Validation of BEAMS3D against fast-ion D-alpha measurements at ASDEX-Upgrade using FIDASIM
In this work, we describe validation efforts conducted for the stellarator Monte-Carlo neutral beam and fast ion code BEAMS3D. This code is used at Wendelstein 7-X to analyze fast ion physics and has numerous integrated interfaces facilitating a wide range of applications. We use experimental fast-i...
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| Format: | Article |
| Language: | English |
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IOP Publishing
2025-01-01
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| Series: | Nuclear Fusion |
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| Online Access: | https://doi.org/10.1088/1741-4326/adeda2 |
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| author | D. Kulla S. Lazerson A. Kappatou M. Weiland R.C. Wolf the ASDEX Upgrade Team |
| author_facet | D. Kulla S. Lazerson A. Kappatou M. Weiland R.C. Wolf the ASDEX Upgrade Team |
| author_sort | D. Kulla |
| collection | DOAJ |
| description | In this work, we describe validation efforts conducted for the stellarator Monte-Carlo neutral beam and fast ion code BEAMS3D. This code is used at Wendelstein 7-X to analyze fast ion physics and has numerous integrated interfaces facilitating a wide range of applications. We use experimental fast-ion D _α data from the ASDEX Upgrade tokamak, covering on- and off-axis neutral beam heating phases. We obtained synthetic D _α spectra using the FIDASIM code, leveraging a newly developed interface that allows a distribution function from BEAMS3D to be used. Comparing the simulated distributions from BEAMS3D and the well-established NUBEAM codes to the data shows that both codes reproduce the experiment equally well given the same initial conditions. The experimental FIDA spectra are quantitatively matched. The slowing down model of BEAMS3D is thus validated and can be applied to quantitative stellarator investigations in future studies. |
| format | Article |
| id | doaj-art-a959f0151afb4cdd953f2f182a1a9581 |
| institution | Kabale University |
| issn | 0029-5515 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | Nuclear Fusion |
| spelling | doaj-art-a959f0151afb4cdd953f2f182a1a95812025-08-20T03:32:54ZengIOP PublishingNuclear Fusion0029-55152025-01-0165808603210.1088/1741-4326/adeda2Validation of BEAMS3D against fast-ion D-alpha measurements at ASDEX-Upgrade using FIDASIMD. Kulla0https://orcid.org/0000-0003-1621-7338S. Lazerson1https://orcid.org/0000-0001-8002-0121A. Kappatou2https://orcid.org/0000-0003-3341-1909M. Weiland3https://orcid.org/0000-0002-5819-9724R.C. Wolf4https://orcid.org/0000-0002-2606-5289the ASDEX Upgrade TeamMax-Planck-Institut für Plasmaphysik Teilinstitut Greifswald , Wendelsteinstraße 1, Greifswald 17491, Germany; Max-Planck-Institut für Plasmaphysik , Boltzmannstraße 2, Garching bei München, Garching 85748, GermanyGauss Fusion GmbH , Garching bei München, Garching 85748, GermanyMax-Planck-Institut für Plasmaphysik , Boltzmannstraße 2, Garching bei München, Garching 85748, GermanyMax-Planck-Institut für Plasmaphysik , Boltzmannstraße 2, Garching bei München, Garching 85748, GermanyMax-Planck-Institut für Plasmaphysik Teilinstitut Greifswald , Wendelsteinstraße 1, Greifswald 17491, GermanyIn this work, we describe validation efforts conducted for the stellarator Monte-Carlo neutral beam and fast ion code BEAMS3D. This code is used at Wendelstein 7-X to analyze fast ion physics and has numerous integrated interfaces facilitating a wide range of applications. We use experimental fast-ion D _α data from the ASDEX Upgrade tokamak, covering on- and off-axis neutral beam heating phases. We obtained synthetic D _α spectra using the FIDASIM code, leveraging a newly developed interface that allows a distribution function from BEAMS3D to be used. Comparing the simulated distributions from BEAMS3D and the well-established NUBEAM codes to the data shows that both codes reproduce the experiment equally well given the same initial conditions. The experimental FIDA spectra are quantitatively matched. The slowing down model of BEAMS3D is thus validated and can be applied to quantitative stellarator investigations in future studies.https://doi.org/10.1088/1741-4326/adeda2fusionstellaratortokamakvalidationfast ionverification |
| spellingShingle | D. Kulla S. Lazerson A. Kappatou M. Weiland R.C. Wolf the ASDEX Upgrade Team Validation of BEAMS3D against fast-ion D-alpha measurements at ASDEX-Upgrade using FIDASIM Nuclear Fusion fusion stellarator tokamak validation fast ion verification |
| title | Validation of BEAMS3D against fast-ion D-alpha measurements at ASDEX-Upgrade using FIDASIM |
| title_full | Validation of BEAMS3D against fast-ion D-alpha measurements at ASDEX-Upgrade using FIDASIM |
| title_fullStr | Validation of BEAMS3D against fast-ion D-alpha measurements at ASDEX-Upgrade using FIDASIM |
| title_full_unstemmed | Validation of BEAMS3D against fast-ion D-alpha measurements at ASDEX-Upgrade using FIDASIM |
| title_short | Validation of BEAMS3D against fast-ion D-alpha measurements at ASDEX-Upgrade using FIDASIM |
| title_sort | validation of beams3d against fast ion d alpha measurements at asdex upgrade using fidasim |
| topic | fusion stellarator tokamak validation fast ion verification |
| url | https://doi.org/10.1088/1741-4326/adeda2 |
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