Log entry time 08:07:04 on November14,2005

Entry number 160082

Owl Shift Summary



Back to production at the beginning of the shift after a long down due to problems on ACC side.

Taking production and we're told to let the day shift worry about a profile scan.

SLUG 32 (OUT) total so far = 547.5 kilopairs



Owl Shift Log



0000:0010     preparing to resume production, HALOG 160060

0010:0108     happex run 6403

0108:0204     happex run 6404

0204:0300     happex run 6405

0300:0356     happex run 6406

0356:0453     happex run 6407

0453:0550     happex run 6408

0532:0558     beam gone for QE measurement among other things

0550:0647     happex run 6409

0647:0744     happex run 6410

0744:0800     happex run 6411 handed over to day shift



People on Shift



Jaideep Singh

Al Tobias



Experimental Parameters



beam current = 57.6 +/- 0.2 microamps

target = LH2 in Loop 2 [T = 19.00 +/- 0.02 K, P = 23.8 +/- 0.2 psi, fan frequency = 90.92 +/- 0.02 Hz]

left  HRS (set) = 3.12340 GeV/c          right HRS (set) = 3.11260 GeV/c

left  septum (set) = 323.61 A            right septum (set) = 316.92 A

sweeper magnet (set) = 111.0 A



Runs Summary



happex time   run#  type        BHWP  equivalent "ok" two-arm pairs

0010:0108     6403  production  OUT   34276, 7.4% BPM saturated pairs probably due to gain search after long beam down

0109:0204     6404  production  OUT   35514

0205:0300     6405  production  OUT   45631, a top 5 run!

0301:0356     6406  production  OUT   33168

0357:0453     6407  production  OUT   39807

0453:0550     6408  production  OUT   22702, beam gone for QE measurement, a few helicity errors

0552:0647     6409  production  OUT   32994

0648:0744     6410  production  OUT   35770

0745:xxxx     6411  production  OUT   ?



total number of "ok" pairs     = 279.9 kilopairs

estimated "two-arm" production = 1.048 C

estimated shift productivity   = 69.9 percent



compton time  run#    (beam polarization)*(photon polarization) [stat err only] or comments

0039:0230     12853   +(87.3 +/- 0.8)%, ended early b/c ROC1 died

0242:0445     12854   +(89.1 +/- 0.6)%, ended early b/c ROC2 died

0509:0715     12855   +(88.7 +/- 0.6)%, end run failed, coda reboot

0726:xxxx     12856   ?