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Note on the Mechanism of Non-isotopic Exchange of the Dopant in Gamma Irradiated Mixed Crystals

 

作者: R. M. Mahfouz,   M. A. Hefni,  

 

期刊: Isotopenpraxis Isotopes in Environmental and Health Studies  （Taylor Available online 1987）
卷期: Volume 23, issue 8  

页码: 298-299

 

ISSN:0021-1915

 

年代: 1987

 

DOI:10.1080/10256018708623820

 

出版商: Taylor & Francis Group

 

关键词: annealing;chromium 51;crystal doping;doped materials;heat treatment;irradiation;sulfates

 

数据来源: Taylor

 

摘要:

Non-isotopic exchange in gamma irradiated mixed crystals of K2SO4-Na2SO4doped with51Cr(III) has been investigated before and after annealing treatments. Oxidation of51Cr(III) to51Cr(VI) and formation of51CrO2−4matrix occured as a result of gamma irradiation. The results have been discussed in the light of oxygen-vacancies formation and recombination reactions.

 

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