Difference between revisions of "Beam Test Jul 26 2012"
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| 3687 || in || out || out|| (DL & GunTrig) AND (DR & GunTrig) || 1150V || 1150V || 100 || 12:19:15 || 12:43:14 || 3.6 events/s|| TDC3->DL, TDC5->DR || | | 3687 || in || out || out|| (DL & GunTrig) AND (DR & GunTrig) || 1150V || 1150V || 100 || 12:19:15 || 12:43:14 || 3.6 events/s|| TDC3->DL, TDC5->DR || | ||
|- | |- | ||
| − | | 3688 || in || in || out|| (DL & GunTrig) AND (DR & GunTrig) || 1150V || 1150V || 100 || 12:44:09 || :: || events/s|| TDC3->DL, TDC12->DR || | + | | 3688 || in || in || out|| (DL & GunTrig) AND (DR & GunTrig) || 1150V || 1150V || 100 || 12:44:09 || :: || events/s|| TDC3->DL, TDC12->DR || switched DR from TDC5 to TDC12 |
|- | |- | ||
|} | |} | ||
Revision as of 18:42, 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 Constant Fraction Discriminator (CFD) (CAEN model N842). The threshold on the detector beam left is 29, and on the detector right is 31.
Following is the image of coincidence of left and right detectors using this CFD.
| run# | T1 | T2 | Sweep Magnet | logic | HV-D2L | HV-D1R | Reprate | start | stop | Int Rate | Connections | comments |
| 3686 | in | in | out | (DL & GunTrig) AND (DR & GunTrig) | 1150V | 1150V | 100 | 11:54:44 | 12:15:44 | 4.8262 events/s | TDC3->DL, TDC->DR | |
| 3687 | in | out | out | (DL & GunTrig) AND (DR & GunTrig) | 1150V | 1150V | 100 | 12:19:15 | 12:43:14 | 3.6 events/s | TDC3->DL, TDC5->DR | |
| 3688 | in | in | out | (DL & GunTrig) AND (DR & GunTrig) | 1150V | 1150V | 100 | 12:44:09 | :: | events/s | TDC3->DL, TDC12->DR | switched DR from TDC5 to TDC12 |