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User name hyde
Log entry time 10:02:16 on November 1,2010
Entry number 337957
keyword=Cerenkov run 8161
Study Cerenkov effective threshold in LeftHRS run 8161
ps3=ps4=1
Select good tracks in each cerenkov
e.g. cer[0]
first all T3 events, then events with good timing cut in cer TDC T->Draw("L.cer.a[0]",cCleanTrk*"abs(L.cer.t[0]-1700)<500&&fEvtHdr.fEvtType==3","same")
T.cer.a[0] Effective threshold is 1 photo-electron
T.cer.a[1] threshold is 1 photo-electron?
T.cer.a[2] threshold 1 photo-electron
T.cer.a[3] threshold = 1 p.e.
T.cer.a[4] threshold >/= 1 p.e.
T.cer.a[5] threshold 1.5 p.e.
T.cer.a[6] threshold 1 p.e.
T.cer.a[7] threshold 1.5 p.e.
T.cer.a[8] threshold 1.5 p.e.
T.cer.a[9] threshold 1.5 p.e.
FIGURE 1
FIGURE 2