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Holdup measurements on an SRNL Mossbauer spectroscopy instrument

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Abstract

Gamma-ray holdup measurements of a Mossbauer spectroscopy instrument are described and modeled. In the qualitative acquisitions obtained in a low background area of Savannah River National Laboratory, only Am-241 and Np-237 activity were observed. The Am-241 was known to be the instrumental activation source, while the Np-237 is clearly observed as a source of contamination internal to the instrument. The two sources of activity are modeled separately in two acquisition configurations using two separate modeling tools. The results agree well, demonstrating a content of (1980 ± 150) μCi Am-241 and (110 ± 50) μCi of Np-237.

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Authors and Affiliations

  1. Savannah River National Laboratory, Aiken, SC, 29808, USA

    R. A. Dewberry, T. B. Brown & S. R. Salaymeh

Authors
  1. R. A. Dewberry
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  2. T. B. Brown
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  3. S. R. Salaymeh
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Corresponding author

Correspondence to R. A. Dewberry.

Appendix

Appendix

See Table 4.

Table 4 Matrix element sum of vertical line source to simulate integral including container absorption over an axial view of a cylindrical source
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Dewberry, R.A., Brown, T.B. & Salaymeh, S.R. Holdup measurements on an SRNL Mossbauer spectroscopy instrument. J Radioanal Nucl Chem 287, 299–309 (2011). https://doi.org/10.1007/s10967-010-0743-x

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  • DOI: https://doi.org/10.1007/s10967-010-0743-x

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