Beam Test Jul 17 2012
Tune
Used tune from yesterday.
| Energy Switch | Out (High En) |
| Solenoid 1 | 6.9 A |
| Solenoid 2 | 1.3 A |
| Gun Hor | 0 A |
| Gun Ver | +0.2 A |
| Output Hor | +1.2 A |
| Output Ver | 0 A |
| Rep Rate | 8 |
| Gun HV | 10 (Knob Setting) |
| Gun Grid Voltage | 6.42 (Knob Setting) |
| RF frequency | 2856.320 MHz |
| Modulator HV Power Supply | 4.28 (Knob Setting) |
| RF macro Pulse Length (FWHM) | 300 ns |
| Q1 (A) | -10 |
| Q2 (A) | -10 |
| Q3 (A) | 0 |
3 MeV tests
Electron beam tune is same as yesterday, tuned for 11.5 region.
Start from where I left from yesterday. Repeat the last measurement from yesterday, so I can reproduce yesterday's condition, and start from there. Yesterday, the sweeping magnet added to the end of the 3rd triplet magnets to sweep the beam.
The Gun grid voltage was set back to 6.42 (knob Setting), similar as the last run on yesterday.
Dipole En Predictions of Coil Matrix MATLAB Current Inversion Polyfit (Amps) (MeV) (MeV)
5.8000 3.0049 3.0049
| W1 | Sweeping magnet | D1 (A) | D2 (A) | Mode | Jaw width (cm) | q4 (A) | q5 (A) | q6 (A) | q7 (A) | q8 (A) | q9 (A) | q10 (A) | Counts | Time (s) | counts/second | conditions |
| in | out | 0 | 0 | photon | 0.2 | - 2 | +2 | 0 | 0 | 0 | -0.6 | - 0.4 | 1163 | 305.7 | 3.80 | Beam tuned to 0 deg |
| in | out | 0 | -5.8 | positron | 0.2 | - 2 | +2 | 0 | 0 | 0 | -0.6 | - 0.4 | 1401 | 378.5 | 3.70 | Beam tuned to 0 deg |
| in | out | -5.8 | -5.8 | positron | 0.2 | - 2 | +2 | 0 | 0 | 0 | -0.6 | - 0.4 | 1362 | 349.6 | 3.90 | |
| in | out | 0 | 0 | 0.2 | - 2 | +2 | 0 | 0 | 0 | -0.6 | - 0.4 | 1204 | 315.1 | 3.82 | ||
| in | out | -5.8 | 5.8 | 0.2 | - 2 | +2 | 0 | 0 | 0 | -0.6 | - 0.4 | 1292 | 359.8 | 3.59 | ||
| in | out | -5.8 | 5.8 | 0.2 | - 2 | +2 | 0 | 0 | 0 | -0.6 | - 0.4 | 566 | 150.1 | 3.77 | ||
| in | out | 5.8 | 5.8 | electron | 0.2 | - 2 | +2 | 0 | 0 | 0 | -0.6 | - 0.4 | 1417 | 220 | 6.44 | D1 & D2 tuned for 3 Mev electron. Quads are still in positron mode setting. |
| in | out | 5.8 | 5.8 | electron | 0.2 | + 2 | -2 | 0 | 0 | 0 | +0.6 | + 0.4 | 2467 | 219.8 | 11.22 | D1 & D2 tuned for 3 Mev electron. |
| in | out | 5.8 | 5.8 | electron | 0.2 | + 2 | -2 | 0 | 0 | 0 | +0.6 | + 0.4 | 4879 | 450.1 | 10.84 | D1 & D2 tuned for 3 Mev electron. |
2 MeV tests
Similar tune as above, except dipoles are tuned for 2 MeV electrons.
Dipole En Predictions of Coil Matrix MATLAB Current Inversion Polyfit (Amps) (MeV) (MeV) 4.2000 2.0230 2.0230
| W1 | Sweeping magnet | D1 (A) | D2 (A) | Mode | Jaw width (cm) | q4 (A) | q5 (A) | q6 (A) | q7 (A) | q8 (A) | q9 (A) | q10 (A) | Counts | Time (s) | counts/second | Area in the scope | conditions |
| in | out | 4.2 | 4.2 | electron | 0.2 | + 2 | -2 | 0 | 0 | 0 | +0.6 | + 0.4 | 1000 | 275.6 | 3.63 | D1 & D2 tuned for 2 Mev electron. |