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User name Chao
Log entry time 21:07:18 on April27,2012
Entry number 379819
Followups:
keyword=Wrong Q1 current for left arm
When I was doing the shift check list, I noticed that the Q1 current of Left arm is not correct. The Left arm Q1 regulation is off, and it looks like the shift crew forgot to turn on the Q1 regulation when they move LHRS setting to 0.8094GeV during the last shift. I turned the regulation on to set the correct Q1 current for 0.8094GeV.
I read throught the Halog. The influenced runs of LHRS starts from 5160 to 5175. The packing fraction run 5161 (which is taken at elastic energy setting) is also influenced.
The Hall A Tools snap shot shows the correct setting for LHRS.
The strip chart shows the Q1 and Q2 momentum setting. You can see the Q2 was changed at 15:20 but Q1 was not changed.
FIGURE 1
FIGURE 2