Determination of the number of atoms of the long-lived nuclide 126Sn by γ-ray spectrometry

• Published in: Chinese physics C Vol. 34; no. 1; pp. 143 - 147
• Main Author: 沈洪涛 姜山 何明 董克君 李朝历 王祥高 贺国珠 龚杰 陆丽燕 李世琢 张大伟 石国柱 黄春堂 吴绍雷 武绍勇
• Format: Journal Article
• Language: English
• Published: IOP Publishing 2010
• Subjects: γ射线; 光谱测定; 加速器质谱; 原子数; 活性测定; 裂变产物; 长寿命
• ISSN: 1674-1137; 0254-3052; 2058-6132
• DOI: 10.1088/1674-1137/34/1/027

By using HPGe γ-ray spectrometry, the activity of the long-lived fission product 126Sn in a SnOB2 sample was measured. The number of 126Sn atoms and the ratio of 126Sn to Sn were calculated based on the half-life value of 2.35×105a and the chemical stoichiometry. The result of the ratio of 126Sn to Sn, （1.033±0.037）×10-8, is consistent with the results measured by the accelerator mass spectrometry （AMS） within uncertainty limits, which confirms our procedures in the measurement of 126Sn by AMS and lays a foundation for the AMS measurement of 126Sn at much lower levels.