Validation of a NaI(Tl) detector's model developed with MCNP-X code

被引：89
作者：
Salgado, C. M. [1 ]
Brandao, L. E. B. [1 ]
Schirru, R. [2 ]
Pereira, C. M. N. A. [1 ]
Conti, C. C. [3 ]
机构：
[1] CNEN IEN, Inst Engn Nucl, BR-21945970 Rio De Janeiro, Brazil
[2] Univ Fed Rio de Janeiro, COPPE PEN, BR-21941972 Rio De Janeiro, Brazil
[3] CNEN IRD, Inst Radioprotecao & Dosimetria, BR-22780160 Rio De Janeiro, Brazil
来源：
PROGRESS IN NUCLEAR ENERGY | 2012年 / 59卷
关键词：
MCNP-X simulation; NaI (Tl) detector; Gamma spectrometry; MONTE-CARLO CALCULATION; RESPONSE FUNCTIONS; GAMMA-RAYS; SCINTILLATION DETECTORS; SIMULATION; EFFICIENCIES; CALIBRATION;
D O I：
10.1016/j.pnucene.2012.03.006
中图分类号：
TL [原子能技术]; O571 [原子核物理学];
学科分类号：
0827 ; 082701 ;
摘要：
The Monte Carlo method was used to calculate the photon detection efficiency and energy resolution curves for a 1.5 '' x 1 '' NaI(Tl) scintillator detector (crystal + housing + photomultiplier tube material equivalent) exposed to gamma rays in the energy range from 20 key to 662 keV. This work aims to design a precise computational model, based in Monte Carlo simulation, which can be used in practical application. The energy resolution curve was used to improve the response of the mathematical simulation of the detector. The detector was modeled with the MCNP-X code and the results were compared to experimental photopeak efficiency measurements of radiation sources. The results showed good agreement with the experimental data. (C) 2012 Elsevier Ltd. All rights reserved.
引用
收藏
页码：19 / 25
页数：7
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