From: Xu, Zhangbu (xzb_at_bnl.gov)
Date: Sat Mar 08 2003 - 10:04:12 EST
Hi,
There are some UPC trigger test which should give nothing in pVPD or TOF.
We have about 15% inefficiency in the trigger, this is likely due to
TOF daq deadtime. If this is true, it is much higher than 5us. Anyone knows
what happens.
Thanks!
Zhangbu
-----Original Message-----
From: W.J. Llope
To: tofp_at_physics.rice.edu
Sent: 3/8/2003 8:51 AM
Subject: last night's data
(localmon_to4067002.dat)
Found 8529 beam events out of 37862 >>--> ratio = 0.225265
-> local trigger efficiency a bit lower. suspect this may be
due to some test/pedestal runs (upccombined etc) going into
same localmon file... something to keep an eye on....
hit patterns look fine.
_________________________________________________________
W.J. Llope, Ph.D. Res. Assoc. Professor
http://wjllope.rice.edu/default.html
llope_at_physics.rice.edu
T.W. Bonner Nuclear Lab.
Rice University, MS-315
6100 S. Main phone: 713-348-4741
Houston, TX 77005-1892 fax: 713-348-5215
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