Uranium age dating measurements by laser ablation multi-collector ICP-MS in uranium materials

被引：6

作者：

Varga, Zsolt ^{[1
]}

Nicholl, Adrian ^{[1
]}

Wallenius, Maria ^{[1
]}

Mayer, Klaus ^{[1
]}

机构：

[1] European Commiss Joint Res Ctr JRC, Karlsruhe, Germany

来源：

JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY | 2024年 / 333卷 / 07期

关键词：

Uranium; Age dating; Nuclear forensics; Nuclear safeguards; Inductively coupled plasma mass spectrometry; Laser ablation; NUCLEAR FORENSICS; ISOTOPIC COMPOSITION; RADIOCHRONOMETRY; SIGNATURE;

D O I：

10.1007/s10967-023-09229-0

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The aim of the present work was to develop a direct method for age dating (production date measurement) of uranium samples by laser ablation multi-collector inductively coupled plasma mass spectrometry (LA-MC-ICP-MS) by the measurement of the 230Th/234U ratio. The major instrumental conditions and sample characteristics affecting the accuracy and precision were investigated in this systematic study. By comparing the obtained LA-MC-ICP-MS results with those obtained after chemical separation measurements, it shows that the LA-MC-ICP-MS method is capable to produce accurate results for pure highly enriched uranium. Natural and low-enriched uranium, however, needs a higher mass resolution to remove the identified interferences, which can lead to erroneous results.

引用

页码：3553 / 3558

页数：6

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