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S30XL-LESA/LDMX
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Collimator scattering at JLab - link
Pre-NLCTA beam test slides from Pelle - link
Summary of results from beam test from Pelle - link
Sensor probing results in lab - link
Calibration and lab tests after pulling wirebonds from Omar - link
10pC:
100pC:
Beam spot for one of them as example:
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10:37
Move in foils one by one and observe beam spot on phosphor screen. Picture and extracted spot size at each thickness can be seen below. The screen is about 75cm downstream of the exit window.
# foils | Tiff | FWHM |
---|---|---|
0 |
| |
1 |
| |
2 |
| |
3 |
| |
4 |
| |
5 |
| |
6 |
|
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Runs taken, all at 6 foils:
Time | Bunch charge (pC) | ADC1 | Bias (V) | Ileak (uA) |
---|---|---|---|---|
~11:00 | ?~0.001 | - | 180 | 10 |
11:36 | 1.0 | 0.002 | 180 | 17 |
| 1.0 | 0.002 | 250 | 22 |
| 1.0 | 0.002 | 350 | 22 |
| 1 | 0.002 | 400 | 38 |
| 1 | 0.002 | 500 | 21 |
12:00 | 10 | 0.01 | 180 | 6 |
| 10 | 0.01 | 350 | 7 |
| 10 | 0.01 | 500 | 50 |
| 100 | 0.135 | 180 | 7 |
| 100 | 0.135 | 250 | 6 |
| 100 | 0.135 | 350 | 14 |
11:36
Everything looks ok for 1pC setting.
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