E-93026 Electronics dead-time
The electronics dead-time is determined from an electronics circuit that replicates the electron trigger signal with different gate widths: 30ns, 60ns, 90ns and 120ns These signals are sent to scalers. From the scaler values one can extrapolate to 0ns gate width via a linear fit. The nominal gate width in the electronics circuit is 30ns. To quote the electronics dead-time one calculates the relative loss of counts from 0ns gate width to 30ns gate width.
The analysis was done for the Q2=0.5 and Q2=1
period, 2 runs each.
For run 41001 and 41599 the 90ns gate was missing.
run number | rate [Hz] | counts 0ns (from fit) | counts 30ns | relative loss (0ns-30ns)/0ns |
41001 | 1124 | 207115 | 207110 | 2.4e-5 |
41599 | 1180 | 1362110 | 1362071 | 2.9e-5 |
42827 | 382 | 1244940 | 1244924 | 1.3e-5 |
43021 | 390 | 1343050 | 1343029 | 1.6e-5 |
The electronics dead-time is lower than 5e-5.
This is two orders of magnitude less than the measured
physics asymmetry for neutrons and thus neglible.