Chinese Physics C > 2010, Vol. 34 > Issue(1): 143-147 DOI: 10.1088/1674-1137/34/1/027

Determination of the number of atoms of the long-lived nuclide¹²⁶Sn by γ-ray spectrometry

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Abstract：

By using HPGe γ-ray spectrometry, the activity of the long-lived fission product¹²⁶Sn in a SnOB₂sample was measured. The number of¹²⁶Sn atoms and the ratio of¹²⁶Sn to Sn were calculated based on the half-life value of 2.35×10⁵a and the chemical stoichiometry. The result of the ratio of¹²⁶Sn 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 of¹²⁶Sn by AMS and lays a foundation for the AMS measurement of¹²⁶Sn at much lower levels.

References

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. Oberli F et al. Int. J. Mass. Spec., 1999, 184: 1452. Firestone R B, Shirley V S et al. Table of Isotopes. 8th-ed,New York: John Wiley Sons Inc. 1998. 4106-41103. TIAN Wei-Zhi, NI Bang-Fa, WANG Ping-Sheng. J. Ra-dioanal. Nucl. Ch., 1993, 1: 274. ZHANG Sheng-Dong et al. J. Radioanal. Nucl. Ch., 1996,212: 935. Haas P, Gartenmann P T. Nucl. Instrum. Methods B, 1996,114: 1316. Catlow S A et al. J. Radioanal. Nucl. Ch., 2005, 263: 5997. WANG Yu-Sheng. J. Nucl. Radioch. and Radioch., 1980,2: 129 (in Chinese)8. Hubbel J H, Seltzer S M. Tables of X-ray Mass Attenua-tion Coefficients and Mass Energy-Absorption Coefficients1keV to 20 MeV for Elements Z=1 to 92 and 48 Additional Substances of Dosimetric Interest. Gaithersburg: National Institute of Standards and Technology, 1995. 50

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SHEN Hong-Tao, JIANG Shan, HE Ming, DONG Ke-Jun, LI Chao-Li, WANG Xiang-Gao, HE Guo-Zhu, GONG Jie, LU Li-Yan, LI Shi-Zhuo, ZHANG Da-Wei, SHI Guo-Zhu, HUANG Chun-Tang, WU Shao-Lei and WU Shao-Yong. Determination of the number of atoms of the long-lived nuclide ¹²⁶Sn by γ-ray spectrometry[J]. Chinese Physics C, 2010, 34(1): 143-147. doi: 10.1088/1674-1137/34/1/027

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Received: 2009-01-04
Revised: 2009-05-19

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沈阳化工大学材料科学与工程学院沈阳 110142

Determination of the number of atoms of the long-lived nuclide¹²⁶Sn by γ-ray spectrometry

Corresponding author:SHEN Hong-Tao,

Received Date:2009-01-04
Accepted Date:2009-05-19
Available Online:2010-01-05

Abstract:

By using HPGe γ-ray spectrometry, the activity of the long-lived fission product¹²⁶Sn in a SnOB₂sample was measured. The number of¹²⁶Sn atoms and the ratio of¹²⁶Sn to Sn were calculated based on the half-life value of 2.35×10⁵a and the chemical stoichiometry. The result of the ratio of¹²⁶Sn 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 of¹²⁶Sn by AMS and lays a foundation for the AMS measurement of¹²⁶Sn at much lower levels.