Characterization of a cylindrical plastic {\beta}-detector with Monte Carlo simulations of optical photons

摘要

In this work we report on the Monte Carlo study performed to understand andreproduce experimental measurements of a new plastic \b{eta}-detector withcylindrical geometry. Since energy deposition simulations differ from theexperimental measurements for such a geometry, we show how the simulation ofproduction and transport of optical photons does allow one to obtain the shapesof the experimental spectra. Moreover, taking into account the computationaleffort associated with this kind of simulation, we develop a method to convertthe simulations of energy deposited into light collected, depending only on theinteraction point in the detector. This method represents a useful solutionwhen extensive simulations have to be done, as in the case of the calculationof the response function of the spectrometer in a total absorption {\gamma}-rayspectroscopy analysis.