Application of Monte Carlo simulation to the prediction of extrapolation curves in the coincidence technique.
A technique for simulating all detection processes in a 4pi(beta,e,X)-gamma coincidence system by means of the Monte Carlo technique is described. This procedure yields a more realistic behaviour of the extrapolation curve as compared to the usual polynomial fit. The present paper describes its application to the standardisation of a typical pure beta emitter, namely 35S, by the efficiency tracing technique, and an EC-gamma radionuclide, namely 133Ba. The calculated extrapolations were compared to experimental values obtained at the IPEN.
Instituto de Pesquisas Energéticas e Nucleares: IPEN/CNEN-SP, Av. Prof. Lineu Prestes 2242, 05508-000, São Paulo, SP, Brazil. msdias@ipen.br
Mauro S
MS
Dias
Mauro N
MN
Takeda
Marina F
MF
Koskinas
D000465:Algorithms; D003198:Computer Simulation; D005720:Gamma Rays; D008956:Models, Chemical; D015233:Models, Statistical; D009010:Monte Carlo Method; D009716:Numerical Analysis, Computer-Assisted; D011829:Radiation Dosage; D011834:Radiation Monitoring / Q000379:methods* / Q000592:standards; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D012984:Software