同位素2025，Vol.38Issue(3)：261-268,8.DOI:10.7538/tws.2025.youxian.007
溅射铀靶中铀含量的放射性活度测量方法研究
Research on the Measurement Method of Uranium Content and Radioactive Activity in Sputtered Uranium Targets
郑健宁 1陈细林 1张昕宇 1徐利军 1夏文 1姚顺和 1罗明杰 1朱亨1
作者信息
- 1. 中国原子能科学研究院,北京 102413
- 折叠
摘要
Abstract
To develop an"equivalent thickness measurement technique"for non-destructive measurement of ultra-thin carbon nanotube film uranium target thickness,which can address the limitations of traditional measurement methods.The magnetron sputtering was used to prepare uranium targets on carbon nanotube films and stainless steel substrates.The surface emissivity of the uranium target was measured and converted into mass thickness using 2πα and 2πβ multi wire proportional counters,and compared and verified using a liquid scintillation counter.The experimental results show that the maximum deviation between the uranium target thickness measured by this method and the liquid scintillation counter is only-4.8%,which verifies the reliability of this technology;The measurement of samples at different positions also confirmed the uniformity of uranium distribution during the sputtering process.This study successfully established a new non-destructive measurement method that can accurately measure the thickness of ultra-thin uranium targets,providing an effective technical means for uranium target preparation and quality control in related fields.关键词
无损测量/质量厚度/碳纳米管膜铀靶Key words
nondestructive measurement/mass thickness/Carbon nanotube film uranium target引用本文复制引用
郑健宁,陈细林,张昕宇,徐利军,夏文,姚顺和,罗明杰,朱亨..溅射铀靶中铀含量的放射性活度测量方法研究[J].同位素,2025,38(3):261-268,8.
