modeFlag bits

The processing done by the event filter formatter (EFF) depends on the event processing "modeFlag" bits. Some of these bits also control the format of the data written to tape.


  0  (bit zero, first bit) -- always zero

 BIT - EVENT PROCESSING CONTROL BITS

  1  gcmode          gain correction on/off
  2  tmmode          time veto on/off
  3  hmode           adjacent detector veto on/off 

 BIT - EVENT DATA CONTROL BITS FOR EACH DETECTOR

  4  writeget        output ge time on/off
  5  writegef        output full ge data on/off
  6  writebgo        output of BGO data on/off
 
 BIT - EVENT DATA CONROL BITS FOR EACH EVENT

  7  writeallge      output of dirty ge data on/off
  8  writeallbgo     output of clean bgo data on/off

 BIT - MISC

  9  writeIsomerTag  
 10  rf_timing       ge times calculated vs rf pulses
                     (subtract tac2 on the fly)
 11  not used, zero
 12  not used, zero
 13  not used, zero
 14  not used, zero
 15  not used, zero

The modeFlags are stored in the "Modeflag" field in each event data record. The values of the modeFlags (bits) are controlled eithet globally for all EFF's on data acquisition EPICS screens or individually on the individual EFF EPICS control screens.

last update: 3/5/98
If you find errors in this GAMMASPHERE documentation; please send E-mail to Torben.