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Preparation of iridium targets by electrodeposition for neutron capture cross section measurements

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Abstract

The preparation of 191Ir and 193Ir electrodeposits for neutron capture cross-section measurements at the detector for advanced neutron capture experiments located at the at Los Alamos Neutron Science Center is described. The electrodeposition of iridium in the desired thickness of 0.4–1 mg/cm2 is challenging. Better yields and thicknesses were obtained using electrodeposition from isopropyl alcohol solutions than from ammonium sulfate solutions. 191Ir and 193Ir targets were initially prepared using the standard single-sided electrodeposition cell. Iridium electrodepositions using a double-sided electrodeposition cell were developed and were optimized, resulting in thick, uniform iridium deposits. LA UR 15-22475.

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Acknowledgments

We would like to express our gratitude to Moses Attrep for helpful discussions on iridium dissolution and chemistry. Work was performed under the auspices of the US Department of Energy at Los Alamos National Laboratory by the Los Alamos National Security LLC, Contract No. DE-AC52-06NA25396. This paper is LA UR 15-22475.

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Authors and Affiliations

  1. C-NR, MS J-514, Los Alamos National Laboratory, Los Alamos, NM, 87545, USA

    Evelyn M. Bond, Todd A. Bredeweg, Marian Jandel & Gencho Y. Rusev

  2. Environmental Radiation Programs, Florida Department of Health, Bureau of Radiation Control, PO Box 680069, Orlando, FL, 32868-0069, USA

    W. Allen Moody

  3. NEN-5, MS C-921, Los Alamos National Laboratory, Los Alamos, NM, 87545, USA

    Charles Arnold

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  1. Evelyn M. Bond
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  2. W. Allen Moody
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  3. Charles Arnold
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  4. Todd A. Bredeweg
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  5. Marian Jandel
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  6. Gencho Y. Rusev
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Correspondence to Evelyn M. Bond.

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Bond, E.M., Moody, W.A., Arnold, C. et al. Preparation of iridium targets by electrodeposition for neutron capture cross section measurements. J Radioanal Nucl Chem 307, 1981–1986 (2016). https://doi.org/10.1007/s10967-015-4607-2

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  • DOI: https://doi.org/10.1007/s10967-015-4607-2

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