长寿命裂变产物核素核数据测量进展

Progress in Nuclear Data Measurement of Long-Lived Fission Products

文章对与高放废物深地层处置以及分离嬗变相关的半衰期大于10 a、裂变产额高于0.01%的13种长寿命裂变产物核素的半衰期、裂变产额和热中子反应截面的测量研究、数据现状及其进展进行概要评述。就长寿命核素的分离纯化、原子数测定及放射性活度测量方法和技术进行了分析和论述。

The long-lived disposal and partitioning fission products（LLFPs） are critical nuclides for geological transmutation of high-level waste. The paper reviews measurement, present status and the progress of fission products nuclear data, such as half-life, fission yield and thermal neutron cross section for 13 long-lived fission pro- ducts with the half-life of more than 10 a and fission yields of more than 0.01 %. The radiochemical separation and purification, measurements of atom number and radioactivity of the long-lived nuclides in the field of measurement of fission products nuclear data are discussed and some interesting ideas are pointed out.