Difference between revisions of "Beam Test Jul 27 2012"
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| 3720 || in || in || out|| (DL & GunTrig) & (DR & GunTrig) || 1150V || 1150V || 200 || 11:29:52|| 11:44:55 || 5.069 events/s|| | | 3720 || in || in || out|| (DL & GunTrig) & (DR & GunTrig) || 1150V || 1150V || 200 || 11:29:52|| 11:44:55 || 5.069 events/s|| | ||
|- | |- | ||
| − | | 3721 || in || in || out|| (DL & GunTrig) & (DR & GunTrig) || 1150V || 1150V || 200 || 12:02:31|| 12:17:32 || 3.9 events/s|| | + | | 3721 || in || out || out|| (DL & GunTrig) & (DR & GunTrig) || 1150V || 1150V || 200 || 12:02:31|| 12:17:32 || 3.9 events/s|| |
| + | |- | ||
| + | | 3722 || in || in || out|| (DL & GunTrig) & (DR & GunTrig) || 1150V || 1150V || 200 || 12:02:31|| 12:17:32 || 3.9 events/s|| | ||
|- | |- | ||
|} | |} | ||
Revision as of 18:24, 27 July 2012
Tune
| Energy Switch | Out (High En) |
| Solenoid 1 | 12.4 A |
| Solenoid 2 | 7.3 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 | 2856.315 MHz |
| Modulator HV Power Supply | 4.19 (Knob Setting) |
| RF macro Pulse Length (FWHM) | 300 ns |
| Q1 (A) | -3 |
| Q2 (A) | +0 |
| Q3 (A) | +2 |
| Q4 (A) | 0 |
| Q5 (A) | 0 |
| Q6 (A) | 0 |
| Current at FC0 | 100 mA |
Beam Current Calibration of Scint Left
Determine if the Beam Left Scintillator is linear with beam current.
Determine if the Beam Left Scintillator is linear with beam current.
Beam Current Calibration of Scint Left
Determine if the Beam Left Scintillator is linear with beam current.
| run# | Scope Pics | FC1 area nVs | Scint L area nVs | Scint Left (Ch9) | Reprate | start | stop | Int Rate | comments |
| 3703 |   |
1127.75 .7 | 100 | 08:38:24 | 08:41:52 ( s) | 38.4 events/s | first measurement at full current | ||
| 3705 |   |
782.5 1 | 100 | 09:01:10 | 09:04:29 ( s) | 38.47 events/s | cut the current in half | ||
| 3706 |   |
239.1 0.6 | 100 | 09:08:40 | 09:12:13 ( s) | 38 events/s | cut the current to its 1/4 th | ||
| 3707 |   |
100 | 09:16:19 | 09:21:24 ( s) | 38.5 events/s | cut the current to its 1/8 th |
1. T1 out, disable D1 (Q4,Q5,Q6 too), send the beam to FC0, take scope image of the area.
2. T1 in, enable D1 (Q4,Q5,Q6 too), bend the beam by 90 deg, take a run with 1000 events.
1.22 nV s /ADC channel
Energy calibration of Scint 1
With T1 ande T2 out, send 1,2,6, and 10 MeV electrons to Scintillator 1 located at the end of the 90 degree beam line
HV=1300
| run# | Electron Energy (MeV) | Attenuation (dB) | ADC2 |
| 3714 | 10 | 27.5 | 3009 |
| 3715 | 6 | 27.5 | 2935 |
| 3716 | 4 | 27.5 | 3018 |
Inserted gun triggers into Scaler channel 2
Resume positron production using 10 MeV eletrons
Insert Gun trigger into VME scaler
Set D2 for 2 MeV
| run# | T1 | T2 | Sweep Magnet | logic | HV-D2L | HV-D1R | Reprate | start | stop | Int Rate | comments |
| 3719 | in | in | out | (DL & GunTrig) & (DR & GunTrig) | 1150V | 1150V | 200 | 11:03:02 | 11:21:58 | 4.2 events/s | |
| 3720 | in | in | out | (DL & GunTrig) & (DR & GunTrig) | 1150V | 1150V | 200 | 11:29:52 | 11:44:55 | 5.069 events/s | |
| 3721 | in | out | out | (DL & GunTrig) & (DR & GunTrig) | 1150V | 1150V | 200 | 12:02:31 | 12:17:32 | 3.9 events/s | |
| 3722 | in | in | out | (DL & GunTrig) & (DR & GunTrig) | 1150V | 1150V | 200 | 12:02:31 | 12:17:32 | 3.9 events/s |