Monte Carlo based sensitivity and uncertainty analysis of the HCPB Test Blanket Module in ITER

U. Fischer; D. Leichtle; R. L. Perel

doi:10.1016/j.fusengdes.2008.06.053

Monte Carlo based sensitivity and uncertainty analysis of the HCPB Test Blanket Module in ITER

U. Fischer^*, D. Leichtle, R. L. Perel

^*Corresponding author for this work

Racah Institute of Physics

Research output: Contribution to journal › Article › peer-review

6 Scopus citations

Abstract

This paper presents the first real test application of the Monte Carlo based sensitivity and uncertainty computational approach to the Test Blanket Module (TBM) in ITER. To this end the standard three-dimensional MCNP model of ITER (20° torus sector) with integrated TBM of the Helium-cooled Pebble Bed (HCPB) type was employed. Sensitivity profiles and integrated sensitivities were calculated for the total tritium production in the HCPB TBM by using the track length estimator approach of MCSEN, a local extension to the Monte Carlo code MCNP. The associated uncertainties of the tritium production due to nuclear data uncertainties were assessed by making use of available co-variance data from different sources. The major contribution to the sensitivities was shown to come from the materials contained in the TBM, in particular the beryllium neutron multiplier and the breeder ceramics constituents ⁶Li and ¹⁶O. With the calculated sensitivity profiles and the available co-variance data, the cross-section induced uncertainties of the tritium production have been assessed at a level of 2.8%.

Original language	English
Pages (from-to)	1222-1226
Number of pages	5
Journal	Fusion Engineering and Design
Volume	83
Issue number	7-9
DOIs	https://doi.org/10.1016/j.fusengdes.2008.06.053
State	Published - Dec 2008

Bibliographical note

Funding Information:
This work, supported by the European Communities under the contract of Association between EURATOM and Forschungszentrum Karlsruhe, was carried out within the framework of the European Fusion Development Agreement. The views and opinions expressed therein do not necessarily reflect those of the European Commission. The authors would like to acknowledge the support of Dr. Ivo Kodeli for providing processed co-variance data.

Keywords

Fusion
ITER
Monte Carlo
Neutronics
Nuclear data
TBM
Uncertainty

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.fusengdes.2008.06.053

Cite this

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title = "Monte Carlo based sensitivity and uncertainty analysis of the HCPB Test Blanket Module in ITER",

abstract = "This paper presents the first real test application of the Monte Carlo based sensitivity and uncertainty computational approach to the Test Blanket Module (TBM) in ITER. To this end the standard three-dimensional MCNP model of ITER (20° torus sector) with integrated TBM of the Helium-cooled Pebble Bed (HCPB) type was employed. Sensitivity profiles and integrated sensitivities were calculated for the total tritium production in the HCPB TBM by using the track length estimator approach of MCSEN, a local extension to the Monte Carlo code MCNP. The associated uncertainties of the tritium production due to nuclear data uncertainties were assessed by making use of available co-variance data from different sources. The major contribution to the sensitivities was shown to come from the materials contained in the TBM, in particular the beryllium neutron multiplier and the breeder ceramics constituents 6Li and 16O. With the calculated sensitivity profiles and the available co-variance data, the cross-section induced uncertainties of the tritium production have been assessed at a level of 2.8%.",

keywords = "Fusion, ITER, Monte Carlo, Neutronics, Nuclear data, TBM, Uncertainty",

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note = "Funding Information: This work, supported by the European Communities under the contract of Association between EURATOM and Forschungszentrum Karlsruhe, was carried out within the framework of the European Fusion Development Agreement. The views and opinions expressed therein do not necessarily reflect those of the European Commission. The authors would like to acknowledge the support of Dr. Ivo Kodeli for providing processed co-variance data.",

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AU - Leichtle, D.

AU - Perel, R. L.

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N2 - This paper presents the first real test application of the Monte Carlo based sensitivity and uncertainty computational approach to the Test Blanket Module (TBM) in ITER. To this end the standard three-dimensional MCNP model of ITER (20° torus sector) with integrated TBM of the Helium-cooled Pebble Bed (HCPB) type was employed. Sensitivity profiles and integrated sensitivities were calculated for the total tritium production in the HCPB TBM by using the track length estimator approach of MCSEN, a local extension to the Monte Carlo code MCNP. The associated uncertainties of the tritium production due to nuclear data uncertainties were assessed by making use of available co-variance data from different sources. The major contribution to the sensitivities was shown to come from the materials contained in the TBM, in particular the beryllium neutron multiplier and the breeder ceramics constituents 6Li and 16O. With the calculated sensitivity profiles and the available co-variance data, the cross-section induced uncertainties of the tritium production have been assessed at a level of 2.8%.

AB - This paper presents the first real test application of the Monte Carlo based sensitivity and uncertainty computational approach to the Test Blanket Module (TBM) in ITER. To this end the standard three-dimensional MCNP model of ITER (20° torus sector) with integrated TBM of the Helium-cooled Pebble Bed (HCPB) type was employed. Sensitivity profiles and integrated sensitivities were calculated for the total tritium production in the HCPB TBM by using the track length estimator approach of MCSEN, a local extension to the Monte Carlo code MCNP. The associated uncertainties of the tritium production due to nuclear data uncertainties were assessed by making use of available co-variance data from different sources. The major contribution to the sensitivities was shown to come from the materials contained in the TBM, in particular the beryllium neutron multiplier and the breeder ceramics constituents 6Li and 16O. With the calculated sensitivity profiles and the available co-variance data, the cross-section induced uncertainties of the tritium production have been assessed at a level of 2.8%.

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KW - ITER

KW - Monte Carlo

KW - Neutronics

KW - Nuclear data

KW - TBM

KW - Uncertainty

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Monte Carlo based sensitivity and uncertainty analysis of the HCPB Test Blanket Module in ITER

Abstract

Bibliographical note

Keywords

UN SDGs

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