Thermal and Epithermal Fluence Rate Measurements in Multipurpose Reactors: Application of a Least-Squares Fitting Code RESDET to Obtain Thermal and Epithermal Fluence Rates from Measured Reaction Rates

A generalized least-squares, two group neutron spectrum adjustment code is presented that uses measured reaction rates of activation foils and thermal and epithermal energy cross-section data to calculate the thermal and epithermal fluence rates in case of well-moderated neutron spectra. The code us...

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Bibliographic Details
Published in:Journal of ASTM International 2007-04, Vol.4 (4), p.1-6
Main Authors: Voorbraak, W. P., Freudenreich, W. E., Leendertse, G. P., Aaldijk, J. K.
Format: Article
Language:English
Online Access:Get full text
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Summary:A generalized least-squares, two group neutron spectrum adjustment code is presented that uses measured reaction rates of activation foils and thermal and epithermal energy cross-section data to calculate the thermal and epithermal fluence rates in case of well-moderated neutron spectra. The code uses the covariance matrices of the measurements and cross sections to produce the covariance matrix of the calculated thermal and epithermal fluence rates. The report also gives some application examples of the code.
ISSN:1546-962X
1546-962X
DOI:10.1520/JAI101141