Two-Group Theory of the Feynman-Alpha Method for Reactivity Measurement in ADS

Two-Group Theory of the Feynman-Alpha Method for Reactivity Measurement in ADS

The theory of the Feynman-alpha method, which is used to determine the subcritical reactivity of systems driven by an external source such as an ADS, is extended to two energy groups with the inclusion of delayed neutrons. This paper presents a full derivation of the variance to mean formula with th...

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Main Authors: Lénárd Pál, Imre Pázsit
Format: Article
Language:English
Published: Hindawi Limited 2012-01-01
Series:Science and Technology of Nuclear Installations
Online Access:http://dx.doi.org/10.1155/2012/620808
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spelling doaj-270c7e38512545fda3617635d76c32b52020-11-25T01:05:08ZengHindawi LimitedScience and Technology of Nuclear Installations1687-60751687-60832012-01-01201210.1155/2012/620808620808Two-Group Theory of the Feynman-Alpha Method for Reactivity Measurement in ADSLénárd Pál0Imre Pázsit1Centre for Energy Research, Hungarian Academy of Sciences, P.O. Box 49, 1525 Budapest, HungaryDepartment of Nuclear Engineering, Chalmers University of Technology, SE 412 96 Göteborg, SwedenThe theory of the Feynman-alpha method, which is used to determine the subcritical reactivity of systems driven by an external source such as an ADS, is extended to two energy groups with the inclusion of delayed neutrons. This paper presents a full derivation of the variance to mean formula with the inclusion of two energy groups and delayed neutrons. The results are illustrated quantitatively and discussed in physical terms.http://dx.doi.org/10.1155/2012/620808
collection DOAJ
language English
format Article
sources DOAJ
author Lénárd Pál
Imre Pázsit
spellingShingle Lénárd Pál
Imre Pázsit
Two-Group Theory of the Feynman-Alpha Method for Reactivity Measurement in ADS
Science and Technology of Nuclear Installations
author_facet Lénárd Pál
Imre Pázsit
author_sort Lénárd Pál
title Two-Group Theory of the Feynman-Alpha Method for Reactivity Measurement in ADS
title_short Two-Group Theory of the Feynman-Alpha Method for Reactivity Measurement in ADS
title_full Two-Group Theory of the Feynman-Alpha Method for Reactivity Measurement in ADS
title_fullStr Two-Group Theory of the Feynman-Alpha Method for Reactivity Measurement in ADS
title_full_unstemmed Two-Group Theory of the Feynman-Alpha Method for Reactivity Measurement in ADS
title_sort two-group theory of the feynman-alpha method for reactivity measurement in ads
publisher Hindawi Limited
series Science and Technology of Nuclear Installations
issn 1687-6075
1687-6083
publishDate 2012-01-01
description The theory of the Feynman-alpha method, which is used to determine the subcritical reactivity of systems driven by an external source such as an ADS, is extended to two energy groups with the inclusion of delayed neutrons. This paper presents a full derivation of the variance to mean formula with the inclusion of two energy groups and delayed neutrons. The results are illustrated quantitatively and discussed in physical terms.
url http://dx.doi.org/10.1155/2012/620808
work_keys_str_mv AT lenardpal twogrouptheoryofthefeynmanalphamethodforreactivitymeasurementinads
AT imrepazsit twogrouptheoryofthefeynmanalphamethodforreactivitymeasurementinads
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