Difference between revisions of "Beam Test Jul 26 2012"

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|  3685  || in || out || out|| (DL & GunTrig) AND (DR & GunTrig) || 1150V || 1150V || 100 || 11:26:43 || 11:31:01 || 18 events/s|| junk, rate are too high.
 
|  3685  || in || out || out|| (DL & GunTrig) AND (DR & GunTrig) || 1150V || 1150V || 100 || 11:26:43 || 11:31:01 || 18 events/s|| junk, rate are too high.
 
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|  3686  || in || in || out|| (DL & GunTrig) AND (DR & GunTrig) || 1150V || 1150V || 100 || 11:26:43 || 11:31:01 || 18 events/s|| we changed the discriminator to 8 CH CFD.
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We changed the discriminator from Octal discriminator (LeCroy modle 623B) to 8 CH CFD (CAEN model N842). The threshold on the detector beam left is 29, and on the detector right is 31.
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{| border="1"  |cellpadding="20" cellspacing="0
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|  run#  || T1 || T2 || Sweep Magnet|| logic || HV-D2L || HV-D1R || Reprate  || start || stop || Int Rate ||comments
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|  3686  || in || in || out|| (DL & GunTrig) AND (DR & GunTrig) || 1150V || 1150V || 100 || 11:54:44 || :: || 4.7 events/s|| we changed the discriminator to 8 CH CFD.
 
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Revision as of 18:00, 26 July 2012

Tune

Energy Switch Out (High En)
Solenoid 1 13.9 A
Solenoid 2 4.1 A
Gun Hor -0 A
Gun Ver +0.2 A
Output Hor -0.3 A
Output Ver -0 A
Rep Rate 17
Gun HV 10 (Knob Setting)
Gun Grid Voltage 10 (Knob Setting)
RF frequency 2856.321 MHz
Modulator HV Power Supply 4.19 (Knob Setting)
RF macro Pulse Length (FWHM) 300 ns
Q1 (A) -3
Q2 (A) +0.8
Q3 (A) +2
Q4 (A) 0
Q5 (A) 0
Q6 (A) 0
Current at FC0 96 mA


DAQ runs

TDC CH5 was a delay of (32+16+8+4+2+1+0.5)+ (16+8+4+2+1+0.5) = 95 nano second.

run# T1 T2 Sweep Magnet logic HV-D2L HV-D1R Reprate start stop Int Rate comments
3679 in in out (DL & GunTrig) or (DR & GunTrig) 1060V 1080V 100 08:48:00 09:28:01 42.3 events/s ADC12 has Sintilator1 (Sint @ exit of 90 deg).
3680 in OUT out (DL & GunTrig) or (DR & GunTrig) 1060V 1080V 100 09:29:37 09:46:19 42.6 events/s ADC12 has Sintilator1 (Sint @ exit of 90 deg).
3682 in OUT out (DL & GunTrig) AND (DR & GunTrig) 1150V 1150V 100 09:55:20 10:33:56 4.8884 events/s TDC cable was upside down, now it is flipped. Sintilator left was put to CH9.
3683 in IN out (DL & GunTrig) AND (DR & GunTrig) 1150V 1150V 100 10:36:03 10:53:48 5.9397 events/s TDC5->beam left
3684 in IN out (DL & GunTrig) AND (DR & GunTrig) 1150V 1150V 100 10:54:19 11:25:01 8.7974 events/s TDC3->beam right, TDC5->beam left
3685 in out out (DL & GunTrig) AND (DR & GunTrig) 1150V 1150V 100 11:26:43 11:31:01 18 events/s junk, rate are too high.

We changed the discriminator from Octal discriminator (LeCroy modle 623B) to 8 CH CFD (CAEN model N842). The threshold on the detector beam left is 29, and on the detector right is 31.

run# T1 T2 Sweep Magnet logic HV-D2L HV-D1R Reprate start stop Int Rate comments
3686 in in out (DL & GunTrig) AND (DR & GunTrig) 1150V 1150V 100 11:54:44 :: 4.7 events/s we changed the discriminator to 8 CH CFD.