Abstract
The purpose of the MUSE (MUltiplication avec Source Externe) experimental programme is to investigate the neutronic properties of fast sub-critical cores coupled with known external sources of neutrons. Measurements of the MUSE-3 experiments (third phase of the MUSE program) included reactivity, U-235 fission rates across various traverses, absolute fission rates and dynamic measurements. Special care was taken in assessing the various sources of errors and uncertainties affecting the results when modelling and analysing MUSE-3 experiments with the ERANOS neutronic code system. Measured and calculated values agree well with each other (discrepancies within the uncertainty bars) except absolute fission rates which are affected by the large uncertainties associated with the inherent source (30 %) and with the strength of the fusion source (25%). However, such uncertainties do not contribute to the uncertainty in the importance of the source, {phi}{sup *}, which is linked to the ratio of the measured reaction rate with and without the fusion source (the generator being switched off and on). The analysis yielded therefore valuable results, in particular on the relative importance of the source from one configuration to another. The uncertainty in the calculated {phi}{sup *}, is of 1-2% (JEF2 and ERALIB1) for configurations without diffuser
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Aliberti, G;
Rimpault, G;
Jacqmin, R;
Lebrat, J F;
Chauvin, J P;
Granget, G;
[1]
Salvatores, M
[2]
- CEA Cadarache, Dept. d'Etudes des Reacteurs 13 - Saint Paul lez Durance (France)
- CEA Saclay, Dir. de l'Energie Nucleaire, 91 - Gif sur Yvette (France)
Citation Formats
Aliberti, G, Rimpault, G, Jacqmin, R, Lebrat, J F, Chauvin, J P, Granget, G, and Salvatores, M.
Analysis of the MUSE-3 subcritical experiment.
France: N. p.,
2001.
Web.
Aliberti, G, Rimpault, G, Jacqmin, R, Lebrat, J F, Chauvin, J P, Granget, G, & Salvatores, M.
Analysis of the MUSE-3 subcritical experiment.
France.
Aliberti, G, Rimpault, G, Jacqmin, R, Lebrat, J F, Chauvin, J P, Granget, G, and Salvatores, M.
2001.
"Analysis of the MUSE-3 subcritical experiment."
France.
@misc{etde_20267353,
title = {Analysis of the MUSE-3 subcritical experiment}
author = {Aliberti, G, Rimpault, G, Jacqmin, R, Lebrat, J F, Chauvin, J P, Granget, G, and Salvatores, M}
abstractNote = {The purpose of the MUSE (MUltiplication avec Source Externe) experimental programme is to investigate the neutronic properties of fast sub-critical cores coupled with known external sources of neutrons. Measurements of the MUSE-3 experiments (third phase of the MUSE program) included reactivity, U-235 fission rates across various traverses, absolute fission rates and dynamic measurements. Special care was taken in assessing the various sources of errors and uncertainties affecting the results when modelling and analysing MUSE-3 experiments with the ERANOS neutronic code system. Measured and calculated values agree well with each other (discrepancies within the uncertainty bars) except absolute fission rates which are affected by the large uncertainties associated with the inherent source (30 %) and with the strength of the fusion source (25%). However, such uncertainties do not contribute to the uncertainty in the importance of the source, {phi}{sup *}, which is linked to the ratio of the measured reaction rate with and without the fusion source (the generator being switched off and on). The analysis yielded therefore valuable results, in particular on the relative importance of the source from one configuration to another. The uncertainty in the calculated {phi}{sup *}, is of 1-2% (JEF2 and ERALIB1) for configurations without diffuser and 6% for the configuration with a Pb diffuser. There is therefore no bias in this important ADS characteristic as calculations lie within the measured error bars. From this analysis, it can be concluded that MUSE-3-type experiments are suitable for the assessment of tools used for designing ADS. (author)}
place = {France}
year = {2001}
month = {Jul}
}
title = {Analysis of the MUSE-3 subcritical experiment}
author = {Aliberti, G, Rimpault, G, Jacqmin, R, Lebrat, J F, Chauvin, J P, Granget, G, and Salvatores, M}
abstractNote = {The purpose of the MUSE (MUltiplication avec Source Externe) experimental programme is to investigate the neutronic properties of fast sub-critical cores coupled with known external sources of neutrons. Measurements of the MUSE-3 experiments (third phase of the MUSE program) included reactivity, U-235 fission rates across various traverses, absolute fission rates and dynamic measurements. Special care was taken in assessing the various sources of errors and uncertainties affecting the results when modelling and analysing MUSE-3 experiments with the ERANOS neutronic code system. Measured and calculated values agree well with each other (discrepancies within the uncertainty bars) except absolute fission rates which are affected by the large uncertainties associated with the inherent source (30 %) and with the strength of the fusion source (25%). However, such uncertainties do not contribute to the uncertainty in the importance of the source, {phi}{sup *}, which is linked to the ratio of the measured reaction rate with and without the fusion source (the generator being switched off and on). The analysis yielded therefore valuable results, in particular on the relative importance of the source from one configuration to another. The uncertainty in the calculated {phi}{sup *}, is of 1-2% (JEF2 and ERALIB1) for configurations without diffuser and 6% for the configuration with a Pb diffuser. There is therefore no bias in this important ADS characteristic as calculations lie within the measured error bars. From this analysis, it can be concluded that MUSE-3-type experiments are suitable for the assessment of tools used for designing ADS. (author)}
place = {France}
year = {2001}
month = {Jul}
}