User name LeRose
Log entry time 16:01:55 on June22,2000
Entry number 44672
Plan is to do production running at thetacm=-50 degrees
Electron: P0=3.660 @14.075 deg collimator open
Hadron: P0=1.27 @50.179 deg collimator open
15cm H2 target
Begin with run run 2446 in progress Stopped at 8:20 because accelerator having RF problems (0.69M events)
8:25 Started 2447
9:08 Ended 2447 (1.3M). 2448 started
9:30 ended 2448 downstream 3x problem traced to loose cable. Reconnected cable.
9:38 ended 2449 short run to test 3x downstream problem. Repaired!
10:20 ended 2450 (1.00M)
Accelerator doing some steering, going to pulsed beam for a few minutes. Data taking suspended.
10:34 beam back
11:20 More beam problems. Vertical moton in the 0L0 region. Estimate 15 minutes down, replacing trim cards.
12:00 HAC rebooted (was loaded down with excessive tasks)
12:05 beam back, 2452 started.
12:58 2452 ends. Beam is still not very stable (on a minute, off a half minute, on three minutes, off again etc....) Operations elog (114768) says vertical motion is still there.
13:17 MCC has an IOC problem (IOCea5) with a magnet estimate 10 minutes down. Ended run 2453.
13:35 IOC went down again. Estimate another 10-15 minutes down.
14:15 Still waiting
14:30 MCC called. They are having multiple problems. Those problems conflict with the planned spot move (scheduled for 1400) and are holding it up. When the problems are resolved they will make the spot move. No predictions for when we'll see beam again.
1.4 Coulombs up to now