Inhibition of 137Cs contamination in cesium iodide

Y. D. Kim, I. S. Hahn, M. J. Hwang, Li Jin, W. G. Kang, H. J. Kim, S. C. Kim, S. K. Kim, S. Y. Kim, T. Y. Kim, J. W. Kwak, Y. J. Kwon, E. K. Lee, H. S. Lee, J. I. Lee, J. Y. Lee, M. J. Lee, S. S. Myung, H. Park, Alexander SchiedtH. Y. Yang, J. J. Zhu

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Abstract

We have extensively studied the mechanism of the Cs137 and Cs134 contamination in CsI compounds. The nuclei Cs137 and Cs134 in various samples have been studied using a HPGe detector at deep underground. The main source of the Cs137 contamination in CsI powder was water dissolved Cs137 used in the chemical process of cesium extraction at company side. We also found that Cs134 was produced mainly from Cs133 by neutron capture. We have successfully produced CsI powder containing no more than 2 mBq/kg of Cs137 by using only ultra-pure water for whole extraction process from raw ore (pollucite).

Original languageEnglish
Pages (from-to)456-462
Number of pages7
JournalNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume552
Issue number3
DOIs
Publication statusPublished - 2005 Nov 1

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All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics
  • Instrumentation

Cite this

Kim, Y. D., Hahn, I. S., Hwang, M. J., Jin, L., Kang, W. G., Kim, H. J., Kim, S. C., Kim, S. K., Kim, S. Y., Kim, T. Y., Kwak, J. W., Kwon, Y. J., Lee, E. K., Lee, H. S., Lee, J. I., Lee, J. Y., Lee, M. J., Myung, S. S., Park, H., ... Zhu, J. J. (2005). Inhibition of 137Cs contamination in cesium iodide. Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 552(3), 456-462. https://doi.org/10.1016/j.nima.2005.06.080