Validation of the BEAMS3D neutral beam deposition model on Wendelstein 7-X

Samuel A. Lazerson; Oliver P. Ford; Carolin Nuehrenberg; Simppa Akaslompolo; Simppa Akaslompolo; Peter Zs Poloskei; Mike MacHielsen; Paul McNeely; Lilla Vanó; Norbert Rust; Sergey Bozhenkov; Tristan W.C. Neelis; Jonathan P. Graves; David Pfefferlé; Annabelle Spanier; Dirk Hartmann; Nikolai Marushchenko; Yuriy Turkin; Matthias Hirsch; Neha Chaudhary; Udo Hoefel; Torsten Stange; Gavin Weir; Novimir Pablant; Andreas Langenberg; Peter Traverso; Pranay Valson; Jens Knauer; Kai Jakob Brunner; Ekkehard Pasch; Marc Beurskens; Hannes Damm; Golo Fuchert; Philipp Nelde; Evan Scott; Evan Scott; Uwe Hergenhahn; Andrea Pavone; Kian Rahbarnia; Tamara Andreeva; Jonathan Schilling; Christian Brandt; Ulrich Neuner; Henning Thomsen; Marcin Jakubowski; Adnan Ali; Yu Gao; Holger Niemann; Aleix Puig Sitjes; Ralf Koenig; Robert C. Wolf

doi:10.1088/1741-4326/ab8e61

Validation of the BEAMS3D neutral beam deposition model on Wendelstein 7-X

Samuel A. Lazerson
, Oliver P. Ford
, Carolin Nuehrenberg
, Simppa Akaslompolo
, Simppa Akaslompolo
, Peter Zs Poloskei
, Mike MacHielsen
, Paul McNeely
, Lilla Vanó
, Norbert Rust
, Sergey Bozhenkov
, Tristan W.C. Neelis
, Jonathan P. Graves
, David Pfefferlé
, Annabelle Spanier
, Dirk Hartmann
, Nikolai Marushchenko
, Yuriy Turkin
, Matthias Hirsch
, Neha Chaudhary

Udo Hoefel, Torsten Stange, Gavin Weir, Novimir Pablant, Andreas Langenberg, Peter Traverso, Pranay Valson, Jens Knauer, Kai Jakob Brunner, Ekkehard Pasch, Marc Beurskens, Hannes Damm, Golo Fuchert, Philipp Nelde, Evan Scott, Evan Scott, Uwe Hergenhahn, Andrea Pavone, Kian Rahbarnia, Tamara Andreeva, Jonathan Schilling, Christian Brandt, Ulrich Neuner, Henning Thomsen, Marcin Jakubowski, Adnan Ali, Yu Gao, Holger Niemann, Aleix Puig Sitjes, Ralf Koenig, Robert C. Wolf

PPPL Advanced Projects

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

30 Scopus citations

Abstract

The neutral beam deposition model in the BEAMS3D code is validated against neutral beam attenuation data from Wendelstein 7-X (W7-X). A set of experimental discharges where the neutral beam injection system of W7-X was utilized were reconstructed. These discharges scanned the magnetic configurations and plasma densities of W7-X. The equilibrium reconstructions were performed using STELLOPT which calculates three-dimensional self-consistent ideal magnetohydrodynamic equilibria and kinetic profiles. These reconstructions leveraged new capabilities to incorporate electron cyclotron emission and X-ray imaging diagnostics in the STELLOPT code. The reconstructed equilibria and profiles served as inputs for BEAMS3D calculations of neutral beam deposition in W7-X. It is found that if reconstructed kinetic profiles are utilized, good agreement between measured and simulated beam attenuation is found. As deposition models provide initial conditions for fast-ion slowing down calculations, this work provides a first step towards validating our ability to predict fast ion confinement in stellarators.

Original language	English (US)
Article number	076020
Journal	Nuclear Fusion
Volume	60
Issue number	7
DOIs	https://doi.org/10.1088/1741-4326/ab8e61
State	Published - Jul 2020

All Science Journal Classification (ASJC) codes

Nuclear and High Energy Physics
Condensed Matter Physics

Keywords

BEAMS3D
fast ions
magnetic confnement
neutral beam
simulation
Stellarator
validation

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10.1088/1741-4326/ab8e61

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Lazerson, S. A., Ford, O. P., Nuehrenberg, C., Akaslompolo, S., Akaslompolo, S., Poloskei, P. Z., MacHielsen, M., McNeely, P., Vanó, L., Rust, N., Bozhenkov, S., Neelis, T. W. C., Graves, J. P., Pfefferlé, D., Spanier, A., Hartmann, D., Marushchenko, N., Turkin, Y., Hirsch, M., ... Wolf, R. C. (2020). Validation of the BEAMS3D neutral beam deposition model on Wendelstein 7-X. Nuclear Fusion, 60(7), Article 076020. https://doi.org/10.1088/1741-4326/ab8e61

@article{65b0d4b3ec3c426fb03f0c6a08067fdd,

title = "Validation of the BEAMS3D neutral beam deposition model on Wendelstein 7-X",

abstract = "The neutral beam deposition model in the BEAMS3D code is validated against neutral beam attenuation data from Wendelstein 7-X (W7-X). A set of experimental discharges where the neutral beam injection system of W7-X was utilized were reconstructed. These discharges scanned the magnetic configurations and plasma densities of W7-X. The equilibrium reconstructions were performed using STELLOPT which calculates three-dimensional self-consistent ideal magnetohydrodynamic equilibria and kinetic profiles. These reconstructions leveraged new capabilities to incorporate electron cyclotron emission and X-ray imaging diagnostics in the STELLOPT code. The reconstructed equilibria and profiles served as inputs for BEAMS3D calculations of neutral beam deposition in W7-X. It is found that if reconstructed kinetic profiles are utilized, good agreement between measured and simulated beam attenuation is found. As deposition models provide initial conditions for fast-ion slowing down calculations, this work provides a first step towards validating our ability to predict fast ion confinement in stellarators.",

keywords = "BEAMS3D, fast ions, magnetic confnement, neutral beam, simulation, Stellarator, validation",

author = "Lazerson, \{Samuel A.\} and Ford, \{Oliver P.\} and Carolin Nuehrenberg and Simppa Akaslompolo and Simppa Akaslompolo and Poloskei, \{Peter Zs\} and Mike MacHielsen and Paul McNeely and Lilla Van{\'o} and Norbert Rust and Sergey Bozhenkov and Neelis, \{Tristan W.C.\} and Graves, \{Jonathan P.\} and David Pfefferl{\'e} and Annabelle Spanier and Dirk Hartmann and Nikolai Marushchenko and Yuriy Turkin and Matthias Hirsch and Neha Chaudhary and Udo Hoefel and Torsten Stange and Gavin Weir and Novimir Pablant and Andreas Langenberg and Peter Traverso and Pranay Valson and Jens Knauer and \{Jakob Brunner\}, Kai and Ekkehard Pasch and Marc Beurskens and Hannes Damm and Golo Fuchert and Philipp Nelde and Evan Scott and Evan Scott and Uwe Hergenhahn and Andrea Pavone and Kian Rahbarnia and Tamara Andreeva and Jonathan Schilling and Christian Brandt and Ulrich Neuner and Henning Thomsen and Marcin Jakubowski and Adnan Ali and Yu Gao and Holger Niemann and \{Puig Sitjes\}, Aleix and Ralf Koenig and Wolf, \{Robert C.\}",

note = "Publisher Copyright: {\textcopyright} 2020 EURATOM.",

year = "2020",

month = jul,

doi = "10.1088/1741-4326/ab8e61",

language = "English (US)",

volume = "60",

journal = "Nuclear Fusion",

issn = "0029-5515",

publisher = "IOP Publishing Ltd.",

number = "7",

}

Lazerson, SA, Ford, OP, Nuehrenberg, C, Akaslompolo, S, Akaslompolo, S, Poloskei, PZ, MacHielsen, M, McNeely, P, Vanó, L, Rust, N, Bozhenkov, S, Neelis, TWC, Graves, JP, Pfefferlé, D, Spanier, A, Hartmann, D, Marushchenko, N, Turkin, Y, Hirsch, M, Chaudhary, N, Hoefel, U, Stange, T, Weir, G, Pablant, N, Langenberg, A, Traverso, P, Valson, P, Knauer, J, Jakob Brunner, K, Pasch, E, Beurskens, M, Damm, H, Fuchert, G, Nelde, P, Scott, E, Scott, E, Hergenhahn, U, Pavone, A, Rahbarnia, K, Andreeva, T, Schilling, J, Brandt, C, Neuner, U, Thomsen, H, Jakubowski, M, Ali, A, Gao, Y, Niemann, H, Puig Sitjes, A, Koenig, R & Wolf, RC 2020, 'Validation of the BEAMS3D neutral beam deposition model on Wendelstein 7-X', Nuclear Fusion, vol. 60, no. 7, 076020. https://doi.org/10.1088/1741-4326/ab8e61

TY - JOUR

T1 - Validation of the BEAMS3D neutral beam deposition model on Wendelstein 7-X

AU - Lazerson, Samuel A.

AU - Ford, Oliver P.

AU - Nuehrenberg, Carolin

AU - Akaslompolo, Simppa

AU - Poloskei, Peter Zs

AU - MacHielsen, Mike

AU - McNeely, Paul

AU - Vanó, Lilla

AU - Rust, Norbert

AU - Bozhenkov, Sergey

AU - Neelis, Tristan W.C.

AU - Graves, Jonathan P.

AU - Pfefferlé, David

AU - Spanier, Annabelle

AU - Hartmann, Dirk

AU - Marushchenko, Nikolai

AU - Turkin, Yuriy

AU - Hirsch, Matthias

AU - Chaudhary, Neha

AU - Hoefel, Udo

AU - Stange, Torsten

AU - Weir, Gavin

AU - Pablant, Novimir

AU - Langenberg, Andreas

AU - Traverso, Peter

AU - Valson, Pranay

AU - Knauer, Jens

AU - Jakob Brunner, Kai

AU - Pasch, Ekkehard

AU - Beurskens, Marc

AU - Damm, Hannes

AU - Fuchert, Golo

AU - Nelde, Philipp

AU - Scott, Evan

AU - Hergenhahn, Uwe

AU - Pavone, Andrea

AU - Rahbarnia, Kian

AU - Andreeva, Tamara

AU - Schilling, Jonathan

AU - Brandt, Christian

AU - Neuner, Ulrich

AU - Thomsen, Henning

AU - Jakubowski, Marcin

AU - Ali, Adnan

AU - Gao, Yu

AU - Niemann, Holger

AU - Puig Sitjes, Aleix

AU - Koenig, Ralf

AU - Wolf, Robert C.

PY - 2020/7

Y1 - 2020/7

N2 - The neutral beam deposition model in the BEAMS3D code is validated against neutral beam attenuation data from Wendelstein 7-X (W7-X). A set of experimental discharges where the neutral beam injection system of W7-X was utilized were reconstructed. These discharges scanned the magnetic configurations and plasma densities of W7-X. The equilibrium reconstructions were performed using STELLOPT which calculates three-dimensional self-consistent ideal magnetohydrodynamic equilibria and kinetic profiles. These reconstructions leveraged new capabilities to incorporate electron cyclotron emission and X-ray imaging diagnostics in the STELLOPT code. The reconstructed equilibria and profiles served as inputs for BEAMS3D calculations of neutral beam deposition in W7-X. It is found that if reconstructed kinetic profiles are utilized, good agreement between measured and simulated beam attenuation is found. As deposition models provide initial conditions for fast-ion slowing down calculations, this work provides a first step towards validating our ability to predict fast ion confinement in stellarators.

AB - The neutral beam deposition model in the BEAMS3D code is validated against neutral beam attenuation data from Wendelstein 7-X (W7-X). A set of experimental discharges where the neutral beam injection system of W7-X was utilized were reconstructed. These discharges scanned the magnetic configurations and plasma densities of W7-X. The equilibrium reconstructions were performed using STELLOPT which calculates three-dimensional self-consistent ideal magnetohydrodynamic equilibria and kinetic profiles. These reconstructions leveraged new capabilities to incorporate electron cyclotron emission and X-ray imaging diagnostics in the STELLOPT code. The reconstructed equilibria and profiles served as inputs for BEAMS3D calculations of neutral beam deposition in W7-X. It is found that if reconstructed kinetic profiles are utilized, good agreement between measured and simulated beam attenuation is found. As deposition models provide initial conditions for fast-ion slowing down calculations, this work provides a first step towards validating our ability to predict fast ion confinement in stellarators.

KW - BEAMS3D

KW - fast ions

KW - magnetic confnement

KW - neutral beam

KW - simulation

KW - Stellarator

KW - validation

UR - https://www.scopus.com/pages/publications/85087109519

UR - https://www.scopus.com/pages/publications/85087109519#tab=citedBy

U2 - 10.1088/1741-4326/ab8e61

DO - 10.1088/1741-4326/ab8e61

M3 - Article

AN - SCOPUS:85087109519

SN - 0029-5515

VL - 60

JO - Nuclear Fusion

JF - Nuclear Fusion

IS - 7

M1 - 076020

ER -

Validation of the BEAMS3D neutral beam deposition model on Wendelstein 7-X

Abstract

All Science Journal Classification (ASJC) codes

Keywords

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