1. G.F. Knoll, Radiation Detection and Measurement (1999), p. 219
2. Geant4, a toolkit for the simulation of the passage of particles through matter
http://geant4.web.cern.ch/geant4/
3. The R Project for Statistical Computing
https://www.r-project.org/
4. M.M. Iyajima, S.S. Asaki, H.T. Awara, Number of scintillation photons produced in NaI(TI) and plastic scintillator by gamma-rays. IEEE Trans. Nucl. Sci. 40(4), 417–423 (1993)