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User name Mitra
Log entry time 00:05:28 on December17,2011
Entry number 360326
keyword=Swing shift Summary 12/16/2011
Shift crew:
SL: Mitra Shabestari
TO: Konrad Aniol
3rd: Chunhua Chen
16:00 --- Hall is in controlled access. Jack and other people are in the hall.
18:57 --- Jack is back and he fixed the problem, so we should be able to move
LHRS remotely.
17:20 --- Called MCC and going to power permit now.
19:26 --- We are in beam permit. MCC is going to send in tuned beam.
19:38 --- We started taking data.
Plan for the rest of the shift is as following:
(1) Take 1-hour run: C target IN, raster OFF.
(2) Take 1-hour run: C target IN, raster ON (raster should be +/-1 on spot++).
(3) Take 1-hour run: C target OUT, raster ON (raster should be +/-1 on spot++).
Beam current = 1 muA.
NOTE: To set the momenta 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.
20:16 --- Beam is down. Put target in and changed left arm momentum to setting #3,
so Melissa can do the HV Cerenkov and pion rejector test and gain matching
for LHRS and
20:35 --- Beam is back at 1 muA and we started taking data with C target IN, raster OFF,
for kinematics #3 (P0 = 1.556 GeV)
20:59 --- No beam for a while.
21:00 --- Beam is back.
23:12 --- The septa currents were not in proper setting for LHRS gain matching, so we
changed it from 481A to 435A, and going to take a few runs with 435A.