Log entry time 00:07:01 on April 2,2005

Entry number 143006

16:00 noticed Bigbite channel has flat spectrum for run #3130, see <"http://www.jlab.org/~adaq/halog/html/0504_archive/050401160948.html">142983 for plot. Rerunning analyzer for this run shows the same results; This is similar to what happened earlier today: 142927. Bigbite experts are contacted but there is no explanation at the moment.



23:45 we noticed Compton has a high background. MCC said they didn't change anything.



Other than the flat spectra and COmpton background, everything else during this shift went as smoothly as one can imagine.



run summary

run#  start stop  #events comments

3130(previous shift) "flat" Bigbite ADC spectrum

3131  15:05 16:16 300Kgood run

3132  16:17 17:22 300K

3133  17:22 18:37 300K    N1 Left TDC 26 spectrum has 2 times higher yield

3134  18:37 19:42 300K    same as 3133

3135  19:43 20:54 300K

3136  20:55 22:05 300K

3137  22:07 23:19 300K

3138  23:20 proceed to next shift