Difference between revisions of "05/13/2011 coincidence test"
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| -1500|| -200 | | -1500|| -200 | ||
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!PS1 | !PS1 | ||
| − | | | + | |2823<math>/pm</math>||20 min||<math>/pm</math> |
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!PS2 | !PS2 | ||
| − | | | + | |3091<math>/pm</math>||20 min||<math>/pm</math> |
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!PS1+PS2 | !PS1+PS2 | ||
| − | | | + | |93<math>/pm</math>||20 min||<math>/pm</math> |
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Revision as of 21:40, 13 May 2011
Set up like that:
the distance between PS and n's PMT is abot 80 cm
The voltages and thresholds are as below. Note: I increased my thresholds for PS1 and PS2 from 80 mV up to 100 mV according to mu previous calibration threshold line.
| PMT voltage, V | threshold, mV | |
|---|---|---|
| PS1 | -1500 | -80 |
| PS1 | -1500 | -80 |
| n's | -1500 | -200 |
Let's do first the coincidence test PS1+PS2
| counts | time | counts/sec | |
|---|---|---|---|
| PS1 | 2823 | 20 min | |
| PS2 | 3091 | 20 min | |
| PS1+PS2 | 93 | 20 min |