Optimising Foil Selection for Neutron Activation Systems

Wong, O.; Smith, R.; Nobs, C. R.; Bruce, A. M.

doi:10.1007/s10894-022-00324-w

Optimising Foil Selection for Neutron Activation Systems

Journal Article · Tue Jun 14 04:00:00 EDT 2022 · Journal of Fusion Energy

DOI:https://doi.org/10.1007/s10894-022-00324-w· OSTI ID:1872258

; Smith, R.; Nobs, C. R.; Bruce, A. M.

Abstract

Neutron spectrum unfolding using activation foils is currently the primary technique planned for measuring the neutron energy spectrum at the first wall of power-generating fusion reactors. Room for improvement in the effectiveness of current foil selection was identified, and a program produced to select foils procedurally in order to maximise the accuracy of the unfolding procedure. Using Kullback–Leibler Divergence to quantify the accuracy, the spectrum unfolded by the procedurally selected set of foils is found to be more accurate than the spectrum unfolded by a set of foils used in the literature.

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Sponsoring Organization:: USDOE Office of Science (SC), Nuclear Physics (NP)

Grant/Contract Number:: FG02-94ER40870

OSTI ID:: 1872258

Alternate ID(s):: OSTI ID: 1976687

Journal Information:: Journal of Fusion Energy, Journal Name: Journal of Fusion Energy Journal Issue: 1 Vol. 41; ISSN 0164-0313

Publisher:: Springer Science + Business MediaCopyright Statement

Country of Publication:: United States

Language:: English

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