Make New Entry,
Make Followup Entry
User name M. Cummings
Log entry time 08:00:22 on March 29, 2012
Entry number 368013
keyword=Owl Shift Summary
Owl Shift Summary
SL: Melissa Cummings
TO: Mikhail Yurov
3rd: Jechiel Lichtenstadt
00:00 Start of shift, hall is in controlled access to remove sieve slit.
00:10 Sieve is OUT, going back to beam permit.
00:15 Alaexandre starts his BCM calorimeter runs
00:35 Start target polarization
01:25 Target polarized to 40%, calling for 50nA
01:30 RHRS has very low rate (~2kHz) compared to ~100kHz on the LHRS. dp
variables look similar on left/right. Beam position is still centered.
03:30 Called for escorted access to check that sieve slit is actually
out. It seems the Right sieve slit was in fact still in.
03:50 Back in Beam Permit, asked for 50nA. RHRS rate seems back to
normal, start taking production data.
05:30 Done with elastic setting. Taking dilution runs.
06:30 Done with dilution runs. Change L&R HRS dipole settings to 2.072.
Change Left Septum current to 661.3 A and Right Septum Current to 735.1 A
07:15 MCC is tuning beam into Hall B, will be down for a little while.
08:00 End of Shift, still waiting for MCC to finish tuning into Hall B.
Ready to start taking data for p=2.072
p = 2.228
3440/40488 HWP IN
3444/22477,22478/40490 HWP OUT, Beam trip at end of run
3445/22479/40491 HWP OUT
3446/22480/40492 HWP OUT
Carbon w/ He, Slow Raster on: 3447/22481/40493
Dummy w/ He, Slow Raster on: 3448/22482/40494
Empty w/ He, Slow Raster on: 3449/22483/40495
Carbon w/ He, Slow Raster off: 3453/22487/40500
Dummy w/ He, Slow Raster off: 3452/22486/40499
Empty w/ He, Slow Raster off: 3451/22485/40498