Difference between revisions of "05/12/2011"

Revision as of 18:12, 12 May 2011

The powers are:

PS1 and PS2:  -1000 V (the old 2-channel TENNELEC TC952)
n's: -1100 V (the new 2-channel C.A.E.N N471)

The thresholds are:

PS1 and PS2:  -80 mV
n's: -200 mV

The discriminator widths are:

PS1: -20 ns
PS2: -10 ns
n's: -20 ns

Let's do the random coincidence test. PS1 and PS2 is about 30 cm away from each other. And let's look on the coincidence signal between PS1 and PS2:

	counts/sec (5 min test), no source
PS1+PS2	19.89[math]\pm[/math]0.26 (total 5966 cnts)

@@ Line 11: / Line 11: @@
   PS1 and PS2:  -80 mV
   n's: -200 mV
 The discriminator widths are:
@@ Line 20: / Line 19: @@
-Let's do the random coincidence test:
+Let's do the random coincidence test. PS1 and PS2 is about 30 cm away from each other. And let's look on the coincidence signal between PS1 and PS2:
+{| border="1" cellspacing="0" style="text-align: center; width: 800px; height: 100px;"
+! scope="col" width="50" |
+! scope="col" width="50" | counts/sec (5 min test), no source
+|-
+!PS1+PS2
+|19.89<math>\pm</math>0.26   (total 5966 cnts)
+|}