133 uA on target.
Preparing for access.
17:50 Spectrometers moved and set for elastic kinematics
17:55 Start data taking ... rates are too low ... found target was moved out
Runs 2071 and 2072 are mainly useful for background studies.
18:25 Finished moving target. Start run 2073, elastic, same conditions
as yesterday (runs 2026-2029).
18:40 Run 2073 seems to be affected by deadtime fluctuations.
Re-downloading DAQ. Run 2073 is probably not usable.
18:42 Start run 2074.
19:43 End run 2078, end of elastic data. Rates are very similar to yesterday.
Starting current calibration run.
21:45 - Current calibration finished.
- Begin arc energy measurement.
- Hadron spectrometer moved to 48.3 degrees in preparation for later
elastic running.
22:10 Beam problems. Arc measurements delayed.
22:45 Beam returns. Arc measurements continue.
23:30 Arc measurement finished. Beginning ep energy measurement preparations.
23:55 ep ready, measurement begins.