04 Spectra from Problem PMT Channels

Under:

We set the HV = 800 Volts for all channels which have been masked out, repaired, or otherwise had problems in 2008.  I have examined the spectra for these channels and give pdfs with each of these spectra:

drupal.star.bnl.gov/STAR/system/files/2009_800_1_12.pdf

drupal.star.bnl.gov/STAR/system/files/2009_800_13_24.pdf

drupal.star.bnl.gov/STAR/system/files/2009_800_25_36.pdf

drupal.star.bnl.gov/STAR/system/files/2009_800_37_48.pdf

drupal.star.bnl.gov/STAR/system/files/2009_800_49_60.pdf

drupal.star.bnl.gov/STAR/system/files/2009_800_61_72.pdf

drupal.star.bnl.gov/STAR/system/files/2009_800_72_78.pdf

 

I identify 37 tubes which are dead, 39 tubes which can be adjusted, and 1 with a bit problem.  We should pay careful attention to these tubes in the next iteration.