表面技术2016，Vol.45Issue(7)：173-177,5.DOI:10.16490/j.cnki.issn.1001-3660.2016.07.029
薄膜型90Sr放射源制备工艺研究
Study on Preparation of Strontium-90 Radioactive Source
胡睿 1熊晓玲 1邓建 1董文丽 1彭太平1
作者信息
- 1. 中国工程物理研究院 核物理与化学研究所，四川 绵阳621999
- 折叠
摘要
Abstract
Objective In order to match with 90Sr isotope batteries, 90Sr radioactive sources on the appointed nonmetallic material are needed. Therefore, a new preparation method of 90Sr radioactive sources was studied. Methods Dicyclohexano- 18-crown-6 could not only coordinate with strontium ion but also had good resistance to radiation. The coordination technology was used to load the strontium nitrate on the crown molecule, then the product was dissolved in a functional polymer. After dropping the liquid containing strontium onto the appointed nonmetallic material, the film was dried at room temperature. The films were characterized by IR, TG, DSC, EDS and elemental analysis. Also, the binding properties between the film containing strontium and the substrate material were investigated before and after being experienced by the γ irradiation of a total dose of 116 kGy. Results The loading rate of strontium was greater than 93%. Compared with post-irradiation, the increased oscillation dropping powder rate of pre-irradiation was less than 1.3%. The results from tracing experiments showed that the relative standard deviation of the distribution of strontium in the surface of films was about 7%. Conclusion The process can obtain the strontium radioactive film on the appointed nonmetallic material, and the film is combined with substrate firmly. Strontium distribution uniformity satisfies relevant industrial standards.关键词
90Sr/双环己烷-18-冠醚-6/配合物/抗辐照性/同位素电池Key words
90Sr/dicyclohexano-18-crown-6/coordination compound/radiation resistance/isotope batteries分类
通用工业技术引用本文复制引用
胡睿,熊晓玲,邓建,董文丽,彭太平..薄膜型90Sr放射源制备工艺研究[J].表面技术,2016,45(7):173-177,5.
