Effect of 226Ra purity as a target for 225Ac production using a fast reactor

被引：0

作者：

Sasaki, Yuto ^{[1
]}

Maeda, Shigetaka ^{[1
]}

机构：

[1] Japan Atom Energy Agcy, Oarai Res & Dev Inst, 4002 Narita, Ibaraki 3111393, Japan

来源：

JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY | 2024年 / 333卷 / 11期

关键词：

Radioisotope production; Targeted alpha therapy; Ac-225; Fast reactor; Joyo; Ra-226; Fast neutron; (n; 2n); Reaction; MK-III; PROTONS;

D O I：

10.1007/s10967-024-09397-7

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Researchers are seeking alternative Ac-225 production methods because of the scarcity of Ac-225 for targeted alpha therapy. Although Ra-226 from waste sources has been considered, obtaining( 226)Ra is challenging. Therefore, the authors focused on the contamination of minerals with Th-232-derived Ra-228 while investigating methods to recover Ra-226 from uranium ores. The effect of( 228)Ra contamination on Ac-225 production by Ra-226 transmutation using fast reactors was evaluated. Consequently, toxic Ac-228 contaminates Ac-225. However, using the different half-lives of Ac-225 and Ac-228, pure Ac-225 can be obtained from the chemical separation of actinium after cooling for 5-8 days.

引用

页码：5987 / 5996

页数：10

共 36 条

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