Use of integral experiments to test a new 235U evaluation for the cielo project

R. Ichou; N. Leclaire; L. Leal; E. Ivanov; W. Haeck

Use of integral experiments to test a new ²³⁵U evaluation for the cielo project

R. Ichou
, N. Leclaire
, L. Leal
, E. Ivanov
, W. Haeck

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

1 Scopus citations

Abstract

To improve the ²³³U capture cross-section, a new ²³³U evaluation has been proposed by IRSN in the thermal to 2.25 keV energy range. IRSN has also carried out benchmark calculations using few benchmarks, extracted from the ICSBEP database, for testing the new ²³⁵U evaluation. The benchmarks have been selected by privileging the experiments showing small experimental uncertainties and sensitivity to the ²³³U capture cross-section. The k_eff calculations were performed with both the MCNP6 code and the 5.C.1 release of the MORET5 code, using the JEFF3.2 library for all isotopes except ²³⁵U, for which both the JEFF3.2 and the new ²³⁵U evaluation were used. The new evaluation was also used with the ²³³U JENDL4 library and tested in a JEFF3.2 environment for all the other nuclides. The benchmark selection allowed highlighting a significant effect on k_eff due to the new ²³⁵U evaluation. The results of this data testing, provided as input for the evaluators, are presented here.

Original language	English
Title of host publication	Physics of Reactors 2016, PHYSOR 2016
Subtitle of host publication	Unifying Theory and Experiments in the 21st Century
Publisher	American Nuclear Society
Pages	318-327
Number of pages	10
ISBN (Electronic)	9781510825734
State	Published - 2016
Externally published	Yes
Event	Physics of Reactors 2016: Unifying Theory and Experiments in the 21st Century, PHYSOR 2016 - Sun Valley, United States Duration: May 1 2016 → May 5 2016

Publication series

Name	Physics of Reactors 2016, PHYSOR 2016: Unifying Theory and Experiments in the 21st Century
Volume	1

Conference

Conference	Physics of Reactors 2016: Unifying Theory and Experiments in the 21st Century, PHYSOR 2016
Country/Territory	United States
City	Sun Valley
Period	05/1/16 → 05/5/16

Keywords

ICSBEP benchmarks
MCNP6
MORETS.C.1
U evaluation

Cite this

Ichou, R., Leclaire, N., Leal, L., Ivanov, E., & Haeck, W. (2016). Use of integral experiments to test a new ²³⁵U evaluation for the cielo project. In Physics of Reactors 2016, PHYSOR 2016: Unifying Theory and Experiments in the 21st Century (pp. 318-327). (Physics of Reactors 2016, PHYSOR 2016: Unifying Theory and Experiments in the 21st Century; Vol. 1). American Nuclear Society.

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title = "Use of integral experiments to test a new 235U evaluation for the cielo project",

abstract = "To improve the 233U capture cross-section, a new 233U evaluation has been proposed by IRSN in the thermal to 2.25 keV energy range. IRSN has also carried out benchmark calculations using few benchmarks, extracted from the ICSBEP database, for testing the new 235U evaluation. The benchmarks have been selected by privileging the experiments showing small experimental uncertainties and sensitivity to the 233U capture cross-section. The keff calculations were performed with both the MCNP6 code and the 5.C.1 release of the MORET5 code, using the JEFF3.2 library for all isotopes except 235U, for which both the JEFF3.2 and the new 235U evaluation were used. The new evaluation was also used with the 233U JENDL4 library and tested in a JEFF3.2 environment for all the other nuclides. The benchmark selection allowed highlighting a significant effect on keff due to the new 235U evaluation. The results of this data testing, provided as input for the evaluators, are presented here.",

keywords = "ICSBEP benchmarks, MCNP6, MORETS.C.1, U evaluation",

author = "R. Ichou and N. Leclaire and L. Leal and E. Ivanov and W. Haeck",

year = "2016",

language = "English",

series = "Physics of Reactors 2016, PHYSOR 2016: Unifying Theory and Experiments in the 21st Century",

publisher = "American Nuclear Society",

pages = "318--327",

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note = "Physics of Reactors 2016: Unifying Theory and Experiments in the 21st Century, PHYSOR 2016 ; Conference date: 01-05-2016 Through 05-05-2016",

}

Ichou, R, Leclaire, N, Leal, L, Ivanov, E & Haeck, W 2016, Use of integral experiments to test a new ²³⁵U evaluation for the cielo project. in Physics of Reactors 2016, PHYSOR 2016: Unifying Theory and Experiments in the 21st Century. Physics of Reactors 2016, PHYSOR 2016: Unifying Theory and Experiments in the 21st Century, vol. 1, American Nuclear Society, pp. 318-327, Physics of Reactors 2016: Unifying Theory and Experiments in the 21st Century, PHYSOR 2016, Sun Valley, United States, 05/1/16.

Use of integral experiments to test a new ²³⁵U evaluation for the cielo project. / Ichou, R.; Leclaire, N.; Leal, L. et al.
Physics of Reactors 2016, PHYSOR 2016: Unifying Theory and Experiments in the 21st Century. American Nuclear Society, 2016. p. 318-327 (Physics of Reactors 2016, PHYSOR 2016: Unifying Theory and Experiments in the 21st Century; Vol. 1).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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AB - To improve the 233U capture cross-section, a new 233U evaluation has been proposed by IRSN in the thermal to 2.25 keV energy range. IRSN has also carried out benchmark calculations using few benchmarks, extracted from the ICSBEP database, for testing the new 235U evaluation. The benchmarks have been selected by privileging the experiments showing small experimental uncertainties and sensitivity to the 233U capture cross-section. The keff calculations were performed with both the MCNP6 code and the 5.C.1 release of the MORET5 code, using the JEFF3.2 library for all isotopes except 235U, for which both the JEFF3.2 and the new 235U evaluation were used. The new evaluation was also used with the 233U JENDL4 library and tested in a JEFF3.2 environment for all the other nuclides. The benchmark selection allowed highlighting a significant effect on keff due to the new 235U evaluation. The results of this data testing, provided as input for the evaluators, are presented here.

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