EXTENDED MSM METHOD TO ESTIMATE THE REACTIVITY OF A SUB-CRITICAL CORE DRIVEN BY AN ACCELERATOR BASED NEUTRON SOURCE

The Modified Source Multiplication method is used to determine an unknown reactivity level of a reactor from a known one if one has access to the detector counting for both levels when the reactor is fed by a constant neutron source like an Am-Be source. When available, an accelerator driven source,...
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Autor*in:	Billebaud A. [verfasserIn] Lecouey J.-L. [verfasserIn] Chevret T. [verfasserIn] Chabod S. [verfasserIn] Doligez X. [verfasserIn] Kochetkov A. [verfasserIn] Krása A. [verfasserIn] Lecolley F.-R. [verfasserIn] Lehaut G. [verfasserIn] Marie N. [verfasserIn] Messaoudi N. [verfasserIn] Uyttenhove W. [verfasserIn] Vittiglio G. [verfasserIn] Wagemans J. [verfasserIn] Bécares V. [verfasserIn] Villamarin D. [verfasserIn] Mellier F. [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2021

Schlagwörter:	ads accelerator based neutron source msm method reactivity monitoring

Übergeordnetes Werk:	In: EPJ Web of Conferences - EDP Sciences, 2010, 247, p 08005(2021)
Übergeordnetes Werk:	volume:247, p 08005 ; year:2021

Links:	Link aufrufen Link aufrufen Link aufrufen Journal toc

DOI / URN:	10.1051/epjconf/202124708005

Katalog-ID:	DOAJ055688764

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allfields	10.1051/epjconf/202124708005 doi (DE-627)DOAJ055688764 (DE-599)DOAJc302bdf552de47eb94580f3045887920 DE-627 ger DE-627 rakwb eng QC1-999 Billebaud A. verfasserin aut EXTENDED MSM METHOD TO ESTIMATE THE REACTIVITY OF A SUB-CRITICAL CORE DRIVEN BY AN ACCELERATOR BASED NEUTRON SOURCE 2021 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The Modified Source Multiplication method is used to determine an unknown reactivity level of a reactor from a known one if one has access to the detector counting for both levels when the reactor is fed by a constant neutron source like an Am-Be source. When available, an accelerator driven source, in continuous mode, can be useful as its intensity can be tunable and then adapted to the experimental conditions. However, in that case, the MSM technique must be extended to account for an external source whose intensity, energy and angular distributions can vary from one measurement to another. In this paper, this Modified Multi-Source Multiplication (MMSM) method is applied to measurements done during the FREYA project in the GUINEVERE facility, operated with the GENEPI-3C accelerator providing a mixture of (D,T) and (D,D) neutrons. The monitoring of these sources through the detection of the associated charged particles allows the calculation of the MMSM factors and the estimate of the reactivity values. The results are compared in different configurations with the reactivity obtained with an Am-Be source or in dynamic measurements performed with GENEPI-3C. Their excellent agreement shows the possibility of using such accelerator-based neutron sources for MSM measurements when they are correctly monitored. This is of great interest for deep sub-critical level characterization for which detector count rates per source neutrons might be low. ads accelerator based neutron source msm method reactivity monitoring Physics Lecouey J.-L. verfasserin aut Chevret T. verfasserin aut Chabod S. verfasserin aut Doligez X. verfasserin aut Kochetkov A. verfasserin aut Krása A. verfasserin aut Lecolley F.-R. verfasserin aut Lehaut G. verfasserin aut Marie N. verfasserin aut Messaoudi N. verfasserin aut Uyttenhove W. verfasserin aut Vittiglio G. verfasserin aut Wagemans J. verfasserin aut Bécares V. verfasserin aut Villamarin D. verfasserin aut Mellier F. verfasserin aut In EPJ Web of Conferences EDP Sciences, 2010 247, p 08005(2021) (DE-627)647306611 (DE-600)2595425-8 2100014X nnns volume:247, p 08005 year:2021 https://doi.org/10.1051/epjconf/202124708005 kostenfrei https://doaj.org/article/c302bdf552de47eb94580f3045887920 kostenfrei https://www.epj-conferences.org/articles/epjconf/pdf/2021/01/epjconf_physor2020_08005.pdf kostenfrei https://doaj.org/toc/2100-014X Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2005 GBV_ILN_2009 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_2111 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 247, p 08005 2021
spelling	10.1051/epjconf/202124708005 doi (DE-627)DOAJ055688764 (DE-599)DOAJc302bdf552de47eb94580f3045887920 DE-627 ger DE-627 rakwb eng QC1-999 Billebaud A. verfasserin aut EXTENDED MSM METHOD TO ESTIMATE THE REACTIVITY OF A SUB-CRITICAL CORE DRIVEN BY AN ACCELERATOR BASED NEUTRON SOURCE 2021 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The Modified Source Multiplication method is used to determine an unknown reactivity level of a reactor from a known one if one has access to the detector counting for both levels when the reactor is fed by a constant neutron source like an Am-Be source. When available, an accelerator driven source, in continuous mode, can be useful as its intensity can be tunable and then adapted to the experimental conditions. However, in that case, the MSM technique must be extended to account for an external source whose intensity, energy and angular distributions can vary from one measurement to another. In this paper, this Modified Multi-Source Multiplication (MMSM) method is applied to measurements done during the FREYA project in the GUINEVERE facility, operated with the GENEPI-3C accelerator providing a mixture of (D,T) and (D,D) neutrons. The monitoring of these sources through the detection of the associated charged particles allows the calculation of the MMSM factors and the estimate of the reactivity values. The results are compared in different configurations with the reactivity obtained with an Am-Be source or in dynamic measurements performed with GENEPI-3C. Their excellent agreement shows the possibility of using such accelerator-based neutron sources for MSM measurements when they are correctly monitored. This is of great interest for deep sub-critical level characterization for which detector count rates per source neutrons might be low. ads accelerator based neutron source msm method reactivity monitoring Physics Lecouey J.-L. verfasserin aut Chevret T. verfasserin aut Chabod S. verfasserin aut Doligez X. verfasserin aut Kochetkov A. verfasserin aut Krása A. verfasserin aut Lecolley F.-R. verfasserin aut Lehaut G. verfasserin aut Marie N. verfasserin aut Messaoudi N. verfasserin aut Uyttenhove W. verfasserin aut Vittiglio G. verfasserin aut Wagemans J. verfasserin aut Bécares V. verfasserin aut Villamarin D. verfasserin aut Mellier F. verfasserin aut In EPJ Web of Conferences EDP Sciences, 2010 247, p 08005(2021) (DE-627)647306611 (DE-600)2595425-8 2100014X nnns volume:247, p 08005 year:2021 https://doi.org/10.1051/epjconf/202124708005 kostenfrei https://doaj.org/article/c302bdf552de47eb94580f3045887920 kostenfrei https://www.epj-conferences.org/articles/epjconf/pdf/2021/01/epjconf_physor2020_08005.pdf kostenfrei https://doaj.org/toc/2100-014X Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2005 GBV_ILN_2009 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_2111 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 247, p 08005 2021
allfields_unstemmed	10.1051/epjconf/202124708005 doi (DE-627)DOAJ055688764 (DE-599)DOAJc302bdf552de47eb94580f3045887920 DE-627 ger DE-627 rakwb eng QC1-999 Billebaud A. verfasserin aut EXTENDED MSM METHOD TO ESTIMATE THE REACTIVITY OF A SUB-CRITICAL CORE DRIVEN BY AN ACCELERATOR BASED NEUTRON SOURCE 2021 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The Modified Source Multiplication method is used to determine an unknown reactivity level of a reactor from a known one if one has access to the detector counting for both levels when the reactor is fed by a constant neutron source like an Am-Be source. When available, an accelerator driven source, in continuous mode, can be useful as its intensity can be tunable and then adapted to the experimental conditions. However, in that case, the MSM technique must be extended to account for an external source whose intensity, energy and angular distributions can vary from one measurement to another. In this paper, this Modified Multi-Source Multiplication (MMSM) method is applied to measurements done during the FREYA project in the GUINEVERE facility, operated with the GENEPI-3C accelerator providing a mixture of (D,T) and (D,D) neutrons. The monitoring of these sources through the detection of the associated charged particles allows the calculation of the MMSM factors and the estimate of the reactivity values. The results are compared in different configurations with the reactivity obtained with an Am-Be source or in dynamic measurements performed with GENEPI-3C. Their excellent agreement shows the possibility of using such accelerator-based neutron sources for MSM measurements when they are correctly monitored. This is of great interest for deep sub-critical level characterization for which detector count rates per source neutrons might be low. ads accelerator based neutron source msm method reactivity monitoring Physics Lecouey J.-L. verfasserin aut Chevret T. verfasserin aut Chabod S. verfasserin aut Doligez X. verfasserin aut Kochetkov A. verfasserin aut Krása A. verfasserin aut Lecolley F.-R. verfasserin aut Lehaut G. verfasserin aut Marie N. verfasserin aut Messaoudi N. verfasserin aut Uyttenhove W. verfasserin aut Vittiglio G. verfasserin aut Wagemans J. verfasserin aut Bécares V. verfasserin aut Villamarin D. verfasserin aut Mellier F. verfasserin aut In EPJ Web of Conferences EDP Sciences, 2010 247, p 08005(2021) (DE-627)647306611 (DE-600)2595425-8 2100014X nnns volume:247, p 08005 year:2021 https://doi.org/10.1051/epjconf/202124708005 kostenfrei https://doaj.org/article/c302bdf552de47eb94580f3045887920 kostenfrei https://www.epj-conferences.org/articles/epjconf/pdf/2021/01/epjconf_physor2020_08005.pdf kostenfrei https://doaj.org/toc/2100-014X Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2005 GBV_ILN_2009 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_2111 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 247, p 08005 2021
allfieldsGer	10.1051/epjconf/202124708005 doi (DE-627)DOAJ055688764 (DE-599)DOAJc302bdf552de47eb94580f3045887920 DE-627 ger DE-627 rakwb eng QC1-999 Billebaud A. verfasserin aut EXTENDED MSM METHOD TO ESTIMATE THE REACTIVITY OF A SUB-CRITICAL CORE DRIVEN BY AN ACCELERATOR BASED NEUTRON SOURCE 2021 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The Modified Source Multiplication method is used to determine an unknown reactivity level of a reactor from a known one if one has access to the detector counting for both levels when the reactor is fed by a constant neutron source like an Am-Be source. When available, an accelerator driven source, in continuous mode, can be useful as its intensity can be tunable and then adapted to the experimental conditions. However, in that case, the MSM technique must be extended to account for an external source whose intensity, energy and angular distributions can vary from one measurement to another. In this paper, this Modified Multi-Source Multiplication (MMSM) method is applied to measurements done during the FREYA project in the GUINEVERE facility, operated with the GENEPI-3C accelerator providing a mixture of (D,T) and (D,D) neutrons. The monitoring of these sources through the detection of the associated charged particles allows the calculation of the MMSM factors and the estimate of the reactivity values. The results are compared in different configurations with the reactivity obtained with an Am-Be source or in dynamic measurements performed with GENEPI-3C. Their excellent agreement shows the possibility of using such accelerator-based neutron sources for MSM measurements when they are correctly monitored. This is of great interest for deep sub-critical level characterization for which detector count rates per source neutrons might be low. ads accelerator based neutron source msm method reactivity monitoring Physics Lecouey J.-L. verfasserin aut Chevret T. verfasserin aut Chabod S. verfasserin aut Doligez X. verfasserin aut Kochetkov A. verfasserin aut Krása A. verfasserin aut Lecolley F.-R. verfasserin aut Lehaut G. verfasserin aut Marie N. verfasserin aut Messaoudi N. verfasserin aut Uyttenhove W. verfasserin aut Vittiglio G. verfasserin aut Wagemans J. verfasserin aut Bécares V. verfasserin aut Villamarin D. verfasserin aut Mellier F. verfasserin aut In EPJ Web of Conferences EDP Sciences, 2010 247, p 08005(2021) (DE-627)647306611 (DE-600)2595425-8 2100014X nnns volume:247, p 08005 year:2021 https://doi.org/10.1051/epjconf/202124708005 kostenfrei https://doaj.org/article/c302bdf552de47eb94580f3045887920 kostenfrei https://www.epj-conferences.org/articles/epjconf/pdf/2021/01/epjconf_physor2020_08005.pdf kostenfrei https://doaj.org/toc/2100-014X Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2005 GBV_ILN_2009 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_2111 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 247, p 08005 2021
allfieldsSound	10.1051/epjconf/202124708005 doi (DE-627)DOAJ055688764 (DE-599)DOAJc302bdf552de47eb94580f3045887920 DE-627 ger DE-627 rakwb eng QC1-999 Billebaud A. verfasserin aut EXTENDED MSM METHOD TO ESTIMATE THE REACTIVITY OF A SUB-CRITICAL CORE DRIVEN BY AN ACCELERATOR BASED NEUTRON SOURCE 2021 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The Modified Source Multiplication method is used to determine an unknown reactivity level of a reactor from a known one if one has access to the detector counting for both levels when the reactor is fed by a constant neutron source like an Am-Be source. When available, an accelerator driven source, in continuous mode, can be useful as its intensity can be tunable and then adapted to the experimental conditions. However, in that case, the MSM technique must be extended to account for an external source whose intensity, energy and angular distributions can vary from one measurement to another. In this paper, this Modified Multi-Source Multiplication (MMSM) method is applied to measurements done during the FREYA project in the GUINEVERE facility, operated with the GENEPI-3C accelerator providing a mixture of (D,T) and (D,D) neutrons. The monitoring of these sources through the detection of the associated charged particles allows the calculation of the MMSM factors and the estimate of the reactivity values. The results are compared in different configurations with the reactivity obtained with an Am-Be source or in dynamic measurements performed with GENEPI-3C. Their excellent agreement shows the possibility of using such accelerator-based neutron sources for MSM measurements when they are correctly monitored. This is of great interest for deep sub-critical level characterization for which detector count rates per source neutrons might be low. ads accelerator based neutron source msm method reactivity monitoring Physics Lecouey J.-L. verfasserin aut Chevret T. verfasserin aut Chabod S. verfasserin aut Doligez X. verfasserin aut Kochetkov A. verfasserin aut Krása A. verfasserin aut Lecolley F.-R. verfasserin aut Lehaut G. verfasserin aut Marie N. verfasserin aut Messaoudi N. verfasserin aut Uyttenhove W. verfasserin aut Vittiglio G. verfasserin aut Wagemans J. verfasserin aut Bécares V. verfasserin aut Villamarin D. verfasserin aut Mellier F. verfasserin aut In EPJ Web of Conferences EDP Sciences, 2010 247, p 08005(2021) (DE-627)647306611 (DE-600)2595425-8 2100014X nnns volume:247, p 08005 year:2021 https://doi.org/10.1051/epjconf/202124708005 kostenfrei https://doaj.org/article/c302bdf552de47eb94580f3045887920 kostenfrei https://www.epj-conferences.org/articles/epjconf/pdf/2021/01/epjconf_physor2020_08005.pdf kostenfrei https://doaj.org/toc/2100-014X Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2005 GBV_ILN_2009 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_2111 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 247, p 08005 2021
language	English
source	In EPJ Web of Conferences 247, p 08005(2021) volume:247, p 08005 year:2021
sourceStr	In EPJ Web of Conferences 247, p 08005(2021) volume:247, p 08005 year:2021
format_phy_str_mv	Article
institution	findex.gbv.de
topic_facet	ads accelerator based neutron source msm method reactivity monitoring Physics
isfreeaccess_bool	true
container_title	EPJ Web of Conferences
authorswithroles_txt_mv	Billebaud A. @@aut@@ Lecouey J.-L. @@aut@@ Chevret T. @@aut@@ Chabod S. @@aut@@ Doligez X. @@aut@@ Kochetkov A. @@aut@@ Krása A. @@aut@@ Lecolley F.-R. @@aut@@ Lehaut G. @@aut@@ Marie N. @@aut@@ Messaoudi N. @@aut@@ Uyttenhove W. @@aut@@ Vittiglio G. @@aut@@ Wagemans J. @@aut@@ Bécares V. @@aut@@ Villamarin D. @@aut@@ Mellier F. @@aut@@
publishDateDaySort_date	2021-01-01T00:00:00Z
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callnumber-first	Q - Science
author	Billebaud A.
spellingShingle	Billebaud A. misc QC1-999 misc ads misc accelerator based neutron source misc msm method misc reactivity monitoring misc Physics EXTENDED MSM METHOD TO ESTIMATE THE REACTIVITY OF A SUB-CRITICAL CORE DRIVEN BY AN ACCELERATOR BASED NEUTRON SOURCE
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topic_title	QC1-999 EXTENDED MSM METHOD TO ESTIMATE THE REACTIVITY OF A SUB-CRITICAL CORE DRIVEN BY AN ACCELERATOR BASED NEUTRON SOURCE ads accelerator based neutron source msm method reactivity monitoring
topic	misc QC1-999 misc ads misc accelerator based neutron source misc msm method misc reactivity monitoring misc Physics
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title	EXTENDED MSM METHOD TO ESTIMATE THE REACTIVITY OF A SUB-CRITICAL CORE DRIVEN BY AN ACCELERATOR BASED NEUTRON SOURCE
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title_full	EXTENDED MSM METHOD TO ESTIMATE THE REACTIVITY OF A SUB-CRITICAL CORE DRIVEN BY AN ACCELERATOR BASED NEUTRON SOURCE
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author_browse	Billebaud A. Lecouey J.-L. Chevret T. Chabod S. Doligez X. Kochetkov A. Krása A. Lecolley F.-R. Lehaut G. Marie N. Messaoudi N. Uyttenhove W. Vittiglio G. Wagemans J. Bécares V. Villamarin D. Mellier F.
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title_sort	extended msm method to estimate the reactivity of a sub-critical core driven by an accelerator based neutron source
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title_auth	EXTENDED MSM METHOD TO ESTIMATE THE REACTIVITY OF A SUB-CRITICAL CORE DRIVEN BY AN ACCELERATOR BASED NEUTRON SOURCE
abstract	The Modified Source Multiplication method is used to determine an unknown reactivity level of a reactor from a known one if one has access to the detector counting for both levels when the reactor is fed by a constant neutron source like an Am-Be source. When available, an accelerator driven source, in continuous mode, can be useful as its intensity can be tunable and then adapted to the experimental conditions. However, in that case, the MSM technique must be extended to account for an external source whose intensity, energy and angular distributions can vary from one measurement to another. In this paper, this Modified Multi-Source Multiplication (MMSM) method is applied to measurements done during the FREYA project in the GUINEVERE facility, operated with the GENEPI-3C accelerator providing a mixture of (D,T) and (D,D) neutrons. The monitoring of these sources through the detection of the associated charged particles allows the calculation of the MMSM factors and the estimate of the reactivity values. The results are compared in different configurations with the reactivity obtained with an Am-Be source or in dynamic measurements performed with GENEPI-3C. Their excellent agreement shows the possibility of using such accelerator-based neutron sources for MSM measurements when they are correctly monitored. This is of great interest for deep sub-critical level characterization for which detector count rates per source neutrons might be low.
abstractGer	The Modified Source Multiplication method is used to determine an unknown reactivity level of a reactor from a known one if one has access to the detector counting for both levels when the reactor is fed by a constant neutron source like an Am-Be source. When available, an accelerator driven source, in continuous mode, can be useful as its intensity can be tunable and then adapted to the experimental conditions. However, in that case, the MSM technique must be extended to account for an external source whose intensity, energy and angular distributions can vary from one measurement to another. In this paper, this Modified Multi-Source Multiplication (MMSM) method is applied to measurements done during the FREYA project in the GUINEVERE facility, operated with the GENEPI-3C accelerator providing a mixture of (D,T) and (D,D) neutrons. The monitoring of these sources through the detection of the associated charged particles allows the calculation of the MMSM factors and the estimate of the reactivity values. The results are compared in different configurations with the reactivity obtained with an Am-Be source or in dynamic measurements performed with GENEPI-3C. Their excellent agreement shows the possibility of using such accelerator-based neutron sources for MSM measurements when they are correctly monitored. This is of great interest for deep sub-critical level characterization for which detector count rates per source neutrons might be low.
abstract_unstemmed	The Modified Source Multiplication method is used to determine an unknown reactivity level of a reactor from a known one if one has access to the detector counting for both levels when the reactor is fed by a constant neutron source like an Am-Be source. When available, an accelerator driven source, in continuous mode, can be useful as its intensity can be tunable and then adapted to the experimental conditions. However, in that case, the MSM technique must be extended to account for an external source whose intensity, energy and angular distributions can vary from one measurement to another. In this paper, this Modified Multi-Source Multiplication (MMSM) method is applied to measurements done during the FREYA project in the GUINEVERE facility, operated with the GENEPI-3C accelerator providing a mixture of (D,T) and (D,D) neutrons. The monitoring of these sources through the detection of the associated charged particles allows the calculation of the MMSM factors and the estimate of the reactivity values. The results are compared in different configurations with the reactivity obtained with an Am-Be source or in dynamic measurements performed with GENEPI-3C. Their excellent agreement shows the possibility of using such accelerator-based neutron sources for MSM measurements when they are correctly monitored. This is of great interest for deep sub-critical level characterization for which detector count rates per source neutrons might be low.
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title_short	EXTENDED MSM METHOD TO ESTIMATE THE REACTIVITY OF A SUB-CRITICAL CORE DRIVEN BY AN ACCELERATOR BASED NEUTRON SOURCE
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score	7.399703

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