The experimental determination and evaluation of the three-dimensional fission density distribution of the IPEN/MB-01 research reactor facility for the IRPhE project

Adimir Dos Santos; Leda C.C.B. Fanaro; Graciete S. De Andrade E Silva; Arlindo G. Mendonça

doi:10.1016/j.anucene.2010.09.032

The experimental determination and evaluation of the three-dimensional fission density distribution of the IPEN/MB-01 research reactor facility for the IRPhE project

Adimir Dos Santos
, Leda C.C.B. Fanaro
, Graciete S. De Andrade E Silva
, Arlindo G. Mendonça

Criticality Safety Analysis and Research

Research output: Contribution to journal › Article › peer-review

9 Scopus citations

Abstract

Experiments for the determination of the three-dimensional fission density distribution were successfully carried out at the IPEN/MB-01 research reactor facility. The experiment is of very good quality for utilization in the benchmark of computer codes and related nuclear data library commonly used for the calculation of fission density distribution in reactor cores. The complete experimental data set comprises a very massive set of measured fission density distribution. The experiment was evaluated and included in the IRPhE handbook. Two calculation methodologies were employed for the theoretical analysis of the proposed benchmark; one stochastic (MCNP-5) and the other one deterministic (NJOY/AMPX-II/TORT); both utilizing ENDF/B-VII.0 as the source of nuclear data. The theory/experiment comparison reveals in general a good agreement for both methodologies. However, MCNP-5 results are in a better shape than those of TORT. TORT underestimates the relative power distribution mainly in the axial upper part of the fuel rod. This effect is mostly credited to the over-prediction of the control bank worth.

Original language	English
Pages (from-to)	418-430
Number of pages	13
Journal	Annals of Nuclear Energy
Volume	38
Issue number	2-3
DOIs	https://doi.org/10.1016/j.anucene.2010.09.032
State	Published - 2011

Funding

The authors are grateful to Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) for providing computational resources for the research Project No. 2001/14450-0.

Keywords

Benchmark
ENDF/B-VII.0
Fission density distribution
IPEN/MB-01 reactor
IRPhE
TORT

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10.1016/j.anucene.2010.09.032

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title = "The experimental determination and evaluation of the three-dimensional fission density distribution of the IPEN/MB-01 research reactor facility for the IRPhE project",

abstract = "Experiments for the determination of the three-dimensional fission density distribution were successfully carried out at the IPEN/MB-01 research reactor facility. The experiment is of very good quality for utilization in the benchmark of computer codes and related nuclear data library commonly used for the calculation of fission density distribution in reactor cores. The complete experimental data set comprises a very massive set of measured fission density distribution. The experiment was evaluated and included in the IRPhE handbook. Two calculation methodologies were employed for the theoretical analysis of the proposed benchmark; one stochastic (MCNP-5) and the other one deterministic (NJOY/AMPX-II/TORT); both utilizing ENDF/B-VII.0 as the source of nuclear data. The theory/experiment comparison reveals in general a good agreement for both methodologies. However, MCNP-5 results are in a better shape than those of TORT. TORT underestimates the relative power distribution mainly in the axial upper part of the fuel rod. This effect is mostly credited to the over-prediction of the control bank worth.",

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year = "2011",

doi = "10.1016/j.anucene.2010.09.032",

language = "English",

volume = "38",

pages = "418--430",

journal = "Annals of Nuclear Energy",

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The experimental determination and evaluation of the three-dimensional fission density distribution of the IPEN/MB-01 research reactor facility for the IRPhE project. / Dos Santos, Adimir; Fanaro, Leda C.C.B.; De Andrade E Silva, Graciete S. et al.
In: Annals of Nuclear Energy, Vol. 38, No. 2-3, 2011, p. 418-430.

Research output: Contribution to journal › Article › peer-review

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T1 - The experimental determination and evaluation of the three-dimensional fission density distribution of the IPEN/MB-01 research reactor facility for the IRPhE project

AU - Dos Santos, Adimir

AU - Fanaro, Leda C.C.B.

AU - De Andrade E Silva, Graciete S.

AU - Mendonça, Arlindo G.

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AB - Experiments for the determination of the three-dimensional fission density distribution were successfully carried out at the IPEN/MB-01 research reactor facility. The experiment is of very good quality for utilization in the benchmark of computer codes and related nuclear data library commonly used for the calculation of fission density distribution in reactor cores. The complete experimental data set comprises a very massive set of measured fission density distribution. The experiment was evaluated and included in the IRPhE handbook. Two calculation methodologies were employed for the theoretical analysis of the proposed benchmark; one stochastic (MCNP-5) and the other one deterministic (NJOY/AMPX-II/TORT); both utilizing ENDF/B-VII.0 as the source of nuclear data. The theory/experiment comparison reveals in general a good agreement for both methodologies. However, MCNP-5 results are in a better shape than those of TORT. TORT underestimates the relative power distribution mainly in the axial upper part of the fuel rod. This effect is mostly credited to the over-prediction of the control bank worth.

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The experimental determination and evaluation of the three-dimensional fission density distribution of the IPEN/MB-01 research reactor facility for the IRPhE project

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