Difference between revisions of "05/13/2011 coincidence test"
Jump to navigation
Jump to search
| Line 5: | Line 5: | ||
[[File:Detector1.png | 400px]] | [[File:Detector1.png | 400px]] | ||
| + | the distance between PS and n's PMT is abot 80 cm | ||
| − | The voltages and thresholds are: | + | |
| + | 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. | ||
{| border="1" cellspacing="0" style="text-align: center; width: 800px; height: 100px;" | {| border="1" cellspacing="0" style="text-align: center; width: 800px; height: 100px;" | ||
! scope="col" width="50" | | ! scope="col" width="50" | | ||
| Line 21: | Line 23: | ||
|-1500||-200 | |-1500||-200 | ||
|} | |} | ||
| − | + | ||
:▫ PS1 and PS2: -1000 V | :▫ PS1 and PS2: -1000 V | ||
Revision as of 21:06, 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 | ||
| PS2 | ||
| n's det |
- ▫ 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 |