Data analysis » History » Revision 5
Revision 4 (Zhiwen Zhao, 06/01/2020 09:05 AM) → Revision 5/25 (Zhiwen Zhao, 06/03/2020 06:31 PM)
h1. Data analysis h2. general "How to read FADC250 scalers" https://logbooks.jlab.org/entry/3808745 "scaler file of run 158" https://logbooks.jlab.org/entry/3808730 h2. file file location /work/solid/cc_pro/beamtest run 160: production run, 30uA on PolHe3 target, fadc mode 1 single every 4ns, large angle, CO2 run160_0_all.zip and run160_0_all.csv has event by event info and the entries are ec_peak,ec_pos,ec_nhits,ec_sum,sc_peak,sc_pos,sc_nhits,sc_sum,Cer11_1_peak,Cer11_2_peak,Cer11_3_peak,Cer11_4_peak,Cer11_5_peak,......,ec_ch,sc_ch ........................................................................ ec_peak: the peak height of the channel with max peak height, but about 90% of the events have only one channel fired, so it is close to the sum. ec_pos: the peak sample number in the unit of 4ns ec_nhits: number of hits ec_sum: sum of all channels of peak height sc_* : similar things for SC2 which is the plane behind Cerenkov tube Cer11_1_peak: peak height of Cer11 quad1 Cer11_5_peak: peak height of Cer11 sum ec_ch: the channel channel with max peak height sc_ch: the channel channel with max peak height cer_pos is relative to ec_pos, ec_pos and sc_pos are relative to trigger. ........................................................................