Charge   Asymmetry  Feedback



Robert Michaels, rom@jlab.org, Jefferson Lab Hall A, updated Aug 1, 2001


Feedback to control the helicity correlated charge asymmetry runs automatically from Parity DAQ.   Thanks J. Grames, A. Vacheret, B. Bevins, P. Chevstov



TURNING ON AND OFF

To turn on or off feedback script, login to an adaq linux box like adaql1 as ``adaq'' and execute one of the following. NOTE, this only turns on/off the script called by Parity DAQ. If you turn it off, you can still interact with the EPICS Gui for Charge Asymmetry control.


HOW TO CHECK

The following procedures can check if feedback is working and can measure the charge asymmetry.  


THINGS THAT CAN GO WRONG


MORE INFO


This page maintained by   Robert Michaels.   rom@jlab.org