Testing PMT's

Discussion in 'Electronics Resources' started by Davall, Apr 5, 2010.

  1. Davall

    Thread Starter New Member

    Aug 29, 2009
    Does anybody know of a way to testing PMT's so degradation can be detected?
    What I have is a PMT, an LED, a scope and software to activate the PMT with the LED to read the gain with the scope. Under normal conditions the PMT's are used under X rays......of course, I can only test without the X rays.(I have to test without X rays to find a balance between those that are under the rays, so I can relate/compare to PMT's not under the exposure of x rays and prepare for breakdowns) Recently, I've pulled a PMT out of a machine as it was getting noisy. I've compared this to a new one and cannot find any differences in the output gain...actually if truth be told the new PMT was worse than the one I took out of service. Any suggestions, procedures or references would be greatly appreciated.
    Thanks guys.
  2. bertus


    Apr 5, 2008

    Take a look at the attached PDF.