Experimental observations of enhanced radial transport of energetic particles with Alfvén eigenmode on the LHD

200692 citationsJournal Article

Authors

M. Osakabe · National Institute for Fusion Science

S. Yamamoto · Osaka University

K. Toi · National Institute for Fusion Science

Y. Takeiri · National Institute for Fusion Science

S. Sakakibara · National Institute for Fusion Science

K. Nagaoka · National Institute for Fusion Science

K. Tanaka

Abstract

Clump and hole creations are observed with TAE bursts in energetic neutral spectra at low-magnetic field configurations of the LHD. Energy slowing down of the clump and the hole are also observed, experimentally. From the slowing down time analysis of the clump and/or hole, the location of each orbit is identified. The drift surface of each orbit has its maximum or second maximum close to the gap location of the TAE burst. The simultaneous observations of clump and hole creations in the energetic spectra reveal the enhanced radial transport of energetic particles by TAE bursts on the LHD.

Topics & Keywords

Magnetic confinement fusion research Ionosphere and magnetosphere dynamics Solar and Space Plasma Dynamics

UN Sustainable Development Goals

Affordable and clean energy

Publication Details

Published in: Nuclear Fusion

Volume 46, Issue 10, pp. S911-S917

DOI: 10.1088/0029-5515/46/10/s07

Field-Weighted Citation Impact: 2.98