Make New Entry,
Make Followup Entry
User name zhangyi
Log entry time 16:37:08 on February22,2009
Entry number 262685
keyword=Day shift summary
Day shift summary
SL : Yi Zhang
TO: Zhihong Ye
3rd: Whitney Armstrong
08:40 HV of BB wire chamber tripped due to dirty beam restart a new run on BB
08:49 Stop taking data and finish a NMR measurement.
10:20 LHRS coda died, dead time is 100% and did not get any event for 15 min. restart coda, the new run number is 20330
10:55 change target to Ref. cell N2(100psi) and change the Kine. of L HRS to 0.9GeV/C, ask for 5uA beam, start a N2 run on both arm
11:30 Move target to 3He and start production.
12:49 Lost beam. MCC said beam would come back 1 hour later.
15:37 MCC get beam back. Ask for a harp scan first.
BB: 1692, 1693(BB HV trip), 1694, 1695, 1696(N2), 1697, 1698(stop for beam trip.)
kine. F(1.13GeV/C): 20327, 20328, 20329(bad), 20330
kine. D(0.9GeV/C): 20331(N2), 20332, 20333(stop for beam trip)