同位素2026，Vol.39Issue(1)：7-13,7.DOI:10.7538/tws.2025.youxian.053
99Mo生产用高浓铀靶件制备研究
Preparation of High Enriched Uranium Targets for the Production of Molybdenum-99
陈铭 1黄曾 1张锐 1刘承乾 1顾君阳1
作者信息
- 1. 中国工程物理研究院 核物理与化学研究所,四川 绵阳 621999
- 折叠
摘要
Abstract
Technetium-99m(99mTc)is a key medical isotope widely used in diagnostic imaging.It is primarily obtained from the decay of its parent nuclide,molybdenum-99(99Mo).In China,over 80%of nuclear medicine diagnostic procedures rely on 99mTc-based imaging agents.However,the supply of the raw material,99Mo,currently depends entirely on imports.The dominant production method for 99Mo involves the irradiation of uranium-235(235U)in nuclear reactors.To expedite the domestic production of 99Mo,the Institute of Nuclear Physics and Chemistry of China Academy of Engineering Physics has established a 99Mo production line utilizing highly enriched uranium(HEU)targets irradiated in a reactor.This work focuses on the development of HEU targets for 99Mo production,with optimization of key process parameters—such as powder mixing duration,die size in cold pressing,and sintering temperature.Comprehensive evaluations were conducted on the dimensional accuracy,leakage rate,and internal microstructure of the fabricated targets.As a result,a robust HEU target fabrication process has been established,which is fully compatible with downstream disassembly and separation-purification steps.关键词
医用同位素/99Mo/高浓铀靶Key words
medical isotope/molybdenum-99/high enriched uranium targets分类
能源科技引用本文复制引用
陈铭,黄曾,张锐,刘承乾,顾君阳..99Mo生产用高浓铀靶件制备研究[J].同位素,2026,39(1):7-13,7.
