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Ion heat pulse after sawtooth crash in the JFT-2M tokamak

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Abstract

The ion heat pulse after sawtooth crash is studied with the time-of-flight neutral measurement on the JFT-2M tokamak. The rapid change of the bulk ion energy distribution near the edge is observed after sawtooth crash. The delay time is measured and the effective measuring position is estimated by a neutral transport code, then the thermal conductivity, {chi}{sub i}{sup HP}, of about 15{+-}10m{sup 2}/sec is evaluated for the L-mode plasma. The simple diffusive model with constant {chi}{sub i}{sup HP}, however, does not explain the amplitude of the pulse in the ion energy distribution. (author).
Authors:
Miura, Y; Okano, F; Suzuki, N; Mori, M; Hoshino, K; Maeda, H; Takizuka, T; [1]  Itoh, K; Itoh, S
  1. Japan Atomic Energy Research Inst., Tokai, Ibaraki (Japan). Tokai Research Establishment
Publication Date:
Aug 01, 1993
Product Type:
Technical Report
Report Number:
NIFS-240
Reference Number:
SCA: 700340; PA: JPN-94:004183; EDB-94:085863; ERA-19:023148; NTS-95:001372; SN: 94001212273
Resource Relation:
Other Information: PBD: Aug 1993
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; JFT-2M TOKAMAK; CHARGED-PARTICLE TRANSPORT; SAWTOOTH OSCILLATIONS; PLASMA DISRUPTION; NEUTRAL ATOM BEAM INJECTION; ENERGY SPECTRA; TIME-OF-FLIGHT METHOD; THERMAL CONDUCTIVITY; EDGE LOCALIZED MODES; 700340; PLASMA WAVES, OSCILLATIONS, AND INSTABILITIES
OSTI ID:
10156106
Research Organizations:
National Inst. for Fusion Science, Nagoya (Japan)
Country of Origin:
Japan
Language:
English
Other Identifying Numbers:
Other: ON: DE94770685; TRN: JP9404183
Availability:
OSTI; NTIS; INIS
Submitting Site:
JPN
Size:
21 p.
Announcement Date:
Jul 06, 2005

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Citation Formats

Miura, Y, Okano, F, Suzuki, N, Mori, M, Hoshino, K, Maeda, H, Takizuka, T, Itoh, K, and Itoh, S. Ion heat pulse after sawtooth crash in the JFT-2M tokamak. Japan: N. p., 1993. Web.
Miura, Y, Okano, F, Suzuki, N, Mori, M, Hoshino, K, Maeda, H, Takizuka, T, Itoh, K, & Itoh, S. Ion heat pulse after sawtooth crash in the JFT-2M tokamak. Japan.
Miura, Y, Okano, F, Suzuki, N, Mori, M, Hoshino, K, Maeda, H, Takizuka, T, Itoh, K, and Itoh, S. 1993. "Ion heat pulse after sawtooth crash in the JFT-2M tokamak." Japan.
@misc{etde_10156106,
title = {Ion heat pulse after sawtooth crash in the JFT-2M tokamak}
 author = {Miura, Y, Okano, F, Suzuki, N, Mori, M, Hoshino, K, Maeda, H, Takizuka, T, Itoh, K, and Itoh, S}
 abstractNote = {The ion heat pulse after sawtooth crash is studied with the time-of-flight neutral measurement on the JFT-2M tokamak. The rapid change of the bulk ion energy distribution near the edge is observed after sawtooth crash. The delay time is measured and the effective measuring position is estimated by a neutral transport code, then the thermal conductivity, {chi}{sub i}{sup HP}, of about 15{+-}10m{sup 2}/sec is evaluated for the L-mode plasma. The simple diffusive model with constant {chi}{sub i}{sup HP}, however, does not explain the amplitude of the pulse in the ion energy distribution. (author).}
 place = {Japan}
 year = {1993}
 month = {Aug}
 }