| Title: |
Validation of the BEAMS3D neutral beam deposition model on Wendelstein 7-X |
| Authors: |
Lazerson, Samuel A.; Ford, Oliver P.; Nuehrenberg, Carolin; Akaslompolo, Simppa; Poloskei, Peter Zs; MacHielsen, Mike; McNeely, Paul; Vanó, Lilla; Rust, Norbert; Bozhenkov, Sergey; Neelis, Tristan W.C.; Graves, Jonathan P.; Pfefferlé, David; Spanier, Annabelle; Hartmann, Dirk; Marushchenko, Nikolai; Turkin, Yuriy; Hirsch, Matthias; Chaudhary, Neha; Hoefel, Udo; Stange, Torsten; Weir, Gavin; Pablant, Novimir; Langenberg, Andreas; Traverso, Peter; Valson, Pranay; Knauer, Jens; Jakob Brunner, Kai; Pasch, Ekkehard; Beurskens, Marc; Damm, Hannes; Fuchert, Golo; Nelde, Philipp; Scott, Evan; Hergenhahn, Uwe; Pavone, Andrea; Rahbarnia, Kian; Andreeva, Tamara; Schilling, Jonathan; Brandt, Christian; Neuner, Ulrich; Thomsen, Henning; Jakubowski, Marcin; Ali, Adnan; Gao, Yu; Niemann, Holger; Puig Sitjes, Aleix; Koenig, Ralf; Wolf, Robert C. |
| Contributors: |
Department of Applied Physics; Max-Planck-Institut für Plasmaphysik; Eindhoven University of Technology; Swiss Federal Institute of Technology Lausanne; University of Western Australia; United States Department of Energy; Auburn University; University of Wisconsin-Madison; Aalto-yliopisto; Aalto University |
| Publisher Information: |
Institute of Physics Publishing |
| Publication Year: |
2020 |
| Collection: |
Aalto University Publication Archive (Aaltodoc) / Aalto-yliopiston julkaisuarkistoa |
| Subject Terms: |
BEAMS3D; fast ions; magnetic confnement; neutral beam; simulation; Stellarator; validation |
| Description: |
openaire: EC/H2020/633053/EU//EUROfusion ; 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. ; Peer reviewed |
| Document Type: |
article in journal/newspaper |
| Language: |
English |
| Relation: |
info:eu-repo/grantAgreement/EC/H2020/633053/EU//EUROfusion; Nuclear Fusion; Volume 60, issue 7; https://aaltodoc.aalto.fi/handle/123456789/46358 |
| DOI: |
10.1088/1741-4326/ab8e61 |
| Availability: |
https://aaltodoc.aalto.fi/handle/123456789/46358; https://doi.org/10.1088/1741-4326/ab8e61 |
| Rights: |
openAccess |
| Accession Number: |
edsbas.5601441F |
| Database: |
BASE |