Beam Test Jul 19 2012
Tune up 10 MeV on the zero line.
Insert Tungsten target and do a dipole scan to determine relative yield as a function of energy. Attempt to measure relative yield using integral of thick scintillator output for constant current and energy slit setting.
10 MeV Tune
| Energy Switch | Out (High En) |
| Solenoid 1 | 6.2 A |
| Solenoid 2 | 3.3 A |
| Gun Hor | -0.2 A |
| Gun Ver | 0 A |
| Output Hor | -0.3 A |
| Output Ver | 0 A |
| Rep Rate | 8 |
| Gun HV | 10 (Knob Setting) |
| Gun Grid Voltage | 10 (Knob Setting) |
| RF frequency | 2856.320 MHz |
| Modulator HV Power Supply | 4.28 (Knob Setting) |
| RF macro Pulse Length (FWHM) | 300 ns |
| Q1 (A) | -3.7 |
| Q2 (A) | -5.5 |
| Q3 (A) | +0.6 |
Counting single pulse
Settings
Gun Grid Voltage knob setting: 2.85
| Energy Switch | Out (High En) |
| Solenoid 1 | 6.2 A |
| Solenoid 2 | 3.3 A |
| Gun Hor | -0.2 A |
| Gun Ver | 0 A |
| Output Hor | -0.3 A |
| Output Ver | 0 A |
| Rep Rate | 8 |
| Gun HV | 10 (Knob Setting) |
| Gun Grid Voltage | 2.85 (Knob Setting) |
| RF frequency | 2856.320 MHz |
| Modulator HV Power Supply | 4.28 (Knob Setting) |
| RF macro Pulse Length (FWHM) | 300 ns |
| Q1 (A) | -3.7 |
| Q2 (A) | -5.5 |
| Q3 (A) | +0.6 |
| W1 | Sweeping magnet | D1 (A) | D2 (A) | Mode | Jaw width (cm) | Sintilator HV | q4 (A) | q5 (A) | q6 (A) | q7 (A) | q8 (A) | q9 (A) | q10 (A) | conditions |
| in | out | 4.2 | 4.2 | 2 MeV e- | 1 | 1219 V | +1 | -0 | -0.1 | -0 | +1.3 | +0.5 | -0 | D1 & D2 set to 2 MeV e-
|
Optimization of the magnets in positron mode:
q4 q5 q6 q7 q8 q9 q10 counts / time (s) Rate (Hz) +1.0 -0.0 -0.1 +4.0 +1.0 +0.5 -0.0 740 / 201.4 3.67 +1.0 -0.0 -0.1 +4.5 +1.0 +0.5 -0.0 611 / 149.9 4.08 +1.0 -0.0 -0.1 +5.0 +1.0 +0.5 -0.0 360 / 100 3.6 +1.0 -0.0 -0.1 +4.7 +1.0 +0.5 -0.0 309 / 80.1 3.86 +1.0 -0.0 -0.1 +4.3 +1.0 +0.5 -0.0 220 / 60.1 3.66 +1.0 -0.0 -0.1 +4.5 +1.0 +0.5 -0.0 202 / 50.1 4.03 +2.0 -0.0 -0.1 +4.5 +1.0 +0.5 -0.0 194 / 49.2 3.94
+0.0 -0.0 -0.1 +4.5 +1.0 +0.5 -0.0 223 / 50.2 4.44
-0.5 -0.0 -0.1 +4.5 +1.0 +0.5 -0.0 192 / 50 3.84 -0.2 -0.0 -0.1 +4.5 +1.0 +0.5 -0.0 242 / 60 4.03 +0.5 -0.0 -0.1 +4.5 +1.0 +0.5 -0.0 394 / 90.2 4.37 +0.2 -0.0 -0.1 +4.5 +1.0 +0.5 -0.0 272 / 69.9 3.89
+0.0 -0.0 -0.1 +4.5 +1.0 +0.5 -0.0 472 / 99.9 4.72
+0.0 -0.0 -0.0 +0.0 +0.0 +0.0 -0.0 133 / 50.2 2.65 +0.0 -0.0 -0.0 +4.5 +0.0 +0.0 -0.0 167 / 50.0 3.34
-0.0 +0.0 -0.1 +4.5 -0.0 -0.0 +0.0 193 / 60.0 3.22 -0.0 +0.0 +0.0 +4.5 -0.0 -0.0 +0.0 148 / 50.1 2.95 -0.0 +0.0 +0.1 +4.5 -0.0 -0.0 +0.0 162 / 50.0 3.24 -0.0 +0.0 +0.2 +4.5 -0.0 -0.0 +0.0 179 / 50.0 3.58 -0.0 +0.0 +0.3 +4.5 -0.0 -0.0 +0.0 185 / 49.9 3.71 -0.0 +0.0 +0.5 +4.5 -0.0 -0.0 +0.0 184 / 49.9 3.69 -0.0 +0.0 +0.7 +4.5 -0.0 -0.0 +0.0 154 / 50.1 3.07
-0.0 +0.0 +0.4 +4.5 -1.0 -0.0 +0.0 208 / 50.0 4.16
-0.0 +0.5 +0.4 +4.5 -1.0 -0.0 +0.0 911 / 180.1 5.06
Dipole test
D1 q4 q5 q6 q7 q8 q9 q10 counts / time (s) Rate (Hz) 0 -0.0 +0.5 +0.4 +4.5 -1.0 -0.0 +0.0 423 / 109.9 3.85
Daq Runs
Detector left (Det2) is at CH6. Detector right (Det3) is at CH5.
Run# Reprate T1 T2 Start Time Stop Time Int Rate 3593 100 in in 13:47:22 pm 14:23:46 pm 1.46 3594 100 in out 14:24:39 14:46:44 2.78
Run 3613 HV NaI Beam Left = 1080