Some properties of plastic scintillators to construct a LET spectrometer

The properties of plastic scintillators as candidate materials for constructing a dosimeter based on LET spectrometry are studied. In order to obtain LET, it is necessary to determine the deposited energy and the trajectory of the incident radiation. For determining the deposited energy, energy resolution is an important factor which must be evaluated. In this study, the energy resolution of plastic scintillators EJ-200, EJ-212, and EJ-252 are determined based on the results of electron response and the absolute light yield. Additionally, in the progress of determining the trajectory of radiations, we examine the relationship between the incidence positions of radiation in the plastic scintillator and signals from the photomultiplier tube. (author)