利用激光康普顿散射伽马源对医用放射性同位素的光核反应截面进行可行性研究

IF 3.6 1区 物理与天体物理 Q1 NUCLEAR SCIENCE & TECHNOLOGY Nuclear Science and Techniques Pub Date : 2024-08-31 DOI:10.1007/s41365-024-01481-7
Yu-Ning Gu, Wei-Juan Zhao, Xi-Guang Cao, Yu-Xuan Yang, Ting-Kai Ma, Zheng-Li Liao, Fei-Long Xu, Yu-Gang Ma
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引用次数: 0

摘要

近年来,医用放射性同位素的供需缺口越来越大,因此必须采用新方法来生产医用放射性同位素。基于伽马源的光核反应在生产高比活度和创新医用放射性同位素方面具有独特的优势。然而,由于缺乏相关医用放射性同位素光核反应的反应截面实验数据,严重限制了光核嬗变医用放射性同位素的开发和生产。在这项研究中,利用在线伽马活化和离线伽马测量,结合屏蔽伽马射线光谱仪,模拟了医用放射性同位素的生成、衰变和测量的全过程。以上海激光电子伽马源(SLEGS)的准单色伽马射线为基础,模拟了测量医用放射性同位素生成截面的可行性,并提供了测量超低生成截面医用放射性同位素的具体方案。证明了这种方法在高精度测量医用放射性同位素反应截面方面的可行性。
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Feasibility study of the photonuclear reaction cross section of medical radioisotopes using a laser Compton scattering gamma source

In recent years, the gap between the supply and demand of medical radioisotopes has increased, necessitating new methods for producing medical radioisotopes. Photonuclear reactions based on gamma sources have unique advantages in terms of producing high specific activity and innovative medical radioisotopes. However, the lack of experimental data on reaction cross sections for photonuclear reactions of medical radioisotopes of interest has severely limited the development and production of photonuclear transmutation medical radioisotopes. In this study, the entire process of the generation, decay, and measurement of medical radioisotopes was simulated using online gamma activation and offline gamma measurements combined with a shielding gamma-ray spectrometer. Based on a quasi-monochromatic gamma beam from the Shanghai Laser Electron Gamma Source (SLEGS), the feasibility of this measurement of production cross section for surveyed medical radioisotopes was simulated, and specific solutions for measuring medical radioisotopes with ultra-low production cross sections were provided. The feasibility of this method for high-precision measurements of the reaction cross section of medical radioisotopes was demonstrated.

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来源期刊
Nuclear Science and Techniques
Nuclear Science and Techniques 物理-核科学技术
CiteScore
5.10
自引率
39.30%
发文量
141
审稿时长
5 months
期刊介绍: Nuclear Science and Techniques (NST) reports scientific findings, technical advances and important results in the fields of nuclear science and techniques. The aim of this periodical is to stimulate cross-fertilization of knowledge among scientists and engineers working in the fields of nuclear research. Scope covers the following subjects: • Synchrotron radiation applications, beamline technology; • Accelerator, ray technology and applications; • Nuclear chemistry, radiochemistry, radiopharmaceuticals, nuclear medicine; • Nuclear electronics and instrumentation; • Nuclear physics and interdisciplinary research; • Nuclear energy science and engineering.
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