Detection efficiency evaluation for low energy of a NaI(Tl) scintillation detector

被引：2
|
作者：
Maeng, Seongjin [1 ]
Lee, Sang Hoon [1 ,2 ]
Park, Seong Jin [1 ,3 ]
Choi, Woo Cheol [4 ,5 ]
机构：
[1] Kyungpook Natl Univ, Sch Energy Engn, Daegu 41566, South Korea
[2] Kyungpook Natl Univ, Radiat Sci Res Inst, Daegu 41566, South Korea
[3] Korea Fdn Nucl Safety, Seongnam 13493, Gyeonggi Do, South Korea
[4] Daegu Catholic Univ, Dept Radiol, Gyongsan 38430, Gyeongbuk, South Korea
[5] BRNC, Seoul 08507, South Korea
来源：
RADIATION PHYSICS AND CHEMISTRY | 2022年 / 199卷
关键词：
NaI(Tl) scintillation detector; X-ray escape; Low energy ragne; Detection efficiency; COINCIDENCE-SUMMING CORRECTION; RAY;
D O I：
10.1016/j.radphyschem.2022.110325
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
To improve the characterization of the detection efficiency of a NaI(Tl) scintillation detector in the low energy range, measurements and Monte Carlo simulations were performed with a certified reference material (CRM) and disk sources. The detection efficiency as modeled. In the MCNP simulation, the detection efficiency dropped as expected at 33.17 keV. The X-ray escape correction factors of a Tl-204 disk source and MCNP simulations were compared, a factor of the Tl-204 was similar. Moreover, Correcting the X-ray escape and using fewer sources than the CRM resulted in better detection efficiency for the NaI(Tl) detector in the low energy range.
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页数：7
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