Improved Monte Carlo – Perturbation Method For Estimation Of Control Rod Worths In A Research Reactor

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Improved Monte Carlo – Perturbation Method For Estimation Of Control Rod Worths In A Research Reactor. / Kalcheva, Silva; Koonen, Edgar; Beeckmans de West-Meerbeeck, André (Peer reviewer).

In: Annals of nuclear energy, Vol. 36, No. 3, 05.04.2009, p. 344-349.

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@article{34decd85e6594845a868cc804fdf38b0,
title = "Improved Monte Carlo – Perturbation Method For Estimation Of Control Rod Worths In A Research Reactor",
abstract = "A hybrid method dedicated to improve the experimental technique for estimation of control rod worths in a research reactor is presented. The method uses a combination of Monte Carlo technique and perturbation theory. Perturbation method is used to obtain the equation for the relative efficiency of control rod insertion. A series of coefficients, describing the axial absorption profile are used to correct the equation for a composite rod, having a complicated burn-up irradiation history. These coefficients have to be determined – by experiment or by using some theoretical/numerical method. In the present paper they are derived from the macroscopic absorption cross sections, obtained from detailed Monte Carlo calculations by MCNPX 2.6.F of the axial burn-up profile during control rod life. The method is validated on measurements of control rod worths at the BR2 reactor. Comparison with direct MCNPX evaluations of control rod worths is also presented.",
keywords = "control rod worth, perturbation method, MCNPX",
author = "Silva Kalcheva and Edgar Koonen and {Beeckmans de West-Meerbeeck}, Andr{\'e}",
note = "Score = 10",
year = "2009",
month = "4",
day = "5",
doi = "10.1016/j.anucene.2008.12.023",
language = "English",
volume = "36",
pages = "344--349",
journal = "Annals of nuclear energy",
issn = "0306-4549",
publisher = "Elsevier",
number = "3",

}

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TY - JOUR

T1 - Improved Monte Carlo – Perturbation Method For Estimation Of Control Rod Worths In A Research Reactor

AU - Kalcheva, Silva

AU - Koonen, Edgar

A2 - Beeckmans de West-Meerbeeck, André

N1 - Score = 10

PY - 2009/4/5

Y1 - 2009/4/5

N2 - A hybrid method dedicated to improve the experimental technique for estimation of control rod worths in a research reactor is presented. The method uses a combination of Monte Carlo technique and perturbation theory. Perturbation method is used to obtain the equation for the relative efficiency of control rod insertion. A series of coefficients, describing the axial absorption profile are used to correct the equation for a composite rod, having a complicated burn-up irradiation history. These coefficients have to be determined – by experiment or by using some theoretical/numerical method. In the present paper they are derived from the macroscopic absorption cross sections, obtained from detailed Monte Carlo calculations by MCNPX 2.6.F of the axial burn-up profile during control rod life. The method is validated on measurements of control rod worths at the BR2 reactor. Comparison with direct MCNPX evaluations of control rod worths is also presented.

AB - A hybrid method dedicated to improve the experimental technique for estimation of control rod worths in a research reactor is presented. The method uses a combination of Monte Carlo technique and perturbation theory. Perturbation method is used to obtain the equation for the relative efficiency of control rod insertion. A series of coefficients, describing the axial absorption profile are used to correct the equation for a composite rod, having a complicated burn-up irradiation history. These coefficients have to be determined – by experiment or by using some theoretical/numerical method. In the present paper they are derived from the macroscopic absorption cross sections, obtained from detailed Monte Carlo calculations by MCNPX 2.6.F of the axial burn-up profile during control rod life. The method is validated on measurements of control rod worths at the BR2 reactor. Comparison with direct MCNPX evaluations of control rod worths is also presented.

KW - control rod worth

KW - perturbation method

KW - MCNPX

UR - http://ecm.sckcen.be/OTCS/llisapi.dll/open/ezp_103267

UR - http://knowledgecentre.sckcen.be/so2/bibref/6647

U2 - 10.1016/j.anucene.2008.12.023

DO - 10.1016/j.anucene.2008.12.023

M3 - Article

VL - 36

SP - 344

EP - 349

JO - Annals of nuclear energy

JF - Annals of nuclear energy

SN - 0306-4549

IS - 3

ER -

ID: 325045