Half-lives of La132 and La135

作     者：E. P. Abel H. K. Clause J. Fonslet R. J. Nickles G. W. Severin 

作者机构：Department of Chemistry and NSCL/FRIB Laboratory Michigan State University East Lansing Michigan 48824 USA Hevesy Laboratory Center for Nuclear Technologies Technical University of Denmark 4000 Roskilde Denmark Department of Medical Physics University of Wisconsin-Madison Madison Wisconsin 53706 USA 

出 版 物：《Physical Review C》 (物理学评论C辑：核物理学)

年 卷 期：2018年第97卷第3期

页      面：034312-034312页

核心收录：

学科分类：07[理学] 070202[理学-粒子物理与原子核物理] 0702[理学-物理学] 

基　　金：Technical University of Denmark Michigan State University UK Research and Innovation, UKRI, (53706) UK Research and Innovation, UKRI National Superconducting Cyclotron Laboratory, (NSF-1565546) 

主　　题：Lifetimes & widths Nuclear structure & decays 90 ≤ A ≤ 149 Nuclear data analysis & compilation 

摘      要：The half-lives of La135 and La132 were determined via serial gamma spectroscopy, and the half-life of La135 was further determined by a high-precision ionization-chamber measurement. The results are 18.91(2) hr for La135 and 4.59(4) hr for La132 compared with the previously compiled values of 19.5(2) hr and 4.8(2) hr, respectively. These lanthanum isotopes comprise a medically interesting system with positron emitter La132 and Auger-electron emitter La135 forming a theranostic pair for internal diagnostics and therapeutics. The precise half-lives are necessary for proper evaluation of their value in medicine and for a more representative tabulation of nuclear data.