User name R. Michaels
Log entry time 13:26:33 on June12,2005
Entry number 145939
This entry is a followup to: 145938
keyword=coinc. timing is okAll I did (halog 145555) was move the randoms over. I didn't include
the plot that proves all is well because I figured anyone could see
it was an improvement. But anyway, here it is (fig 1) for run 4426.
Compared with the D.ctimel spectrum before the adjustment (halog
145508) you can see why I made the change and that it was indeed
an improvement.
Note:
a) The physical peaks did not move -- as expected. They go where
they go due to fixed cable lengths.
b) The width of the randoms is the same -- as expected. That is
determined by the widths of T1 and T3 which I did not change.
c) The randoms moved over 16 nsec to the right -- as expected. This
gives more "breathing room" for the peaks. Admittedly, if your
physics was at channel <= 1500 in this distribution then it did get
chopped off by the change. But I suppose that's not your problem.
Fig 1 is for run 4426.
FIGURE 1
