SCK CEN, Belgian Nuclear Research Centre, Boeretang 200, BE-2400, Mol, Belgium; Department of Hydrology and Hydraulic Engineering, Vrije Universiteit Brussel (VUB), Pleinlaan 2, BE-1050, Brussels, Belgium.
SCK CEN, Belgian Nuclear Research Centre, Boeretang 200, BE-2400, Mol, Belgium.
Appl Radiat Isot. 2021 Aug;174:109790. doi: 10.1016/j.apradiso.2021.109790. Epub 2021 May 25.
A reliable detector model is needed for Monte Carlo efficiency calibration. A LaBr(Ce) detector model was optimized and verified using different radioactive sources (Am,Ba,Cs,Co andEu) and geometries (point, extended and surface). PENELOPE and MCNP were used for Monte Carlo simulations. A good agreement was observed between simulated and experimental full energy peak efficiencies (FEPE) as their mean relative difference was 2.84% ± 1.93% and 2.79% ± 1.99% for PENELOPE and MCNP simulation, respectively. The differences between simulated FEPEs of two Monte Carlo codes were negligible except for low energies (< 100 keV).
需要一个可靠的探测器模型来进行蒙特卡罗效率校准。使用不同的放射性源（Am、Ba、Cs、Co 和 Eu）和几何形状（点、扩展和表面）对 LaBr(Ce) 探测器模型进行了优化和验证。使用 PENELPE 和 MCNP 进行了蒙特卡罗模拟。模拟和实验全能量峰效率（FEPE）之间观察到很好的一致性，其平均相对差异分别为 2.84%±1.93%和 2.79%±1.99%，用于 PENELPE 和 MCNP 模拟。除了低能量（<100keV）外，两个蒙特卡罗代码模拟的 FEPE 之间的差异可以忽略不计。
