• Main INDEX
  • Monthly INDEX
  • PREV
  • NEXT

    User name V. Sulkosky

    Log entry time 21:14:24 on September 17, 2008

    Entry number 243314

    Followups:

    keyword=Helicity and Target Spin Signal in ADC

    I have added the beam helicity and target spin signals to the ADC in ROC 4 slot 21 channels 48-53. I removed the pedestal suppression for these channels in ped4.dat for the a-onl account.

    The signals travel through patch panel ALFRED row D: 
    Patch Panel     ADC Channel     Description
-----------------------------------------------
D1                   48        Target Spin up
D2                   49        Target Spin down
D3                   50              MPS
D4                   51              QRT
D5                   52        Helicity Copy 1
D6                   52        Helicity Copy 2
    I added the signals to the Decdata class database to check the signals: 

    Name           "crate"   Crate-number    Slot    Channel
---------------------------------------------------------
tgspinup        crate         4           21       48
tgspindn        crate         4           21       49
MPS             crate         4           21       50
QRT             crate         4           21       51
helicity1       crate         4           21       52
helicity2       crate         4           21       53


    A copy of this log entry has been emailed to: rom@jlab.org,kalyan@jlab.org,ycwang@jlab.org,jinhuang@jlab.org