Estimating the gamma-ray contribution to the signal of fission chambers with Monte Carlo simulations

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Estimating the gamma-ray contribution to the signal of fission chambers with Monte Carlo simulations. / Filliatre, Philippe; Vermeeren, Ludo; Jammes, Christian; Geslot, Benoit; Fourmentel, Damien; Wéber, Marcel (Peer reviewer).

In: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 648, No. 1, 02.06.2011, p. 228-237.

Research output: Contribution to journalArticlepeer-review

Harvard

Filliatre, P, Vermeeren, L, Jammes, C, Geslot, B, Fourmentel, D & Wéber, M 2011, 'Estimating the gamma-ray contribution to the signal of fission chambers with Monte Carlo simulations', Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, vol. 648, no. 1, pp. 228-237. https://doi.org/10.1016/j.nima.2011.05.065

APA

Filliatre, P., Vermeeren, L., Jammes, C., Geslot, B., Fourmentel, D., & Wéber, M. (2011). Estimating the gamma-ray contribution to the signal of fission chambers with Monte Carlo simulations. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 648(1), 228-237. https://doi.org/10.1016/j.nima.2011.05.065

Vancouver

Filliatre P, Vermeeren L, Jammes C, Geslot B, Fourmentel D, Wéber M. Estimating the gamma-ray contribution to the signal of fission chambers with Monte Carlo simulations. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 2011 Jun 2;648(1):228-237. https://doi.org/10.1016/j.nima.2011.05.065

Author

Filliatre, Philippe ; Vermeeren, Ludo ; Jammes, Christian ; Geslot, Benoit ; Fourmentel, Damien ; Wéber, Marcel. / Estimating the gamma-ray contribution to the signal of fission chambers with Monte Carlo simulations. In: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 2011 ; Vol. 648, No. 1. pp. 228-237.

Bibtex - Download

@article{091bfa5fc9924f1788dfd5f833ec59ea,
title = "Estimating the gamma-ray contribution to the signal of fission chambers with Monte Carlo simulations",
abstract = "The fission chambers that provide in-core measurements of the neutron flux in nuclear reactors are also sensitive to the gamma-ray flux. According to experimental data, this contribution can be dominant in current mode. We present a calculation route, relying on a description of the physical phenomena, that compute the gamma-ray signal in a fission chamber, coming directly from the gamma-ray flux, and indirectly from the neutron flux and activated structures. We use it in a working example for which we show that the main contribution of the gamma-ray flux to the signal comes from the interaction of the gamma-rays with the electrodes. The relative contribution of gammas created by neutron interactions in the detector is small. The comparison of this example with experimental results yields a good qualitative agreement: the gamma-ray signal may dominate in current mode, but is effectively suppressed in fluctuation mode. This calculation route will be useful for the design of fission chambers to be operated under high neutron and gamma-ray flux.",
keywords = "fission chamber, gamma, modeling",
author = "Philippe Filliatre and Ludo Vermeeren and Christian Jammes and Benoit Geslot and Damien Fourmentel and Marcel W{\'e}ber",
note = "Score = 10",
year = "2011",
month = jun,
day = "2",
doi = "10.1016/j.nima.2011.05.065",
language = "English",
volume = "648",
pages = "228--237",
journal = "Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment",
issn = "0168-9002",
publisher = "Elsevier",
number = "1",

}

RIS - Download

TY - JOUR

T1 - Estimating the gamma-ray contribution to the signal of fission chambers with Monte Carlo simulations

AU - Filliatre, Philippe

AU - Vermeeren, Ludo

AU - Jammes, Christian

AU - Geslot, Benoit

AU - Fourmentel, Damien

A2 - Wéber, Marcel

N1 - Score = 10

PY - 2011/6/2

Y1 - 2011/6/2

N2 - The fission chambers that provide in-core measurements of the neutron flux in nuclear reactors are also sensitive to the gamma-ray flux. According to experimental data, this contribution can be dominant in current mode. We present a calculation route, relying on a description of the physical phenomena, that compute the gamma-ray signal in a fission chamber, coming directly from the gamma-ray flux, and indirectly from the neutron flux and activated structures. We use it in a working example for which we show that the main contribution of the gamma-ray flux to the signal comes from the interaction of the gamma-rays with the electrodes. The relative contribution of gammas created by neutron interactions in the detector is small. The comparison of this example with experimental results yields a good qualitative agreement: the gamma-ray signal may dominate in current mode, but is effectively suppressed in fluctuation mode. This calculation route will be useful for the design of fission chambers to be operated under high neutron and gamma-ray flux.

AB - The fission chambers that provide in-core measurements of the neutron flux in nuclear reactors are also sensitive to the gamma-ray flux. According to experimental data, this contribution can be dominant in current mode. We present a calculation route, relying on a description of the physical phenomena, that compute the gamma-ray signal in a fission chamber, coming directly from the gamma-ray flux, and indirectly from the neutron flux and activated structures. We use it in a working example for which we show that the main contribution of the gamma-ray flux to the signal comes from the interaction of the gamma-rays with the electrodes. The relative contribution of gammas created by neutron interactions in the detector is small. The comparison of this example with experimental results yields a good qualitative agreement: the gamma-ray signal may dominate in current mode, but is effectively suppressed in fluctuation mode. This calculation route will be useful for the design of fission chambers to be operated under high neutron and gamma-ray flux.

KW - fission chamber

KW - gamma

KW - modeling

UR - http://ecm.sckcen.be/OTCS/llisapi.dll/open/ezp_115726

UR - http://knowledgecentre.sckcen.be/so2/bibref/8281

U2 - 10.1016/j.nima.2011.05.065

DO - 10.1016/j.nima.2011.05.065

M3 - Article

VL - 648

SP - 228

EP - 237

JO - Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

JF - Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

SN - 0168-9002

IS - 1

ER -

ID: 304995