1. Hirayama, H., Namito, Y., Bielajew, A.F., Wilderman, S.J., Nelson, W.R., 2005. EGS5 Code System. SLAC-R-730.
2. ISO, 2010. Standard ISO 8769:2010: Reference sources – Calibration of surface contamination monitors – Alpha-, beta- and photon emitters. International Organization for Standardization, Geneva, Switzerland.
3. ISO, 2015. Standard ISO/FDIS 8769:2015: Reference sources – Calibration of surface contamination monitors – Alpha-, beta- and photon emitters. International Organization for Standardization, Geneva, Switzerland.
4. IEC, 2002. Radiation protection instrumentation-Alpha, beta, and alpha/beta (beta energy>60 keV) contamination meters and monitors, IEC 60325 Ed.3.0.
5. Characterization of photon-emitting wide area reference sources;Nähle;Appl. Radiat. Isot.,2012