検索対象:     
報告書番号:
※ 半角英数字
 年 ~ 
 年

研究施設等廃棄物に含まれる放射性核種の簡易・迅速分析法(分析指針)

Simple and rapid determination methods for low-level radioactive wastes generated from nuclear research facilities (Guidelines for determination of radioactive waste samples)

亀尾 裕; 島田 亜佐子; 石森 健一郎; 原賀 智子; 片山 淳; 星 亜紀子; 中島 幹雄

Kameo, Yutaka; Shimada, Asako; Ishimori, Kenichiro; Haraga, Tomoko; Katayama, Atsushi; Hoshi, Akiko; Nakashima, Mikio

日本原子力研究開発機構原子力科学研究所及び大洗研究開発センターの研究施設から発生する放射性廃棄物を対象として抽出された処分安全評価上重要となる放射性核種及びウラン,トリウムを簡易・迅速に評価できる分析・測定法を開発した。主要な分析対象試料としては、原子力科学研究所の高減容処理施設において製作される溶融固化体を想定した。この溶融固化体試料に含まれる重要核種に対して、費用を低減しながらルーチン的に分析できる体制を確立することを目的に、非破壊$$gamma$$線測定の高効率化,試料前処理法及び核種分離法の簡易・迅速化,長寿命核種の迅速測定法の開発等を進め、この成果を分析指針としてまとめた。

Simple and rapid determination methods were developed for an evaluation of important nuclides, U, and Th in wastes generated from research facilities at Nuclear Science Research Institute and Oarai Research and Development Center. The present methods were assumed to apply to solidified products made from miscellaneous wastes by plasma melting at the Advanced Volume Reduction Facilities. In order to reduce costs of radiochemical analysis and to establish a routine analytical system, counting efficiency of non-destructive $$gamma$$-ray measurements was improved, and times for pretreatment of solidified product samples and subsequent radiochemical separations were shortened. In addition to this, rapid and high sensitive detection methods were developed for a determination of long-lived nuclides. The present paper describes guidelines for the determination of radionuclides in the low-level radioactive wastes by using the present simple and rapid methods.

Access

:

- Accesses

InCites™

:

Altmetrics

:

[CLARIVATE ANALYTICS], [WEB OF SCIENCE], [HIGHLY CITED PAPER & CUP LOGO] and [HOT PAPER & FIRE LOGO] are trademarks of Clarivate Analytics, and/or its affiliated company or companies, and used herein by permission and/or license.