Log entry time 08:13:00 on October27,2005

Entry number 158152

♠ Øwl $hift §ummary ♠



0000:0030   taking over from swing shift, HAPPEX run 5921

0030:0130   happex run 5922

0130:0228   happex run 5923

0228:0325   happex run 5924

0325:0424   happex run 5925

0424:0521   happex run 5926

0521:0618   happex run 5927

0618:0717   happex run 5928

0655:0720   RF problems, see HALOG 158141

0721:0800   happex run 5929 ended early due to right septum trip, see HALOG 158149



‡ How does it feel, to be on your OWL ‡

                                   number of Pecan Sandies eaten

first     last      time on shift     total        avg per hour

Evaristo  Cisbani   0000:0800            1             0.125

Salvatore Frullani  0000:0800            2             0.250

Jaideep   Singh     0000:0800            4             0.500

Ryan      Snyder    0000:0530           24             4.364



€xperimental Parameters



beam current = 58.0 ± 0.2 µA

target = LH2 in Loop 2 [T=19.00 ± 0.02 K, P=23.3 ± 0.2 psi, ν = 90.92 ± 0.02 Hz]

left  HRS (set) = 3.12340 GeV/c

left  septum (set) = 323.61 A

right HRS (set) = 3.11260 GeV/c

right septum (set) = 316.92 A

sweeper magnet (set) = 111.0 A



ℜuns Summary



happex time   run#  type        BHWP  good pairs

2324:0030     5921  production  IN    37459

0034:0130     5922  production  IN    44455

0132:0228     5923  production  IN    39791

0230:0325     5924  production  IN    41087

0328:0424     5925  production  IN    39307

0425:0521     5926  production  IN    38948

0521:0618     5927  production  IN    41113

0621:0717     5928  production  IN    24616

0721:0745     5929  production  IN    10031



$hift productivity ≅ 0.701

estimated "two-arm" production ≅ 1.197 C



compton time        run#    Pe·Pγ or comments

2306:0113           12526   -86.0%

0125:0331           12527   -85.7%

0334:0541           12528   -86.7%

0547:0755           12529   -86.8%