Study of the influence of moderator material on sensitivity of the epithermal neutron flux detector using the 71Ga(n,γ)72Ga reaction

IF 1.6 3区工程技术 Q3 CHEMISTRY, INORGANIC & NUCLEAR

Applied Radiation and Isotopes Pub Date : 2025-04-15 DOI:10.1016/j.apradiso.2025.111844

E. Byambatseren , T. Bykov , D. Kasatov , Ia Kolesnikov , S. Savinov , T. Shein , S. Taskaev

引用次数: 0

Abstract

An intense epithermal neutron flux is necessary for boron neutron capture therapy (BNCT), a promising technique for the treatment of malignant tumors. The epithermal neutron flux is an essential characteristic of the BNCT neutron beam, and its measurement is directly related to the reliability of the treatment planning system. Such a tool could be a cylindrical activation detector using ⁷¹Ga (n,γ)⁷²Ga reaction. In the detector, the activation material is positioned in the geometrical center of a cylinder moderator covered with cadmium foil. Two different teams of researchers calculated the sensitivities of detectors of the same size, but with different moderators which differ by a factor of 1.6. In this work, the effect of the moderator material on the sensitivity of the detector was experimentally studied.

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用71Ga(n,γ)72Ga反应研究慢化剂对超热中子通量探测器灵敏度的影响

强超热中子通量是硼中子俘获治疗（BNCT）的必要条件，硼中子俘获治疗是一种很有前途的恶性肿瘤治疗技术。超热中子通量是BNCT中子束的基本特性，其测量直接关系到处理计划系统的可靠性。这种工具可以是使用71Ga (n,γ)72Ga反应的圆柱形活化检测器。在探测器中，活化材料位于覆盖有镉箔的圆柱体慢化剂的几何中心。两个不同的研究小组计算了相同大小的探测器的灵敏度，但使用了不同的缓和剂，其差异为1.6倍。本文通过实验研究了慢化材料对探测器灵敏度的影响。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Applied Radiation and Isotopes 工程技术-核科学技术

CiteScore

3.00

自引率

12.50%

发文量

406

审稿时长

13.5 months

期刊介绍： Applied Radiation and Isotopes provides a high quality medium for the publication of substantial, original and scientific and technological papers on the development and peaceful application of nuclear, radiation and radionuclide techniques in chemistry, physics, biochemistry, biology, medicine, security, engineering and in the earth, planetary and environmental sciences, all including dosimetry. Nuclear techniques are defined in the broadest sense and both experimental and theoretical papers are welcome. They include the development and use of α- and β-particles, X-rays and γ-rays, neutrons and other nuclear particles and radiations from all sources, including radionuclides, synchrotron sources, cyclotrons and reactors and from the natural environment. The journal aims to publish papers with significance to an international audience, containing substantial novelty and scientific impact. The Editors reserve the rights to reject, with or without external review, papers that do not meet these criteria. Papers dealing with radiation processing, i.e., where radiation is used to bring about a biological, chemical or physical change in a material, should be directed to our sister journal Radiation Physics and Chemistry.