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Bécares, V. and Pérez Martín, S. and Vázquez Antolín, Miriam and Villamarín, D. and Martín Fuertes, Francisco and González Romero, E.M. and Merino Rodríguez, Iván (2014). Review and comparison of effective delayed neutron fraction calculation methods with Monte Carlo codes. "Annals of Nuclear Energy", v. 65 (n. null); pp. 402-410. ISSN 0306-4549. https://doi.org/10.1016/j.anucene.2013.11.038.
Title: | Review and comparison of effective delayed neutron fraction calculation methods with Monte Carlo codes |
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Author/s: |
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Item Type: | Article |
Título de Revista/Publicación: | Annals of Nuclear Energy |
Date: | 2014 |
ISSN: | 0306-4549 |
Volume: | 65 |
Subjects: | |
Freetext Keywords: | Effective delayed neutron fraction, Adjoint flux, Monte Carlo, MCNPX |
Faculty: | E.T.S.I. Industriales (UPM) |
Department: | Otro |
Creative Commons Licenses: | Recognition - No derivative works - Non commercial |
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The calculation of the effective delayed neutron fraction, beff , with Monte Carlo codes is a complex task due to the requirement of properly considering the adjoint weighting of delayed neutrons. Nevertheless, several techniques have been proposed to circumvent this difficulty and obtain accurate Monte Carlo results for beff without the need of explicitly determining the adjoint flux. In this paper, we make a review of some of these techniques; namely we have analyzed two variants of what we call the k-eigenvalue technique and other techniques based on different interpretations of the physical meaning of the adjoint weighting. To test the validity of all these techniques we have implemented them with the MCNPX code and we have benchmarked them against a range of critical and subcritical systems for which either experimental or deterministic values of beff are available. Furthermore, several nuclear data libraries have been used in order to assess the impact of the uncertainty in nuclear data in the calculated value of beff .
Type | Code | Acronym | Leader | Title |
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FP7 | 232527 | CDT | STUDIECENTRUM VOOR KERNENERGIE / CENTRE D'ETUDE DE L'ENERGIE NUCLEAIRE | Central Design Team (CDT) for a Fast-spectrum Transmutation Experimental Facility |
FP7 | 232658 | CP-ESFR | COMMISSARIAT A L ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES | Collaborative Project on European Sodium Fast Reactor |
FP7 | 269665 | FREYA | STUDIECENTRUM VOOR KERNENERGIE / CENTRE D'ETUDE DE L'ENERGIE NUCLEAIRE | Fast Reactor Experiments for hYbrid Applications |
Item ID: | 33093 |
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DC Identifier: | https://oa.upm.es/33093/ |
OAI Identifier: | oai:oa.upm.es:33093 |
DOI: | 10.1016/j.anucene.2013.11.038 |
Official URL: | http://www.sciencedirect.com/science/article/pii/S030645491300635X |
Deposited by: | Memoria Investigacion |
Deposited on: | 12 Dec 2014 16:48 |
Last Modified: | 14 May 2019 12:34 |