Optimising Foil Selection for Neutron Activation Systems

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...

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Bibliographic Details
Published inJournal of fusion energy Vol. 41; no. 1; p. 12
Main Authors Wong, O., Smith, R., Nobs, C. R., Bruce, A. M.
Format Journal Article
LanguageEnglish
Published New York Springer US 01.06.2022
Springer
Springer Nature B.V
Springer Science + Business Media
Subjects
Accuracy
Algorithms
Energy spectra
Energy Systems
Entropy
Foils
Fusion reactors
Gamma rays
Geometry
High technology industry
Measurement techniques
Neutrons
Nuclear Energy
Nuclear Fusion
Original Research
Physics
Physics and Astronomy
Plasma Physics
Radiation
Sustainable Development
Neutron activation system
MAXED
Neutron spectrum unfolding
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Summary: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.
Bibliography:FG02-94ER40870
USDOE Office of Science (SC), Nuclear Physics (NP)
ISSN:0164-0313
1572-9591
DOI:10.1007/s10894-022-00324-w