Make New Entry, Make Followup Entry
User name hyde
Log entry time 03:41:27 on October31,2010
Entry number 337739
keyword=Cerenkov timing in coincidenceRun 81578
Time spectrum of trigger Cerenkov signal (disc on analog sum of 10 PMT)
Hi-res (50 ps?) common start TDC.
second histogram is good tracks
T->Draw("D.CerInT3",cCleanTrk*"L.s2.nthit==1","same")
overlap in T5 is formed with ~80ns gates for S2 and Cer
timing peak is roughly centered in window from 1100 to 2700
width of 1600 chan * 50 ps/chan = 80 ns
Coincidence appears to be efficient
FIGURE 1
