• Main INDEX
  • Monthly INDEX
  • PREV
  • NEXT

    User name pavel

    Log entry time 16:27:53 on March 08, 2006

    Entry number 165801

    keyword=Cosmics run 2747

    According to the file /adaqfs/home/adaq/e02013/COMMISIONNING/tools/nd_pedestal_maps/PS/Calib_ADC_HVtune_2747.ps the HV for the Marking Detectors should be adjusted. Current peak/value numbers are m1-1-L 1.18 m1-2-L 2.05 m1-3-L 0.32 m1-4-L 0.47 m1-1-R 2.48 m1-2-R 0.34 m1-3-R 0.31 m1-4-R 0.63 that is, the signal in m1-1-L is good within 20%, signals in m1-2-L and m1-1-R should be significantly decreased, and the rest significantly increased.

    From the file /adaqfs/home/adaq/e02013/COMMISIONNING/tools/nd_pedestal_maps/PS/Calib_ADC_Single_2747.ps - the TDC thresholds in s1-14-R, and m1-4-R are essentially zero, that is, the TDCs are present there always, independent on amplitude in the channel.

    From the same file, most of the ADC channels on the Right side exibit double peaks in the raw amplitude distributions (green histograms). This is reflected further in the double peaks in the 's1-...-R' amplitude distributions. Any idea what it is? The average TDC thresholds on the right side is smaller than the average TDC thresholds on the left side by 50-100 channels.