Dead time calculation

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The dead time is computed in end of run script

and in the ~a-onl/scaler/dtime scdtime.c for online dead time calculation

I put this formula in the deadtime calculation

  1. Dead time calculation
  2. Correlation between trigger ( April 6 2007 ) A. Camsonne
  3. T1 =S1S2
  4. T2 =S1 or S2 all T1 are are in T2
  5. T3 =S1S2
  6. T4 =S1C or S2C
  7. T5 = T1T3 all T5 are T1 and T3
  8. T6 = T3T2 all T6 are T3 and T2
  9. T7 = T1T4 all T7 are T1 and T4
  1. evert T7 is s T1
  1. Expected number of triggers = (T1-T5-T7)/ps1+(T2-2T1-T6)/ps2+(T3-T5-T6)/ps3+(T4-T7)/ps4+T5/ps5+T6/ps6+T7/ps7+T8/ps8

foreach t $scalerinfo(triglist) {

           set tcorr 0

set nt($t,$h) $map(trigger-$t,$h)

           if { $t == 1 } {
              set tcorr $t5corr+$t7corr

}

           if { $t == 2 } {
              set tcorr $t6corr+2*$t1corr

}

           if { $t == 3 } {

set tcorr [ expr $t5corr + $t6corr ] } if { $t == 4 } {

set tcorr [ expr $t7corr ]

}

What is deadtime, and how to correct for it offline

Bob Michael's notes

PrimEx Discussion (Dave Lawrence)