Difference between revisions of "Beam Test Jul 27 2012"
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=Beam Current Calibration of Scint Left= | =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. | Determine if the Beam Left Scintillator is linear with beam current. | ||
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| run# || FC1 || Scint Left (Ch9) || Reprate || start || stop || Int Rate ||comments | | run# || FC1 || Scint Left (Ch9) || Reprate || start || stop || Int Rate ||comments | ||
|- | |- | ||
| − | | | + | | 3703 ||[[File:r3703_FC1.png | 100 px]] [[File:r3703_SCNT_L.png | 100 px]] [[File:r3696_FC1.png | 100 px]] || ||100 || 08:38:24 || 08:41:52 ( s)|| 38.4 events/s || first measurement at full current |
|- | |- | ||
| − | | | + | | 3704 || [[File:r3704_FC1.png | 100 px]] [[File:r3704_SCNT_L.png | 100 px]][[File:r3697_FC1.png | 100 px]] || ||100 || 08:51:57 || :: ( s)|| events/s || cut the current in half |
|- | |- | ||
| − | | 3698 || [[File:r3698_FC1.png | 100 px]] || || || 17:: || 17:: ( s)|| events/s || | + | | 3698 || [[File:r3698_FC1.png | 100 px]] || ||100 || 17:: || 17:: ( s)|| events/s || |
|- | |- | ||
| − | | 3699 || [[File:r3699_FC1.png | 100 px]] || || || 17:: || 17:: ( s)|| events/s || | + | | 3699 || [[File:r3699_FC1.png | 100 px]] || ||100 || 17:: || 17:: ( s)|| events/s || |
|} | |} | ||
Revision as of 14:51, 27 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 | 2856.315 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.
| run# | FC1 | Scint Left (Ch9) | Reprate | start | stop | Int Rate | comments |
| 3703 |    |
100 | 08:38:24 | 08:41:52 ( s) | 38.4 events/s | first measurement at full current | |
| 3704 |    |
100 | 08:51:57 | :: ( s) | events/s | cut the current in half | |
| 3698 |  |
100 | 17:: | 17:: ( s) | events/s | ||
| 3699 | 100 px | 100 | 17:: | 17:: ( s) | events/s |
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.
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
Resume positron production using 10 MeV eletrons
Insert Gun trigger into VME scaler