Difference between revisions of "05/09/2011"
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| − | + | Let see what we have. First without CF-243 source: | |
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| + | {| border="1" cellspacing="0" style="text-align: center; width: 500px; height: 500px;" | ||
| + | |+ '''Table1. Voltage gain vs. frequency measurements''' | ||
| + | |- | ||
| + | ! scope="col" width="50" | | ||
| + | ! scope="col" width="50" | counts/min | ||
| + | ! scope="col" width="50" | counts/min | ||
| + | ! scope="col" width="50" | counts/min | ||
| + | |- | ||
| + | |PS1 ||153 counts/min ||170 counts/min | ||
| + | |- | ||
| + | |PS2 ||150 counts/min ||173 counts/min | ||
| + | |- | ||
| + | |n's ||358 counts/min | ||
| + | |- | ||
| + | |PS1+PS2 ||3.8 ||5.8 ||6.0 | ||
| + | |} | ||
Revision as of 03:16, 10 May 2011
I did some counts test like:
The powers were:
PS1 and PS2: -1000 V n's: -1100 V
The PMT for n's detectors is PMT HAMAMATSU R580 with supply voltage 1250/1500 V. But I have used the value above, because I though the counts rate was reasonable. See my table below.
The thresholds were:
PS1 and PS2: -80 mV n's: -60 mV
Let see what we have. First without CF-243 source:
| counts/min | counts/min | counts/min | |
|---|---|---|---|
| PS1 | 153 counts/min | 170 counts/min | |
| PS2 | 150 counts/min | 173 counts/min | |
| n's | 358 counts/min | ||
| PS1+PS2 | 3.8 | 5.8 | 6.0 |