Hodoscope
The typical detector segment is a piece of scintillating material, which emits light when a particle passes through it.The scintillation light can be converted to an electrical signal either by a photomultiplier tube (PMT) or a PIN diode.In addition to coordinate information, for some systems the strength of the light can be proportional to the deposited energy.As an example: a simple hodoscope might be used to determine where a particle crossed a plane or a wall.In this case, the experimenter could use two segments shaped like strips, arranged in two layers.