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

    User name R. Michaels

    Log entry time 15:16:20 on September10,2010

    Entry number 332153

    This entry is a followup to: 332144

    keyword=helicity board in funny state

    Reason for the warnings on TS about scalers --

    The helicity signals are in a "funny" state. It could be due to
    testing in Qweak (I don't know). This means that, at the moment,
    all the helicity-gated scaler data are bad. Of course, one should
    hope this does not happen during DVCS. This reminds me, I need to
    make the software grab the state of the board and adjust accordingly.
    The state is known in EPICS (fig 1, taken just now).

    The last time I observed correct scaler data was yesterday afternoon.

    FIGURE 1