Space Science Centre (ANGKASA), Institute of Climate Change (IPI), Universiti Kebangsaan Malaysia, Malaysia.
Department of Physics, Payame Noor University (PNU), P.O. Box 19395-4697, Tehran, Iran.
Appl Radiat Isot. 2022 Sep;187:110344. doi: 10.1016/j.apradiso.2022.110344. Epub 2022 Jun 23.
In this paper, simulation of a gas micro-strip detector by using the MCNPX code, the feasibility of alpha spectroscopy for radon and its progeny has been investigated. Initially, for the verification of the code, the range of alpha particles released from Rn gas in the air has been obtained in the standard condition, which is consistent with the experimental results. Subsequently, the energy loss per unit path length, range of alpha particles and radon progeny was measured, then the relationship between the range, the energy and the air pressure has been achieved. Finally, the simulation results have been compared with the results of the particle range relationship, pressure and energy, and the radon spectroscopy has been performed with the studied detector. The comparison of the spectrum obtained with the simulated micro-strip detector and the experimental results shows that the introduced micro-strip detector, in addition to the ability to measure radon and daughters, also has the ability to extract the spectrum from it.
本文使用 MCNPX 代码对气体微条探测器进行了模拟，研究了利用 α 能谱法对氡及其子体进行探测的可行性。首先，为了验证代码的准确性，我们在标准条件下得到了空气中 Rn 气体释放出的α粒子的射程，实验结果与模拟结果一致。随后，我们测量了α粒子和氡子体的单位路径能量损失和射程，并得出了射程、能量与气压之间的关系。最后，我们将模拟结果与粒子射程关系、压力和能量的实验结果进行了比较，并使用研究用探测器进行了氡的能谱分析。对模拟微条探测器获得的谱与实验结果的比较表明，所引入的微条探测器除了具有测量氡及其子体的能力外，还具有从中提取谱的能力。
