Here is the summary of the measurement of 38Ca + liq H2 setting.
We obtain 49.45-hour data acquisition time, which contains 1.4 * 10^6 CATS DIV triggered event.
The CATS DIV factor is 30000 for each CATS, so we can estimate the "gated beam rate", the beam rate including dead time of the DAQ, was 1.2 * 10^5 cps.
This value implies the dead time of the data acquisition is almost 50%, since the physical count rate of CATS was about 2.5 * 10^5 cps during the run.
Similarly, we totally obtained 2.2 * 10^10 counts of "gated beam". This value would help to compare with and estimate the statistics of the 36Ca setting.
See google spreadsheet for detail.
https://docs.google.com/spreadsheets/d/1yErcQcrXPdJjEOfUd9D9KPWWkWQpw5kX4wFze6vwij4/edit#gid=0 |