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<p>Solvent extraction was used to selectively extract I-132 from a solution of neutron irradiated uranium and its fission products. The isolated I-132 was then counted using gamma spectroscopy to determine the relative gamma branching ratios. The uncertainties in most of the I-132 relative branching ratios with intensities greater than 0.25% were reduced to less than 10%. An indirect measurement of the I-132 absolute branching ratio of the main 667.7 keV emission of I-132 using the activity of the Te-132 parent sorbed onto a Cu foil was found to be 0.984 ± 0.038. A comparison with the currently accepted emission data is presented.</p>

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Separation of I-132 from fission products by solvent extraction for gamma ray branching ratio determination

  • 期刊论文

  • 发表日期：

    2025年10月31日

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  • Joseph L. Lapka,
  • Robert Fuller,
  • D. A. Haas

摘要

Solvent extraction was used to selectively extract I-132 from a solution of neutron irradiated uranium and its fission products. The isolated I-132 was then counted using gamma spectroscopy to determine the relative gamma branching ratios. The uncertainties in most of the I-132 relative branching ratios with intensities greater than 0.25% were reduced to less than 10%. An indirect measurement of the I-132 absolute branching ratio of the main 667.7 keV emission of I-132 using the activity of the Te-132 parent sorbed onto a Cu foil was found to be 0.984 ± 0.038. A comparison with the currently accepted emission data is presented.