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Proceedings in Radiochemistry

A Supplement to Radiochimica Acta

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Online
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2193-2875
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Precision measurement of the half-life of 90mNb and 99mTc

H. Kikunaga / H. Fujisawa / K. Ooe
  • 3 Osaka University, Graduate School of Science, Department of Chemistr, Toyonaka, Osaka 560-0043, Japan
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/ R. Takayama / A. Shinohara / K. Takamiya / Y. Kasamatsu
  • 7 Japan Atmoic Energy Agency, Advanced Science Research Centre, Tokai, Ibaraki 319-1195, Japan
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/ Y. Ezaki / H. Haba / T. Nakanishi / T. Mitsugashira / et al.
Published Online: 2011-09-08 | DOI: https://doi.org/10.1524/rcpr.2011.0020

Abstract

We have produced 90mNb and 99mTc in the reactions of natZr(p,xn)90mNb and 100Mo(γ,n)99Mo, followed by disintegration to 99mTc, respectively, and measured the half-lives of these nuclides by using a reference source method. In order to determine the short half-lives of 90mNb precisely, an on-line gas-jet system has been employed. As a result, the half-lives of these nuclides were determined with good precision on the order of magnitude of 0.1%.

Keywords: Half-life; Radionucleides Nb-90; Tc-99m

About the article

Published Online: 2011-09-08

Published in Print: 2011-09-01


Citation Information: Proceedings in Radiochemistry A Supplement to Radiochimica Acta, Volume 1, Issue 1, Pages 113–116, ISSN (Print) xxxx-xxxx, DOI: https://doi.org/10.1524/rcpr.2011.0020.

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