Abstract
The improvements of the neutron unfolding package code NEUPAC-83 were made sucessfully on several points such as an introduction of non-negative estimation algorithm (J-log method) and a preparation of the dosimetry cross section with covariance library.
In addition to these improvements, systematic study has been made by the NEUPAC-83, focussing our attention on the spectral covariance effects in the adjustment calculations. The results may be summarized as follows:
(1) adjusted integral values are influenced considerably by the prior probability density function of initial neutron spectrum, especially by the correlation factor, and (2) the determination method of statistically permitted area of the solutions should be applied more effectively in the adjustment calculation.
Keywords
- Neutron Spectrum
- Adjustment Calculation
- Nuclear Cross Section
- Linear Estimation Method
- Prior Probability Density Function
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
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References
M. Nakazawa and A. Sekiguchi, “Several Applications of Jl- Unfolding Method of Multiple-Foil Data to Reactor Neutron Dosimetry”, The 3rd ASTM-EURATOM Symp. on Reactor Dosimetry, Ispra 1979.
T.Taniguchi et al., “Neutron Unfolding Package Code NEUPAC- 83 “, NEUT Research Report 83–10, 1983.
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Proceeding of 2nd PNC/DOE Specialists1 Meeting on Collaborative Dosimetry Test, SA013 FWG81–01, 1981.
M. Nakazawa et al., “A New Adjustment Code Based on The Bayes’ Theory Combined with The Monte-Carlo Technique”, The 5th ASTMEURATOM Symp. on Reactor Dosimetry, Geesthacht, Sept. 1984
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© 1985 Springer Science+Business Media Dordrecht
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Taniguchi, T., Ueda, N., Nakazawa, M., Sekiguchi, A. (1985). Systematic Study on Spectral Effects in the Adjustment Calculations Using the NEUPAC-83 Code. In: Genthon, J.P., Röttger, H. (eds) Reactor Dosimetry. Springer, Dordrecht. https://doi.org/10.1007/978-94-010-9726-0_16
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DOI: https://doi.org/10.1007/978-94-010-9726-0_16
Publisher Name: Springer, Dordrecht
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