Effect of plasma response on the fast ion losses due to ELM control coils in ITER

Jari Varje; Otto Asunta; Mario Cavinato; Mario Gagliardi; Eero Hirvijoki; Tuomas Koskela; Taina Kurki-Suonio; Yueqiang Liu; Vassili Parail; Gabriella Saibene; Seppo Sipilä; Antti Snicker; Konsta Särkimäki; Simppa Äkäslompolo

doi:10.1088/0029-5515/56/4/046014

Effect of plasma response on the fast ion losses due to ELM control coils in ITER

Jari Varje
, Otto Asunta
, Mario Cavinato
, Mario Gagliardi
, Eero Hirvijoki
, Tuomas Koskela
, Taina Kurki-Suonio
, Yueqiang Liu
, Vassili Parail
, Gabriella Saibene
, Seppo Sipilä
, Antti Snicker
, Konsta Särkimäki
, Simppa Äkäslompolo

Not published at VTT

Aalto University
Tokamak Energy Ltd
Fusion for Energy (F4E)
Chalmers University of Technology
Princeton University
Culham Science Centre
Max-Planck-Institut für Plasmaphysik (IPP)

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

43 Citations (Scopus)

Abstract

Mitigating edge localized modes (ELMs) with resonant magnetic perturbations (RMPs) can increase energetic particle losses and resulting wall loads, which have previously been studied in the vacuum approximation. This paper presents recent results of fusion alpha and NBI ion losses in the ITER baseline scenario modelled with the Monte Carlo orbit following code ASCOT in a realistic magnetic field including the effect of the plasma response. The response was found to reduce alpha particle losses but increase NBI losses, with up to 4.2% of the injected power being lost. Additionally, some of the load in the divertor was found to be shifted away from the target plates toward the divertor dome.

Original language	English
Article number	046014
Journal	Nuclear Fusion
Volume	56
Issue number	4
DOIs	https://doi.org/10.1088/0029-5515/56/4/046014
Publication status	Published - 23 Mar 2016
MoE publication type	A1 Journal article-refereed

Funding

This work was partially funded by Fusion For Energy Grant 379 and the Academy of Finland project No. 259675, and has also received funding from Tekes-the Finnish Funding Agency for Innovation under the FinnFusion Consortium. The work was carried out using the HELIOS supercomputer system at International Fusion Energy Research Centre, Aomori, Japan, under the Broader Approach collaboration between Euratom and Japan, implemented by Fusion for Energy and JAEA. The supercomputing resources of CSC-IT center for science were utilised in the studies. Some of the calculations were performed using computer resources within the Aalto University School of Science 'Science-IT' project. The work by Eero Hirvijoki was partially supported by the U.S. Department of Energy, Office of Sciences, and has been authored by Princeton University under Contract Number DE-AC02-09CH11466 with the U.S. Department of Energy.

UN SDGs

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

SDG 7 Affordable and Clean Energy

Keywords

edge localized modes
fast ions
ITER
plasma response

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10.1088/0029-5515/56/4/046014

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Varje, J., Asunta, O., Cavinato, M., Gagliardi, M., Hirvijoki, E., Koskela, T., Kurki-Suonio, T., Liu, Y., Parail, V., Saibene, G., Sipilä, S., Snicker, A., Särkimäki, K., & Äkäslompolo, S. (2016). Effect of plasma response on the fast ion losses due to ELM control coils in ITER. Nuclear Fusion, 56(4), Article 046014. https://doi.org/10.1088/0029-5515/56/4/046014

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abstract = "Mitigating edge localized modes (ELMs) with resonant magnetic perturbations (RMPs) can increase energetic particle losses and resulting wall loads, which have previously been studied in the vacuum approximation. This paper presents recent results of fusion alpha and NBI ion losses in the ITER baseline scenario modelled with the Monte Carlo orbit following code ASCOT in a realistic magnetic field including the effect of the plasma response. The response was found to reduce alpha particle losses but increase NBI losses, with up to 4.2\% of the injected power being lost. Additionally, some of the load in the divertor was found to be shifted away from the target plates toward the divertor dome.",

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AU - Gagliardi, Mario

AU - Hirvijoki, Eero

AU - Koskela, Tuomas

AU - Kurki-Suonio, Taina

AU - Liu, Yueqiang

AU - Parail, Vassili

AU - Saibene, Gabriella

AU - Sipilä, Seppo

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AU - Särkimäki, Konsta

AU - Äkäslompolo, Simppa

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AB - Mitigating edge localized modes (ELMs) with resonant magnetic perturbations (RMPs) can increase energetic particle losses and resulting wall loads, which have previously been studied in the vacuum approximation. This paper presents recent results of fusion alpha and NBI ion losses in the ITER baseline scenario modelled with the Monte Carlo orbit following code ASCOT in a realistic magnetic field including the effect of the plasma response. The response was found to reduce alpha particle losses but increase NBI losses, with up to 4.2% of the injected power being lost. Additionally, some of the load in the divertor was found to be shifted away from the target plates toward the divertor dome.

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KW - fast ions

KW - ITER

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Effect of plasma response on the fast ion losses due to ELM control coils in ITER

Abstract

Funding

UN SDGs

Keywords

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