Log entry time 08:00:22 on March 29, 2012

Entry number 368013

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


Runs Taken:

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

Dilution Runs:
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