Difference between revisions of "05/13/2011 timing test"

Revision as of 05:38, 19 May 2011

Set up like that:

The voltages, thresholds and widths are:

Let's do the timing test. The distances are between PS1+PS2 and n's PMT. The time is time difference between PS1(PS2) and n's detector signals

As the distance becomes 10 cm and less the coincidence rate becomes very low. I have:

▫ 10 cm: PS1+PS2+n 11 coinc/98 min, coinc/min

▫ 5 cm: PS1+PS2+n 103 coinc/890 min, coins/min

▫ 5 cm: PS1 118182 coinc/890 min, coins/min

▫ 5 cm: PS2 138573 coinc/890 min, coins/min

Below is the plot of measured time as function of distances:

▫ plot for first 10 events (measurements on May 13, 2001)

▫ plot for last 20 events (measurements on May 16, 2001)

▫ combined plot for total 30 events

@@ Line 44: / Line 44: @@
 :▫ plot for last 20 events (measurements on May 16, 2001)
 :▫ combined plot for total 30 events
-{| border="0" cellspacing="0" style="text-align: center; width: 1050px; height: 100px;"
-|[[File:Timing 1 10.png | 500px]] || [[File:Timing 11 30.png | 500px]]
-|-
-!colspan="6" | [[File:Timing total 30.png | 1000 px]]
-|}