Reasons why Plutonium 242 is the best fission chamber deposit to monitor the fast component of a high neutron flux

Philippe Filliatre; Ludovic Oriol; Christian Jammes; Ludo Vermeeren; Marcel Wéber

doi:10.1016/j.nima.2008.05.049

Reasons why Plutonium 242 is the best fission chamber deposit to monitor the fast component of a high neutron flux

Philippe Filliatre, Ludovic Oriol, Christian Jammes, Ludo Vermeeren, Marcel Wéber

Research output › peer-review

Abstract

The FNDS project aims at developing fission chambers to measure on-line the fast component of a high neutron flux (≈1014 ncm-2s-1 or more) with a significant thermal component. We identify with simulations the deposits of fission chambers that are best suited to this goal. We address the question of the evolution of the deposit by radiative capture and decay. A deposit of 242Pu appears as the best choice, with a high initial sensitivity to fast neutrons only slowly degrading under irradiation. The effect of unavoidable impurities was assessed: small concentrations of 241Pu and 243Pu can be tolerated.

Original language	English
Pages (from-to)	510-518
Journal	Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume	593
Issue number	3
DOIs	https://doi.org/10.1016/j.nima.2008.05.049
State	Published - 11 Aug 2008

Access to Document

10.1016/j.nima.2008.05.049License: Other

Cite this

Filliatre, P., Oriol, L., Jammes, C., Vermeeren, L., & Wéber, M. (2008). Reasons why Plutonium 242 is the best fission chamber deposit to monitor the fast component of a high neutron flux. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 593(3), 510-518. https://doi.org/10.1016/j.nima.2008.05.049

@article{60654ff26e4448aeb1af45bd3fa46e7e,

title = "Reasons why Plutonium 242 is the best fission chamber deposit to monitor the fast component of a high neutron flux",

abstract = "The FNDS project aims at developing fission chambers to measure on-line the fast component of a high neutron flux (≈1014 ncm-2s-1 or more) with a significant thermal component. We identify with simulations the deposits of fission chambers that are best suited to this goal. We address the question of the evolution of the deposit by radiative capture and decay. A deposit of 242Pu appears as the best choice, with a high initial sensitivity to fast neutrons only slowly degrading under irradiation. The effect of unavoidable impurities was assessed: small concentrations of 241Pu and 243Pu can be tolerated.",

keywords = "fission chambers, fast neutron flux, simulation",

author = "Philippe Filliatre and Ludovic Oriol and Christian Jammes and Ludo Vermeeren and Marcel W{\'e}ber",

note = "Score = 10",

year = "2008",

month = aug,

day = "11",

doi = "10.1016/j.nima.2008.05.049",

language = "English",

volume = "593",

pages = "510--518",

journal = "Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment",

issn = "0168-9002",

publisher = "Elsevier",

number = "3",

}

Filliatre, P, Oriol, L, Jammes, C, Vermeeren, L & Wéber, M 2008, 'Reasons why Plutonium 242 is the best fission chamber deposit to monitor the fast component of a high neutron flux', Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, vol. 593, no. 3, pp. 510-518. https://doi.org/10.1016/j.nima.2008.05.049

Reasons why Plutonium 242 is the best fission chamber deposit to monitor the fast component of a high neutron flux. / Filliatre, Philippe; Oriol, Ludovic; Jammes, Christian et al.
In: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 593, No. 3, 11.08.2008, p. 510-518.

Research output › peer-review

TY - JOUR

T1 - Reasons why Plutonium 242 is the best fission chamber deposit to monitor the fast component of a high neutron flux

AU - Filliatre, Philippe

AU - Oriol, Ludovic

AU - Jammes, Christian

AU - Vermeeren, Ludo

A2 - Wéber, Marcel

N1 - Score = 10

PY - 2008/8/11

Y1 - 2008/8/11

N2 - The FNDS project aims at developing fission chambers to measure on-line the fast component of a high neutron flux (≈1014 ncm-2s-1 or more) with a significant thermal component. We identify with simulations the deposits of fission chambers that are best suited to this goal. We address the question of the evolution of the deposit by radiative capture and decay. A deposit of 242Pu appears as the best choice, with a high initial sensitivity to fast neutrons only slowly degrading under irradiation. The effect of unavoidable impurities was assessed: small concentrations of 241Pu and 243Pu can be tolerated.

AB - The FNDS project aims at developing fission chambers to measure on-line the fast component of a high neutron flux (≈1014 ncm-2s-1 or more) with a significant thermal component. We identify with simulations the deposits of fission chambers that are best suited to this goal. We address the question of the evolution of the deposit by radiative capture and decay. A deposit of 242Pu appears as the best choice, with a high initial sensitivity to fast neutrons only slowly degrading under irradiation. The effect of unavoidable impurities was assessed: small concentrations of 241Pu and 243Pu can be tolerated.

KW - fission chambers

KW - fast neutron flux

KW - simulation

UR - http://ecm.sckcen.be/OTCS/llisapi.dll/open/ezp_90242

UR - http://knowledgecentre.sckcen.be/so2/bibref/5062

U2 - 10.1016/j.nima.2008.05.049

DO - 10.1016/j.nima.2008.05.049

M3 - Article

SN - 0168-9002

VL - 593

SP - 510

EP - 518

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

IS - 3

ER -