Various sticky bits in MAPMT

  1. Plot below shows X vs. Y for UxV points. The black lines comes from SMD pixels with jumping pedestals.

  2. The 4 strips visible in sector 5 are 
    strip     crate chan
05U013 84 37  frozen all bits
05U073 84 36  stuck 8th bit (step of 256 chan)
05V192 84 39  frozen all bits
05V232 84 38  stuck 8th bit (step of 256 chan)
    The spectra are below. This is just 10K events from one run 5109027 (minB trig), so ped jumps on event by event basis. I looked also in run 5112017 (not plotted)and the pattern is the same.








  3. The 07U188 strip visible in sector 7 was stuck for run 5109027 , but worked fine for run 5112017

  4. The same X vs. Y plot, but now all SMD strips with ADC-ped >150 are ignored. Strip 07U188 still needs masking.