Innovations in the LHD Divertor Program

N. Ohyabu; A. Komori; N. Noda; T. Morisaki; A. Sagara; H. Suzuki; T. Watanabe; O. Motojima; H. Takase

doi:dx.doi.org/10.13182/FST95-A11962954

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Innovations in the LHD Divertor Program

N. Ohyabu, A. Komori, N. Noda, T. Morisaki, A. Sagara, H. Suzuki, T. Watanabe, O. Motojima, H. Takase

Fusion Science and Technology / Volume 27 / Number 3T / April 1995 / Pages 519-522

Plasma Particle and Heat Control Studies / dx.doi.org/10.13182/FST95-A11962954

Published:February 8, 2018

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Various innovative divertor concepts have been developed to improve the LHD plasma performance. They are two divertor magnetic geometries (helical divertor configurations with and without n/m =1/1 island) and two operational scenarios (confinement improvement by generating high temperature divertor plasma and simultaneous achievement of radiative cooling and H-mode-like confinement improvement). In addition, technological development of new efficient hydrogen pumping schemes are being pursued for enhancing the divertor control capability.