E852 Detectors: Beam Line Detectors Tuning

E852 Detectors: Beam Line Detectors Tuning



           Date            HV    threshold Efficiency  Hot Wires  Dead Wires
                                         single+double
#1

A1X1: 21-Jan-1995 03:20   4.0       250      86+12%        no       no
      28-Jan-1995 18:00   4.0       150      92+ 4%        no       no
A1X2: 21-Jan-1995 03:20   4.0       250      85+10%        no       no
      28-Jan-1995 18:00   4.0       150      88+ 4%        no       no
H1X:   1-Jan-1995 00:00   1.15      ???      72+11%        no      wire 16
      21-Jan-1995 03:20   1.3       same     41+50%        no      wire 16
      24-Jan-1995 11:45   1.15      same     73+11%        same    same         decrease HV to see what will happen
      24-Jan-1995 23:45   1.3                                                   back to the higher HV to gain efficiency

#2

A2X1: 21-Jan-1995 03:20   4.0       250      88+ 9%        no       no
      28-Jan-1995 03:20   4.0       150      93+ 2%        no       no
A2X2: 21-Jan-1995 03:20   4.0       400      55+26%      wire 57    no
      21-Jan-1995 23:30   4.0       150      56+30%      wire 57    no
      26-Jan-1995 18:30   4.0        76      37+29%      wire 57    no          attempt to improve efficency. Failed.
      27-Jan-1995 ??:??   4.0       150      30+ 5%      wire 57    no
H2X:   1-Jan-1995 00:00   1.0       ???      82+ 3%        no       no
      21-Jan-1995 03:20   1.1       same     89+ 4%        no       no
      24-Jan-1995 11:45   1.0       same     83+ 4%        same     same
      24-Jan-1995 23:45   1.1                                                   back to the higher HV to gain efficiency

#3

A3X1: 21-Jan-1995 03:20   4.0       150      83+ 8%        no       no
A3X2: 21-Jan-1995 03:20   4.0       150      84+ 8%        no       no
H3X:  21-Jan-1995 03:20   0.9       ???      92+ 2%        no       no

#4

A4X1: 21-Jan-1995 03:20   4.0       100          ?%        no       no
A4X2: 21-Jan-1995 03:20   4.0       100       ?+ ?%        no       no
H4X:   1-Jan-1995 00:00   0.9       2.5      83+ 5%        no      wire ~15
      20-Jan-1995 16:00   0.9       1.8       ?+ ?%        no      wire ~15

#5

A5X1: 21-Jan-1995 03:20   4.0       250      89+ 6%        no       no
A5X2: 21-Jan-1995 03:20   4.0       250      90+ 6%        no       no
H5X:  21-Jan-1995 03:20   1.25      ???      84+ 8%        no       no

A5Y1: 21-Jan-1995 03:20   4.0       150      85+ 8%       yes       no
A5Y2: 21-Jan-1995 03:20   4.0       150      53+26+17%    yes     wire ~91, ~14
H5Y:  21-Jan-1995 03:20   1.15      ???      93+ 3%        no       no

#6

A6X1: 21-Jan-1995 03:20   4.0       100      89+ 6%        no       no
A6X2: 21-Jan-1995 03:20   4.0       100      90+ 6%       yes       no
H6X:  21-Jan-1995 03:20   1.0       ???      84+ 8%        no       no

A6Y1: 21-Jan-1995 03:20   4.0       250      73+10%        no       no
A6Y2: 21-Jan-1995 03:20   4.0       250      50+30+11%     no       no
H6Y:   1-Jan-1995 00:00   0.9       2.3      84+ 2%        no       no
      19-Jan-1995 ??:??   0.9       1.7      88+ 2%        no       no





CO 21-Jan-1995

DPW 24-Jan-1995