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MUONSCOPE
We constructed a frame for muon telescope. We have three scintillator plates and light guides. Installation is still in progress...
We also made muonscope's simulation by using GEANT. There exist three plates A, B and C and there is a stopper between B and C. The GEANT program detects the events which result in the decay of muon in the stopper and in which the resulting positrons reach plate C. In the GEANT program the logic goes as follows to identify the muon decay: In gustep.f: trigger settings
IF(LASTNUMED.EQ.2.AND.IPARTOLD.EQ.5) MUFLG=1 IF(LASTNUMED.EQ.4.AND.IPARTOLD.EQ.5)
MUFLGA=1 IF(LASTNUMED.EQ.5.AND.IPARTOLD.EQ.5) MUFLGB=1 IF(LASTNUMED.EQ.6.AND.IPARTOLD.EQ.5)
MUFLGS=1 IF(LASTNUMED.EQ.7.AND.IPARTOLD.EQ.5) MUFLGC=1 IF(LASTNUMED.EQ.7.AND.IPARTOLD.EQ.2)
IPOSFLG=1 IF(LASTNUMED.EQ.6.AND.IPARTOLD.EQ.2.AND.PROCD.EQ.'DECAY') THEN
MUDEC=1
where med#2=concrete med#4=plate A med#5=plate B med#6=stopper med#7=plate
C and then we define: ITRIG1=MUFLG+MUFLGA+MUFLGB+MUFLGS ITRIG2=MUFLGC ITRIGD=MUDEC
After defining these parameters in gustep.f, we specified the cases to
be considered in guout.f. We set ITRIG1=4, ITRIG2=0, ITRIGD=1 and IPOSFLG=1
in guout.f and the output is taken only for these cases. If ITRIG1 is equal
to 1 this is the case in which the muon passes through concrete, plate
A, plate B, plate C. When ITRIG2 is equal to 0, our muon does not pass
through plate C since we want to detect the events in which muon already
decays in the stopper so it does not reach the plate C. When ITRIGD is
equal to 1 this means that the positron is detected in plate C and this
positron is a decay positron, namely it is created by the decay of muon.
Finally, by setting IPOSFLG to be equal to 1 we consider the case of positron
being detected in plate C.
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