Journal of Radioanalytical and Nuclear Chemistry

, Volume 287, Issue 1, pp 267–272 | Cite as

Preparation and measurement of the half-life of 101Tc

  • Xinfeng You
  • Shengdong Zhang
  • Zhihong Yang
  • Youqian Ding
  • Anzhi Cui


101Tc is a very important nuclide as fuel burn up monitor, and its half-life value has been measured many times, however, they were so different from each other. In this work, 101Tc liquid samples were prepared by irradiating analytical pure (NH4)6Mo7O24·4H2O solution in Miniature Neutron Source Reactor (MNSR) of China. A rapid procedure which takes only 5 min was developed to separate 101Tc samples. The final samples were analyzed by γ-ray spectrum using high purity Germanium (HPGe) multi-channel analysis system. The results showed that there were no peaks of other nuclides except 101Tc. The half-life of 101Tc was accurately measured with HPGe γ-detector following 306.8 keV γ-ray for about 140 min, and three methods R-value method, iterative method and translation method were adopted to process the data. Finally, a more precise and accurate value 14.02 ± 0.01 min was given and compared with former measured data.


101Tc Measurement of half-life Separate Tc from Mo 



The authors wish to thank Peijia Tang and Peng Ma of China Institute of Atomic Energy for their help of measurement with HPGe detector.


  1. 1.
    Sagane R, Kojima S, Mijamoto G, Ikawa M (1940) J Phys Rev 57:750CrossRefGoogle Scholar
  2. 2.
    Maurer W, Ramm W (1941) J Naturwissenschaften 29:368CrossRefGoogle Scholar
  3. 3.
    Hahn O, Strassmann F (1941) Z Physik 117:789CrossRefGoogle Scholar
  4. 4.
    Perlman ML, Friedlander G (1948) J Phys Rev 74:442CrossRefGoogle Scholar
  5. 5.
    Mock DL, Waddell BC, Fagg LW, Tobin RA (1948) J Phys Rev 74:1536CrossRefGoogle Scholar
  6. 6.
    Wiles DR (1954) J Phys Rev 93:181CrossRefGoogle Scholar
  7. 7.
    O’Kelley GD, Larson QV, Boyd GE (1957) J Bull Am Phys Soc 1:24Google Scholar
  8. 8.
    Kumabe I, Poularikas AD, Preiss IL, Gardner DG, Fink RW (1960) J Phys Rev 117:1568CrossRefGoogle Scholar
  9. 9.
    Firestone RB, Shirley VS (1996) Table of isotopes, 8th edn. Wiley, New YorkGoogle Scholar
  10. 10.
    Abzouzi A, Antony MS, Ndocko VB, Ndongue, Oster D (1990) J Radioanal Nucl Chem 145:361CrossRefGoogle Scholar

Copyright information

© Akadémiai Kiadó, Budapest, Hungary 2010

Authors and Affiliations

  • Xinfeng You
    • 1
  • Shengdong Zhang
    • 1
  • Zhihong Yang
    • 1
  • Youqian Ding
    • 1
  • Anzhi Cui
    • 1
  1. 1.Department of RadiochemistryChina Institute of Atomic EnergyBeijingPeople’s Republic of China

Personalised recommendations