X-ray absorption studies of borosilicate glasses containing dissolved actinides or surrogates

被引：0

作者：

Lopez, C. ^{[1
]}

Deschanels, X. ^{[1
]}

Den Auwer, C. ^{[1
]}

Cachia, J-N. ^{[1
]}

Peuget, S. ^{[1
]}

Bart, J-M. ^{[1
]}

机构：

[1] CEA Valrho Marcoule, F-30207 Bagnols Sur Ceze, France

来源：

PHYSICA SCRIPTA | 2005年 / T115卷

关键词：

D O I：

暂无

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The solubility of actinides and actinide surrogates in a nuclear borosilicate glass was studied with cerium, hafnium, neodymium, thorium and plutonium. Cerium is a possible surrogate for tetravalent and trivalent actinides such as plutonium, hafnium for tetravalent actinide such as thorium, and neodymium for trivalent actinides such as curium or americium. X-ray absorption spectroscopy was used to obtain data on the local environment of the dissolved elements in the glass network. For glasses melted at 1200 degrees C, the solubility limits of the elements studied were as follows: Nd > Ce > Th > Pu > Hf. A correlation has been established between the cation bonding covalence, the oxygen polyhedron and the solubility limit of the elements: the greater the solubility, the larger the oxygen bonds.

引用

页码：342 / 345

页数：4

共 12 条

[1] Excitation and emission profiles of Cm(III) and Cm(IV) in neat samples and lead borosilicate glasses [J].