水溶液重离子辐射化学研究进展——径迹结构的重要性  

Research Progress in Radiation Chemistryof Heavy Ions in Aqueous Solutions——Significance of Track Structure

作　　者：安龙飞 陈良文 高育翠 杜香怡 张延师 孙勇 林铭章[4] AN Long-fei;CHEN Liang-wen;GAO Yu-cui;DU Xiang-yi;ZHANG Yan-shi;SUN Yong;LIN Ming-zhang(Institute of Modern Physics,Chinese Academy of Sciences,Lanzhou 730000,China;School of Nuclear Science and Technology,University of Chinese Academy of Sciences,Beijing 100049,China;Advanced Energy Science and Technology Guangdong Laboratory,Huizhou 528200,China;Institute of Nuclear Science and Technology,University of Science and Technology of China,Hefei 230026,China)

机构地区：[1]中国科学院近代物理研究所,甘肃兰州730000 [2]中国科学院大学核科学与技术学院,北京100049 [3]先进能源科学与技术广东省实验室,广东惠州528200 [4]中国科学技术大学核科学技术学院,安徽合肥230026

出　　处：《核化学与放射化学》2025年第2期103-117,I0001,共16页Journal of Nuclear and Radiochemistry

基　　金：国家重点研发计划(2022YFB1902900);国家自然科学基金“叶企孙”科学基金资助项目(U2241289)。

摘　　要：水溶液重离子辐射化学广泛应用于核反应堆安全、深空探测、重离子治癌、医用同位素生产等领域,而径迹结构效应是水溶液重离子辐射分解的核心科学问题。借助于日益发展的重离子加速器装置,通过研究不同传能线密度(LET)重离子辐射下的自由基和分子产物的产额及动力学过程等,可以深层次探究径迹结构效应。本文简述了水溶液辐射分解的演化过程和径迹结构等基本概念,从稳态辐解和脉冲辐解两方面综述了水溶液重离子辐射分解的主要研究方法和目前世界上主要重离子辐解研究装置,回顾了近些年水溶液重离子辐射分解领域取得的主要进展和成就,着重在实验研究方面对水溶液重离子辐射分解的径迹结构效应进行阐述。在此基础上,本文最后展望了水溶液重离子辐解在基础研究和应用科学等交叉学科领域的重要性和应用前景。It has been nearly a hundred years since radium was first isolated and used in the Curie laboratory,initiating the research on radiation chemistry of heavy ions in aqueous solutions.The radiochemistry of heavy ions in aqueous solutions is extensively applied across several areas,such as nuclear reactor safety,deep space exploration,heavy ion therapy and medical isotope production,etc.In the realm of nuclear reactor safety,the analysis of radiation effects induced by radioactive materials in various operational scenarios is facilitated by aqueous solution heavy ion radiation chemistry,providing crucial insights for reactor safety control.Furthermore,by examining the biological impacts of heavy ion radiation from cosmic rays,radiolysis research offers invaluable information for radiation protection during deep space exploration missions.With the continuous advancement in proton and heavy ion cancer treatment technology,a comprehensive understanding of their underlying mechanisms and reaction kinetics has become a pivotal objective in the study of heavy ion radiation decomposition in aqueous solution,thereby furnishing a theoretical framework and data-driven guidance for cancer treatment and treatment plan refinement.The widespread application of radiochemistry of heavy ions in aqueous solutions underscores its significant role in advancing technology and ensuring safety in various areas.The track structure effect is the pivotal scientific question concerning the heavy ion radiolysis of aqueous solutions.In order to clarify and interpret the track structure effect of radiolysis of heavy ions in aqueous solution,a series of experimental studies has been performed and several theoretical models have been proposed.Taking advantages of heavy ion accelerator facilities,the track structure effect can be investigated through the study of the yield and kinetic processes of free radicals and molecular products under various linear energy transfer(LET)radiation conditions.In this article,the decomposition process of aqueous s

关 键 词：重离子水辐解 传能线密度 径迹结构 稳态辐解 脉冲辐解 

分 类 号：TL13[核科学技术—核能科学] O644.22[理学—物理化学]