21-29 July 2022
US/Pacific timezone

Measurement of the $^{233}$U(n,$\gamma$) cross section at LANSCE

26 Jul 2022, 12:15
Folsom ()



Esther Leal Cidoncha


The $^{233}$U plays an important role in the Th-U fuel cycle, that has been proposed as an alternative to the U-Pu fuel cycle due to its reduced amount of transuranium elements. The available experimental $^{233}$U(n,$\gamma$) cross section data in the literature are scarce and were measured decades ago [1-3]. In 2008, the $^{233}$U(n,$\gamma$) cross section was investigated at LANL using the DANCE detector combined with a PPAC, however the statistics in the keV regime were inadequate for a reliable extraction of the cross section at 100 keV. An accurate measurement of the $^{233}$U(n,$\gamma$) cross section is required by the NCSP (National Critically Safety Program) to complete the neutron-induced cross section data, and also, as reported by the ORNL, a new evaluation with revised (renormalized) fission cross section is needed on $^{233}$U.

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