Review on the Progress of the LHD Experiment
Authors:
- 1 July 2004
- journal article
- review article
- Published by Taylor & Francis in Fusion Science and Technology
- Vol. 46 (1) , 1-12
Abstract
Recent progress in the Large Helical Device (LHD) experiment during the last 2 yr is reviewed. The LHD has been extending its operational regime toward fusion-relevant conditions while taking advantage of the net-current-free heliotron concept employing a superconducting coil system. Heating capability has exceeded 10 MW, and the central ion and electron temperatures have reached 7 and 10 keV, respectively. The maximum values of beta and pulse length have been extended to 3.2% and 150 s, respectively. Several encouraging physics observations have been obtained, i.e., simultaneous achievement of the mitigation of the magnetohydrodynamic instability criteria and good confinement, and formation of an internal transport barrier. The initial results have been obtained using a local island divertor, which shows the possibility of particle control at the plasma edge.Keywords
This publication has 35 references indexed in Scilit:
- Recent advances in the LHD experimentNuclear Fusion, 2003
- Experiments close to the beta-limit in W7-ASPlasma Physics and Controlled Fusion, 2003
- Engineering prospects of negative-ion-based neutral beam injection system from high power operation for the large helical deviceNuclear Fusion, 2003
- Ion cyclotron range of frequencies heating and high-energy particle production in the Large Helical DeviceNuclear Fusion, 2003
- Overview of LHD experimentsNuclear Fusion, 2001
- ECH system and its application to long pulse discharge in large helical deviceFusion Engineering and Design, 2001
- Progress summary of LHD engineering design and constructionNuclear Fusion, 2000
- Overview of the Large Helical Device projectNuclear Fusion, 1999
- Initial physics achievements of large helical device experimentsPhysics of Plasmas, 1999
- The Confinement of Plasma by the Heliotron Magnetic FieldJournal of the Physical Society of Japan, 1961