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Helical divertor in the Large Helical Device

Technical Report:

Abstract

The Large Helical device (LHD), now under construction is a Heliotron / torsatron device with a closed divertor system. The edge LHD magnetic structure has been studied in detail. A peculiar feature of the configuration is existence of edge surface layers, a complicated three dimensional magnetic structure. However it does not seem to hamper the expected divertor functions. As a confinement improvement scheme in LHD, we have proposed a high temperature divertor plasma operation in which a divertor plasma with temperature of a few kev, generated by efficient pumping, leads to the confinement improvement. Conceptual designs of the LHD divertor components are under way. (author).
Authors:
Ohyabu, N; Noda, N; Ji, H [1] 
  1. and others
Publication Date:
May 01, 1992
Product Type:
Technical Report
Report Number:
NIFS-144
Reference Number:
SCA: 700420; PA: JPN-92:011116; SN: 93000918521
Resource Relation:
Other Information: PBD: May 1992
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; STELLARATORS; DIVERTORS; MAGNETIC CONFINEMENT; HELICAL CONFIGURATION; MAGNETIC SURFACES; PLASMA SCRAPE-OFF LAYER; EXHAUST SYSTEMS; ROTATIONAL TRANSFORM; 700420; PLASMA-FACING COMPONENTS
OSTI ID:
10111154
Research Organizations:
National Inst. for Fusion Science, Nagoya (Japan)
Country of Origin:
Japan
Language:
English
Other Identifying Numbers:
Other: ON: DE93753195; TRN: JP9211116
Availability:
OSTI; NTIS; INIS
Submitting Site:
JPN
Size:
22 p.
Announcement Date:
Jun 30, 2005

Technical Report:

Citation Formats

Ohyabu, N, Noda, N, and Ji, H. Helical divertor in the Large Helical Device. Japan: N. p., 1992. Web.
Ohyabu, N, Noda, N, & Ji, H. Helical divertor in the Large Helical Device. Japan.
Ohyabu, N, Noda, N, and Ji, H. 1992. "Helical divertor in the Large Helical Device." Japan.
@misc{etde_10111154,
title = {Helical divertor in the Large Helical Device}
author = {Ohyabu, N, Noda, N, and Ji, H}
abstractNote = {The Large Helical device (LHD), now under construction is a Heliotron / torsatron device with a closed divertor system. The edge LHD magnetic structure has been studied in detail. A peculiar feature of the configuration is existence of edge surface layers, a complicated three dimensional magnetic structure. However it does not seem to hamper the expected divertor functions. As a confinement improvement scheme in LHD, we have proposed a high temperature divertor plasma operation in which a divertor plasma with temperature of a few kev, generated by efficient pumping, leads to the confinement improvement. Conceptual designs of the LHD divertor components are under way. (author).}
place = {Japan}
year = {1992}
month = {May}
}