Optimization of alkali fusion process for determination of I-129 in solidified radwastes by neutron activation

被引：1

作者：

Chao, Jiunn-Hsing ^{[1
]}

Chuang, Chun-Yu ^{[2
]}

Chou, Wei-Chun ^{[2
,3
]}

Kuo, Chun-Liang ^{[4
]}

Chang, Feng-Chih ^{[5
]}

Chiang, An-Chung ^{[1
]}

机构：

[1] Natl Tsing Hua Univ, Nucl Sci & Technol Dev Ctr, Hsinchu 30013, Taiwan

[2] Natl Tsing Hua Univ, Dept Biomed Engn & Environm Sci, Hsinchu 30013, Taiwan

[3] Kansas State Univ, Coll Vet Med, Dept Anat & Physiol, Inst Computat Comparat Med, Manhattan, KS 66506 USA

[4] Hsinchu Mackay Mem Hosp, Dept Nucl Med, Hsinchu 30071, Taiwan

[5] Inst Nucl Energy Res, Chem Div, Longtan 32546, Taiwan

来源：

APPLIED RADIATION AND ISOTOPES | 2021年 / 176卷

关键词：

I-129; Radwaste; Alkali fusion; Neutron activation analysis;

D O I：

10.1016/j.apradiso.2021.109762

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

This study determines the optimum temperature for the alkali fusion process used to effectively separate iodine from solidified radwaste attaining low-level I-129 by neutron activation. The alkali fusion temperature was adjusted to 120, 200, and 400 degrees C to approach the optimum conditions associated with a good statistical distribution of the measured I-129 data and high chemical recovery yield. Statistical analysis revealed that the optimum temperature of the alkali fusion process was 200 degrees C, displaying good central tendency and low variance of the measured I-129 data, and the respective chemical recovery yields were higher than other temperatures. The optimum fusion condition provides more reliable scaling factors (I-129/Cs-137) of radwaste.

引用

页数：7