Difference between revisions of "05/13/2011 coincidence test"
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| Line 15: | Line 15: | ||
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!PS1 | !PS1 | ||
| − | | -1500 || -80 | + | | -1500|| -80 |
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!PS1 | !PS1 | ||
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!n's | !n's | ||
| − | |-1500||-200 | + | | -1500|| -200 |
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Revision as of 21:10, 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 |
- ▫ PS1 and PS2: -1000 V
- ▫ n's: -1500 V
The thresholds are:
- ▫ PS1 and PS2: -80 mV
- ▫ n's: -200 mV
Let's do first the coincidence test PS1+PS2
| counts | time | counts/sec | |
|---|---|---|---|
| PS1 | |||
| PS2 | |||
| PS1+PS2 |