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scintillator and tower configuration. Side View. Top View. small scint. (190mm x 380mm). TKR (~25” height). 99.5”. y. 4. 0. (z=0). y. 52”. 29.5”. floor. Tower (374.5mm x 374.5mm). 313492. 294020. 272926. 288918. 211889. event id:312942 (start from 131073). 390028.
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scintillator and tower configuration Side View Top View small scint. (190mm x 380mm) TKR (~25” height) 99.5” y 4 0 (z=0) y 52” 29.5” floor Tower (374.5mm x 374.5mm)
313492 294020 272926 288918 211889 event id:312942 (start from 131073) 390028 288918 420767 170783 370755 313492 219191 294020 mapping of plastic scintillators run id:135002052 Gary’s coincident event list was used here. (A List generated by Hiromitsu is almost identical)
MC Simulation 4805 out of 4824 simulated events triggered two towers->inefficiency due to Si and tower gap is ~0.5% Investigation of real data: # of events triggered muon telescope: 231 # of coincident events: 222 (efficiency of 96%) # of coincident events with a single track : 165 Among 165 events, 7 events missed the top scintillator and 7 missed the btm (among them, 3 events missed both scintillators). I.e., 11 events missed either top or btm scintillator. Among them, 7 events look like clean surface muon.
event id: 170783 missed btm scintillator muon-like
event id: 211889 missed top scintillator muon-like
event id: 219191 missed bottom scintillator e- from shower?
event id: 272926 missed top scintllator muon-like
event id: 288918 missed top/bottom e- from shower?
event id: 294020 missed top/bottom shower?
event id: 312942 missed top scintillator muon-like
event id: 313492 missed top/bottom shower?
event id: 370755 missed bottom scintillator muon-like
event id: 390028 missed top scintillator muon-like
event id: 420767 missed bottom scintiilator muon-like