Published 2008 | Version v1
Report Metadata-only

Effect of magnetic field ripple on ECCD in Heliotron J

Creators

  • 1. Institute of Advanced Energy, Kyoto University, Uji (Japan)

Description

Electron cyclotron current drive (ECCD) experiment has been made in Heliotron J. A wide configuration scan shows that the EC driven current is strongly dependent on the magnetic ripple structure where the EC power is deposited. As the EC power is deposited on the deeper ripple bottom, the EC driven current flows in the direction determined by the Ohkawa effect, and the high energy tail is suppressed, indicating that the EC driven current is closely related to the population of trapped electrons. The dimensionless ECCD efficiency, ζ = e3neIECR/Ε02PECTe, is estimated by scanning the single pass EC absorbed power. (author)

Part of:
22. IAEA fusion energy conference: 'Celebrating fifty years of fusion... entering into the burning plasma era'. Book of abstracts

Additional details

Identifiers

URL
http://www-pub.iaea.org/MTCD/Meetings/PDFplus/2008/cn165/cn165_BookOfAbstracts.pdf;

Publishing Information

Imprint Title
22. IAEA fusion energy conference: 'Celebrating fifty years of fusion... entering into the burning plasma era'. Book of abstracts
Imprint Pagination
295 p.
Journal Page Range
p. 74
Report number
INIS-XA--08N0893

Conference

Title
22. IAEA fusion energy conference - 50th Anniversary Controlled Nuclear Fusion Research
Acronym
FEC 2008
Dates
13-18 Oct 2008
Place
Geneva (Switzerland)

INIS

Country of Publication
International Atomic Energy Agency (IAEA)
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
40004247
Subject category
S70: PLASMA PHYSICS AND FUSION TECHNOLOGY;
Resource subtype / Literary indicator
Conference
Descriptors DEI
CURRENTS; ECR CURRENT DRIVE; EFFICIENCY; HELIOTRON; MAGNETIC FIELD RIPPLES; TRAPPED ELECTRONS
Descriptors DEC
CLOSED PLASMA DEVICES; ELECTRONS; ELEMENTARY PARTICLES; FERMIONS; LEPTONS; MAGNETIC FIELD CONFIGURATIONS; NON-INDUCTIVE CURRENT DRIVE; THERMONUCLEAR DEVICES

Optional Information

Secondary number(s)
EX/P6--15