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Steps Toward Measurement of 135Cs with AMS at CIAE

  • Xinyi Yin (a1), Ming He (a1), Kejun Dong (a1), Yijun Pang (a1), Shaoyong Wu (a1) and Shan Jiang (a1)...

135Cs with a half-life of T 1/2=2.3×106 yr is an important nuclide in studies of the dispersal of nuclear material in the environment. Preliminary measurements using 133Cs as a proxy for the long-lived 135Cs, with accelerator mass spectrometry (AMS) have been developed at the China Institute of Atomic Energy (CIAE). In order to improve the sensitivity of 135Cs AMS measurement, a new conducting material, Fe powder, was used in the experiment. According to the present results, the background level that can be obtained with blanks was 135Ba/Cs~1.83×10–10 with the CIAE-AMS system. These measurements showed that the Fe was an inferior conducting medium because the interference of 135Ba in Fe powder is 10 times higher than that in Ag powder.

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Selected Papers from the 2015 Radiocarbon Conference, Dakar, Senegal, 16–20 November 2015

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  • ISSN: 0033-8222
  • EISSN: 1945-5755
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