• Main INDEX
  • Monthly INDEX
  • PREV
  • NEXT
    Make New Entry, Make Followup Entry

    User name dwang

    Log entry time 08:33:14 on October11,2009

    Entry number 294378

    keyword=tests with edet

    Took several runs with electron detector at different position to see how close we can put it to the beam before rate goes crazy.
    all the runs are taken with 3 plane coincidence.
    run 20295, edet at 50mm, threshlod 12, electron rate almost 0.
    run 20296, edet at 25mm, threshold 11, electron rate 0.
    run 20297, edet at 25mm, threshold 11, electron rate about 2 Hz/uA.
    run 20298, edet at 10mm, threshold 11, electron rate about 5 Hz/uA

    Got a request from MCC to turn on photon detector, so stopped here and switched to photon only.