!!!!!tofp problem!!!!!

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From: W.J. Llope (llope_at_physics.rice.edu)
Date: Thu Feb 13 2003 - 09:31:22 EST

guys - -last night's tofp data is NUTSO
        pvpd looks o.k.
        checking tofr but its hit pattern looks o.k.

adc dists - hard to tell w/ so few entries but not
right. above about bin 100, all entries should be red.
this means those adc values are also firing the tdcs...
i see high adc values that apparently ARE NOT also
accompanied by tdc hits.

~1/2 of the TDC dists are FLAT distributions - as if
triggering on noise, or otherwise stops are coming
totally randomly wrt starts. these chs are scattered
throughout, other tdc dists look o.k. - but again hard
to tell...

some tdc values are zero

this is very wierd... comments please...

hit patterns
        http://mac8.rice.edu/~TOF/TOFp/a02.gif

adc dists (black=all hits, red=w/ tdc hit)
        http://mac8.rice.edu/~TOF/TOFp/a03.gif

tdc dists (black=all hits, red=w/ adc hit)
        http://mac8.rice.edu/~TOF/TOFp/a04.gif

localmon file is:

tofp_at_tofp.starp.bnl.gov:~tofp/daq/data/localmon_to4044005.dat 

-- 

  W.J. Llope, Ph.D.                      Res. Assoc. Professor
  T.W. Bonner Nuclear Laboratory         phone:  713-348-4741
  Rice University, MS-315                fax:    713-348-5215
  6100 S. Main St.
  Houston, TX 77005-1892
             e-mail:     llope_at_physics.rice.edu
             WWW home:   http://wjllope.rice.edu/default.html

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