User name Xiaofeng
Log entry time 08:01:47 on November29,2001
Entry number 78264
Shift of Thurs 11/29, 00h -> 08h
00h05 : shift begins, no beam.
00h15 : MCC calls to say they will restore current begining with a low value and then increasing to 55 microA
00h25 : run 2635 starts. junk, wrong prescale factor
00h31: run 2636 starts with new prescale factor: ps1=5200,ps2=212,ps3=2460,ps4=268,ps5=1,ps8=65535
02h20: MCC need to check the main frame, beam stopped
02h33: Beam is back
03h01: MCC RF tripped, and phoned about QE measurement for 15~20 minutes
03h15 : beam is back
03h30: MCC called about the beam trip in HallC's orbit, so they sent turned beam
03h35 : left arm Q1 tripped, asked for controlled access, and reset it
04h30: asked for beam permit
05h00: left arm Q1 tripped again, asked for controlled access and reset it
06h20: asked MCC to switch HallA to beam permit. However, before sending beam to us , MCC needed at leat 30 minutes to fix their problems.
06h30: left arm Q1 tripped again.
07:05am MCC fixed their problem. We asked for controller access , and wait for expert to fix the problem.
07:55am Ed Flots came to help.
run: events: Q: sumQ:
2636 2.7 22.9 1988.4
2637 2.7 23 2011.4
2638 2.7 23 2034.4
2639 1.0 8.6 2043
2640 1.48 9.75 2052.7
2641 beam not stable