A radiation detector consisting of a combination of {HEAD ~ the scintillator} 2 and {TAIL ~ a light} responding means 
A radiation detector consisting of a combination of { HEAD ~ the scintillator } 2 and { TAIL ~ a light } responding means
OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH