The influence of radioactive decay on actinide magnetic susceptibility measurements obtained using the Evans method

被引：7

作者：

Autillo, Matthieu ^{[1
]}

Kaden, Peter ^{[2
]}

Geist, Andreas ^{[2
]}

Guerin, Laetitia ^{[1
]}

Moisy, Philippe ^{[1
]}

Berthon, Claude ^{[1
]}

机构：

[1] CEA, Nucl Energy Div, Radio Chem & Proc Dept, DRCP, F-30207 Bagnols Sur Ceze, France

[2] Karlsruhe Inst Technol, Inst Nucl Waste Disposal INE, D-76021 Karlsruhe, Germany

来源：

PHYSICAL CHEMISTRY CHEMICAL PHYSICS | 2014年 / 16卷 / 18期

关键词：

PERCHLORIC-ACID SOLUTIONS; RADIATION-CHEMISTRY; AQUEOUS-SOLUTIONS; RADIOLYSIS; WATER; IONS; STATE;

D O I：

10.1039/c4cp00724g

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

In order to explain the higher magnetic susceptibility of some aquo actinide ions than predicted by Hund's rules, the molar magnetic susceptibilities of two americium isotopes (Am-241 and Am-243) were measured using the Evans method. The results obtained show a growing change in the magnetic susceptibility with alpha and also a beta(-) activity increase in solution. beta(-) particle effects appear to be stronger than radicals formed by alpha particles on the experimental values. The temperature dependence of Am(III) magnetic susceptibility has been observed but from experiments carried out here, it appears to be difficult to prove whether this effect arises from radicals or beta(-). Finally, magnetic susceptibilities of americium recorded in different media (HClO4, HCl, and HNO3) have been compared to alpha and beta emissions' impact.

引用

页码：8608 / 8614

页数：7

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