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User name Mitra
Log entry time 00:03:35 on December16,2011
Entry number 360010
keyword=Shift Summary: Swing Shift Summary 12/15/2011
Shift crew:
SL: Mitra Shabestari
TO: Konrad Aniol
3rd: Dimitri Margaziotis
16:00 --- Hall is in controlled access. Jack is in the hall working on LHRS.
18:30 --- Aidan is back from the meeting and we are going to take data without moving left arm.
So far there's no beam, but when we get beam back we need to chage the right arm
momentum. For each RHRS setting the run plan is as following:
(1) Move C target in (of course we have to ask MCC to mask the target before moving it)
(2) Take 1-hour run without raster.
(3) Take 1-hour run with fast raster (raster should be +/-1 on spot++).
(4) Take 1-hour run with fast raster + slow raster.
Beam current should be 0.5 muA, unless directed otherwise.
NOTE: To set the momentum values to the p0 values on the "Carbon Inelastic Scan" table for Q1,
Q2, and Q3 use following:
Q1 = p0 * 499.8724838
Q2 = p0 * 408.56541
Q3 = p0 * 481.5662777
The momenta for Q1, Q2, and Q3 are set to the first carbon scan, i.e., E0 = 1.720, p0 = 1.720GeV.
According to the table septa current should be 481A, while the existing setting is 528A.
19:33 --- MCC is going to send us tuned beam.
19:37 --- Alexandre called. They are going to do some test over at the injector; he will let us
know when we can put target in and start taking data.
20:00 --- Right arm momntum was set to the first value in table "Carbon Inelastic Scan".
It states Septa current as 481A, while the set current is 528A. With Aidan's approval
changed current on both septa to 481A.
20:38 --- Still waiting for beam.
20:55 --- MCC called to let us know that the RF separation power supply was dead.
They are waiting for the expert to come and fix the PS and cannot give us any stimation
when it is going to happen.
23:25 --- MCC called for BTA. The BTA for Hall A is not working properly; it doesn't allow
any editing. The ABU and BANU for this shift are:
ABU = 0 , BANU = 1.7244
23:50 --- MCC called. They are trying to send us tuned beam.
00:06 --- No beam yet.