Al-NaI放射性嬗变靶材的制备及其水化学稳定性Fabrication of Al-NaI target for radioactive transmutation and study of its hydration stability
刘慧强,凤仪,张学斌,李斌,余东波,朱艳芳,刘晓燕
摘要(Abstract):
采用通孔泡沫铝作基体的"包壳密封法"制备高含量NaI的Al-NaI放射性嬗变靶材。分别在20、50和80℃的蒸馏水中对未烧结和烧结过的Al-NaI放射性嬗变靶材进行水化学稳定性试验。用AAS-800原子吸收光谱仪对浸出时间分别为24、48、72和96 h的浸出溶液进行浓度测量,从而计算出不同条件下各种嬗变靶材在蒸馏水中的浸出率。结果表明,烧结后的靶材浸出率不会超过10%,远远低于未烧结的靶材,满足NaI嬗变率测量的实验要求。
关键词(KeyWords): 泡沫铝;Al-NaI靶材;水化学稳定性;浸出率
基金项目(Foundation): 国家高技术研究发展计划重点项目(2009AA050705)
作者(Author): 刘慧强,凤仪,张学斌,李斌,余东波,朱艳芳,刘晓燕
DOI: 10.13289/j.issn.1009-6264.2011.10.001
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