Abstract
A project is underway to build and use a fission time projection chamber (TPC) to make high precision/accuracy measurements of neutron-induced fission cross sections to address issues in fast reactor design. A critical aspect of this program is to have thin TPC targets on thin backings with uniform deposits of the actinides. We have prepared, using vacuum deposition, 100–200 μg/cm2 deposits of 232Th, 235U and 238U on 30–100 μg/cm2 C backings with a measured thickness variation of <1.5%. To facilitate measurement of cross section ratios, we are preparing targets with an n-leaf clover design where each petal is a different nuclide.
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Acknowledgements
This material is based upon work supported by the United States Department of Energy, under Award Number DE-FG07-ID14887
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Loveland, W., Baker, J.D. Target preparation for the fission TPC. J Radioanal Nucl Chem 282, 361–363 (2009). https://doi.org/10.1007/s10967-009-0146-z
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DOI: https://doi.org/10.1007/s10967-009-0146-z