A sensitivity analysis of numerical predictions for beryllium erosion and migration in ITER

J. Romazanov; S. Brezinsek; R. A. Pitts; A. Kirschner; A. Eksaeva; D. Borodin; E. Veshchev; V. S. Neverov; A. B. Kukushkin; A. G. Alekseev; Ch Linsmeier

doi:10.1016/j.nme.2021.100904

A sensitivity analysis of numerical predictions for beryllium erosion and migration in ITER

J. Romazanov, S. Brezinsek, R. A. Pitts, A. Kirschner, A. Eksaeva, D. Borodin, E. Veshchev, V. S. Neverov, A. B. Kukushkin, A. G. Alekseev, Ch Linsmeier

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Abstract

The present study addresses the uncertainties that affect the recently performed predictions of beryllium (Be) erosion and migration in ITER using the Monte-Carlo code ERO2.0. The focus of the study is a D–T baseline discharge with fusion power gain Q=10, scrape-off layer (SOL) input power P_SOL=100MW, toroidal plasma current I_p=15MA, and central toroidal field B_t=5.3T. The parameter studies used to investigate uncertainties include variations of the radial extrapolation of plasma parameters in the far-SOL (scan A), the assumptions on impact angle distributions (scan B) and the anomalous transport of eroded Be (scan C). Variations by factors ∼3, ∼18 and ∼2 for scans A, B and C, respectively, are found.

Original language	English
Article number	100904
Journal	Nuclear Materials and Energy
Volume	26
DOIs	https://doi.org/10.1016/j.nme.2021.100904
State	Published - Mar 2021
Externally published	Yes

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Publisher Copyright:
© 2021 The Authors

Keywords

Beryllium
ERO2.0
Erosion
ITER
Migration

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10.1016/j.nme.2021.100904

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title = "A sensitivity analysis of numerical predictions for beryllium erosion and migration in ITER",

abstract = "The present study addresses the uncertainties that affect the recently performed predictions of beryllium (Be) erosion and migration in ITER using the Monte-Carlo code ERO2.0. The focus of the study is a D–T baseline discharge with fusion power gain Q=10, scrape-off layer (SOL) input power PSOL=100MW, toroidal plasma current Ip=15MA, and central toroidal field Bt=5.3T. The parameter studies used to investigate uncertainties include variations of the radial extrapolation of plasma parameters in the far-SOL (scan A), the assumptions on impact angle distributions (scan B) and the anomalous transport of eroded Be (scan C). Variations by factors ∼3, ∼18 and ∼2 for scans A, B and C, respectively, are found.",

keywords = "Beryllium, ERO2.0, Erosion, ITER, Migration",

author = "J. Romazanov and S. Brezinsek and Pitts, {R. A.} and A. Kirschner and A. Eksaeva and D. Borodin and E. Veshchev and Neverov, {V. S.} and Kukushkin, {A. B.} and Alekseev, {A. G.} and Ch Linsmeier",

note = "Publisher Copyright: {\textcopyright} 2021 The Authors",

year = "2021",

month = mar,

doi = "10.1016/j.nme.2021.100904",

language = "אנגלית",

volume = "26",

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AU - Romazanov, J.

AU - Brezinsek, S.

AU - Pitts, R. A.

AU - Kirschner, A.

AU - Eksaeva, A.

AU - Borodin, D.

AU - Veshchev, E.

AU - Neverov, V. S.

AU - Kukushkin, A. B.

AU - Alekseev, A. G.

AU - Linsmeier, Ch

PY - 2021/3

Y1 - 2021/3

N2 - The present study addresses the uncertainties that affect the recently performed predictions of beryllium (Be) erosion and migration in ITER using the Monte-Carlo code ERO2.0. The focus of the study is a D–T baseline discharge with fusion power gain Q=10, scrape-off layer (SOL) input power PSOL=100MW, toroidal plasma current Ip=15MA, and central toroidal field Bt=5.3T. The parameter studies used to investigate uncertainties include variations of the radial extrapolation of plasma parameters in the far-SOL (scan A), the assumptions on impact angle distributions (scan B) and the anomalous transport of eroded Be (scan C). Variations by factors ∼3, ∼18 and ∼2 for scans A, B and C, respectively, are found.

AB - The present study addresses the uncertainties that affect the recently performed predictions of beryllium (Be) erosion and migration in ITER using the Monte-Carlo code ERO2.0. The focus of the study is a D–T baseline discharge with fusion power gain Q=10, scrape-off layer (SOL) input power PSOL=100MW, toroidal plasma current Ip=15MA, and central toroidal field Bt=5.3T. The parameter studies used to investigate uncertainties include variations of the radial extrapolation of plasma parameters in the far-SOL (scan A), the assumptions on impact angle distributions (scan B) and the anomalous transport of eroded Be (scan C). Variations by factors ∼3, ∼18 and ∼2 for scans A, B and C, respectively, are found.

KW - Beryllium

KW - ERO2.0

KW - Erosion

KW - ITER

KW - Migration

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SN - 2352-1791

VL - 26

JO - Nuclear Materials and Energy

JF - Nuclear Materials and Energy

M1 - 100904

ER -

A sensitivity analysis of numerical predictions for beryllium erosion and migration in ITER

Abstract

Bibliographical note

Keywords

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