Influence of alpha and gamma radiolysis on Pu retention in the solvent TBP/kerosene-Reference-Cited by-同舟云学术

Influence of alpha and gamma radiolysis on Pu retention in the solvent TBP/kerosene

Published:2014-12-01 Issue:4 Volume:59 Page:123-128
ISSN:0029-5922
Container-title:Nukleonika
language:en
Short-container-title:

Author:

Gao Yang¹,Zheng Weifang²,Cao Xiaoming³,Chen Shaolei³

Affiliation:

1. Fundamental Science on Nuclear Safety and Simulation Technology Laboratory, Harbin Engineering University, Harbin, Heilongjiang Province, China, 150001 and Institute of Radiochemistry, China Institute of Atomic Energy, Beijing, China, 102413, Tel.: +86 451 8251 8913, Fax: +86 451 8251 8400

2. Institute of Radiochemistry, China Institute of Atomic Energy, Beijing, China, 102413

3. Fundamental Science on Nuclear Safety and Simulation Technology Laboratory, Harbin Engineering University, Harbin, Heilongjiang Province, China, 150001

Abstract

Abstract In light of the issue of radiolysis of the solvent system in PUREX process, alpha and gamma radiation stability of tributyl phosphate (TBP)/kerosene (OK) have been studied in this paper, in which 238Pu dissolved in the organic phase and 60Co are selected as alpha and gamma irradiation sources, respectively. The amount of the degradation products not easily removed after the washing process has been measured by the plutonium retention. The effects of the absorbed dose, the TBP volume fraction, the cumulative absorbed dose and the presence of UO2 2+ and Zr4+ on the radiolysis of the solvents have been investigated. The results have indicated that the Pu retention increases with the increase of the absorbed dose after alpha or gamma irradiation, and is larger for the solvent containing less TBP. There is competition between UO2 2+ and Pu4+ to complex with the degradation products, and Zr4+ accelerates the radiolysis of the system.

Publisher

Walter de Gruyter GmbH

Subject

Waste Management and Disposal,Condensed Matter Physics,Safety, Risk, Reliability and Quality,Instrumentation,Nuclear Energy and Engineering,Nuclear and High Energy Physics

Link

https://www.sciendo.com/pdf/10.2478/nuka-2014-0024

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