Proton Calorimetry/Experimental Runs/2020/Nov12: Difference between revisions
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Revision as of 11:08, 16 November 2020
First prototype DDC232 board with Hamamatsu S1337-16BR photodiodes exposed to small amounts of ambient daylight.
Aim: Investigate performance of DDC232 board with different integration times and full-scale range (FSR) out of detector setup and with uniform light source (daylight).
Notes
- Each run took approximately 20,000,000 bytes of data, corresponding to about 240,000 samples.
- Data was taken in afternoon and during sunset, therefore latter measurements had a smaller absolute amount of light. Measurements with 2000 us were essentially dark measurements.
- Analysis involves histograms of measured values by channel and by photodiode, where channels corresponding to the same photodiode were summed before histogram. Additionally, evolution of measured value with sample number was also investigated.
Data saved in unix/pbt/data/ucl/20201112/
Run | Integration time (us) | FSR (pC) | Notes | |
---|---|---|---|---|
1 | 170 | 350 | ||
2 | 170 | 300 | ||
3 | 170 | 250 | Large variation in sunlight | |
4 | 170 | 200 | ||
5 | 170 | 150 | ||
6 | 170 | 100 | ||
7 | 170 | 50 | ||
8 | 170 | 12.5 | ||
9 | 1000 | 350 | ||
10 | 1000 | 300 | ||
11 | 1000 | 250 | ||
12 | 1000 | 200 | ||
13 | 1000 | 150 | ||
14 | 1000 | 100 | ||
15 | 1000 | 50 | ||
16 | 1000 | 12.5 | ||
17 | 2000 | 350 | ||
18 | 2000 | 300 | ||
19 | 2000 | 250 | ||
20 | 2000 | 200 | ||
21 | 2000 | 150 | ||
22 | 2000 | 100 | ||
23 | 2000 | 50 | ||
24 | 2000 | 12.5 |