Simulations of RF current drive and interaction of alpha particles with waves in Tokamaks

Mikko Alava; Olgierd Dumbrajs; Jukka Heikkinen; Thorbjörn Hellsten; Seppo Karttunen; Taina Kurki-Suonio; Mervi Mantsinen; Timo Pättikangas; Rainer Salomaa; Seppo Sipilä

Simulations of RF current drive and interaction of alpha particles with waves in Tokamaks

Mikko Alava, Olgierd Dumbrajs, Jukka Heikkinen, Thorbjörn Hellsten, Seppo Karttunen, Taina Kurki-Suonio, Mervi Mantsinen, Timo Pättikangas, Rainer Salomaa, Seppo Sipilä

BA3602 Process concepts and modelling

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review

Abstract

The effect of the Alfven resonance on the power deposition in fast wave current drive scenarios of ITER and possible efficiency enhancement of lower hybrid (LH) current drive by alpha particles are investigated. The mode conversion from the fast wave to the slow wave is found to remain smaller than 20%. Monte Carlo simulations show that for ITER parameters the power transfer from the alpha particles to the LH wave can be 15% of the alpha power if the LH waves can penetrate to the flux surface ρ/α = 0.5.

Original language	English
Title of host publication	Plasma Physics and Controlled Nuclear Fusion Research 1994
Subtitle of host publication	Proceedings of an International Conference on Plasma Physics and Controlled Nuclear Fusion Research
Place of Publication	Vienna
Publisher	International Atomic Energy Agency IAEA
Pages	581-587
Volume	3
ISBN (Print)	92-0-103795-3
Publication status	Published - 1996
MoE publication type	A4 Article in a conference publication
Event	15th International Conference on Plasma Physics and Controlled Nuclear Fusion Research - Seville, Spain Duration: 26 Sep 1994 → 1 Oct 1994

Publication series

Series	IAEA Proceedings
Number	STI/PUB/948
ISSN	0074-1884

Conference

Conference	15th International Conference on Plasma Physics and Controlled Nuclear Fusion Research
Country	Spain
City	Seville
Period	26/09/94 → 1/10/94

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Alava, M., Dumbrajs, O., Heikkinen, J., Hellsten, T., Karttunen, S., Kurki-Suonio, T., Mantsinen, M., Pättikangas, T., Salomaa, R., & Sipilä, S. (1996). Simulations of RF current drive and interaction of alpha particles with waves in Tokamaks. In Plasma Physics and Controlled Nuclear Fusion Research 1994: Proceedings of an International Conference on Plasma Physics and Controlled Nuclear Fusion Research (Vol. 3, pp. 581-587). International Atomic Energy Agency IAEA. IAEA Proceedings, No. STI/PUB/948

Alava, Mikko ; Dumbrajs, Olgierd ; Heikkinen, Jukka ; Hellsten, Thorbjörn ; Karttunen, Seppo ; Kurki-Suonio, Taina ; Mantsinen, Mervi ; Pättikangas, Timo ; Salomaa, Rainer ; Sipilä, Seppo. / Simulations of RF current drive and interaction of alpha particles with waves in Tokamaks. Plasma Physics and Controlled Nuclear Fusion Research 1994: Proceedings of an International Conference on Plasma Physics and Controlled Nuclear Fusion Research. Vol. 3 Vienna : International Atomic Energy Agency IAEA, 1996. pp. 581-587 (IAEA Proceedings; No. STI/PUB/948).

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title = "Simulations of RF current drive and interaction of alpha particles with waves in Tokamaks",

abstract = "The effect of the Alfven resonance on the power deposition in fast wave current drive scenarios of ITER and possible efficiency enhancement of lower hybrid (LH) current drive by alpha particles are investigated. The mode conversion from the fast wave to the slow wave is found to remain smaller than 20%. Monte Carlo simulations show that for ITER parameters the power transfer from the alpha particles to the LH wave can be 15% of the alpha power if the LH waves can penetrate to the flux surface ρ/α = 0.5.",

author = "Mikko Alava and Olgierd Dumbrajs and Jukka Heikkinen and Thorbj{\"o}rn Hellsten and Seppo Karttunen and Taina Kurki-Suonio and Mervi Mantsinen and Timo P{\"a}ttikangas and Rainer Salomaa and Seppo Sipil{\"a}",

note = "Project code: ENE1604; 15th International Conference on Plasma Physics and Controlled Nuclear Fusion Research ; Conference date: 26-09-1994 Through 01-10-1994",

year = "1996",

language = "English",

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volume = "3",

series = "IAEA Proceedings",

publisher = "International Atomic Energy Agency IAEA",

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Alava, M, Dumbrajs, O, Heikkinen, J, Hellsten, T, Karttunen, S, Kurki-Suonio, T, Mantsinen, M, Pättikangas, T, Salomaa, R & Sipilä, S 1996, Simulations of RF current drive and interaction of alpha particles with waves in Tokamaks. in Plasma Physics and Controlled Nuclear Fusion Research 1994: Proceedings of an International Conference on Plasma Physics and Controlled Nuclear Fusion Research. vol. 3, International Atomic Energy Agency IAEA, Vienna, IAEA Proceedings, no. STI/PUB/948, pp. 581-587, 15th International Conference on Plasma Physics and Controlled Nuclear Fusion Research, Seville, Spain, 26/09/94.

Simulations of RF current drive and interaction of alpha particles with waves in Tokamaks. / Alava, Mikko; Dumbrajs, Olgierd; Heikkinen, Jukka; Hellsten, Thorbjörn; Karttunen, Seppo; Kurki-Suonio, Taina; Mantsinen, Mervi; Pättikangas, Timo; Salomaa, Rainer; Sipilä, Seppo.

Plasma Physics and Controlled Nuclear Fusion Research 1994: Proceedings of an International Conference on Plasma Physics and Controlled Nuclear Fusion Research. Vol. 3 Vienna : International Atomic Energy Agency IAEA, 1996. p. 581-587 (IAEA Proceedings; No. STI/PUB/948).

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review

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T1 - Simulations of RF current drive and interaction of alpha particles with waves in Tokamaks

AU - Alava, Mikko

AU - Dumbrajs, Olgierd

AU - Heikkinen, Jukka

AU - Hellsten, Thorbjörn

AU - Karttunen, Seppo

AU - Kurki-Suonio, Taina

AU - Mantsinen, Mervi

AU - Pättikangas, Timo

AU - Salomaa, Rainer

AU - Sipilä, Seppo

N1 - Project code: ENE1604

PY - 1996

Y1 - 1996

N2 - The effect of the Alfven resonance on the power deposition in fast wave current drive scenarios of ITER and possible efficiency enhancement of lower hybrid (LH) current drive by alpha particles are investigated. The mode conversion from the fast wave to the slow wave is found to remain smaller than 20%. Monte Carlo simulations show that for ITER parameters the power transfer from the alpha particles to the LH wave can be 15% of the alpha power if the LH waves can penetrate to the flux surface ρ/α = 0.5.

AB - The effect of the Alfven resonance on the power deposition in fast wave current drive scenarios of ITER and possible efficiency enhancement of lower hybrid (LH) current drive by alpha particles are investigated. The mode conversion from the fast wave to the slow wave is found to remain smaller than 20%. Monte Carlo simulations show that for ITER parameters the power transfer from the alpha particles to the LH wave can be 15% of the alpha power if the LH waves can penetrate to the flux surface ρ/α = 0.5.

UR - https://inis.iaea.org/collection/NCLCollectionStore/_Public/27/058/27058544.pdf?r=1

M3 - Conference article in proceedings

SN - 92-0-103795-3

VL - 3

T3 - IAEA Proceedings

SP - 581

EP - 587

BT - Plasma Physics and Controlled Nuclear Fusion Research 1994

PB - International Atomic Energy Agency IAEA

CY - Vienna

T2 - 15th International Conference on Plasma Physics and Controlled Nuclear Fusion Research

Y2 - 26 September 1994 through 1 October 1994

ER -

Alava M, Dumbrajs O, Heikkinen J, Hellsten T, Karttunen S, Kurki-Suonio T et al. Simulations of RF current drive and interaction of alpha particles with waves in Tokamaks. In Plasma Physics and Controlled Nuclear Fusion Research 1994: Proceedings of an International Conference on Plasma Physics and Controlled Nuclear Fusion Research. Vol. 3. Vienna: International Atomic Energy Agency IAEA. 1996. p. 581-587. (IAEA Proceedings; No. STI/PUB/948).