Improved plasma performance on Large Helical Device
نویسندگان
چکیده
منابع مشابه
High Density High Performance Plasma with Internal Diffusion Barrier in Large Helical Device
Abstract. A attractive high density plasma operational regime, namely an internal diffusion barrier (IDB), has been discovered in the intrinsic helical divertor configuration on the Large Helical Device (LHD). The IDB which enables core plasma to access a high density/high pressure regime has been developed. It is revealed that the IDB is reproducibly formed by pellet fueling in the magnetic co...
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A new type of infrared imaging bolometer, known as the infrared imaging video bolometer ~IRVB! has been under development at the National Institute of Fusion Science ~NIFS! over the last year. A prototype of this diagnostic has been designed and constructed at NIFS and installed on the large helical device ~LHD! and successfully operated. This diagnostic utilizes a 6639030.001 mm gold foil moun...
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This paper reviews major achievements in the large helical device (LHD) project and discusses the prospects in the upcoming nearest future. The LHD is the largest magnetic confinement device among diversified helical systems and employs superconducting coils. These significant features have enabled comprehensive studies on steady-state net-current free plasmas with plasma parameters comparable ...
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Introduction: Auricular reconstruction of partial ear defects is usually challenging, especially in extended resections or traumas. Helical rim is the most noticeable part of ear with aesthetic significance, which demands detailed procedures. Helical rim advancement is a known procedure to reshape lacerated rim. In the original technique, a chondrocutaneous flap is raised in order to preserve t...
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The impurity transport characteristics in the scrape-off layer associated with a stochastic magnetic boundary of LHD are analyzed. The remnant islands with very small internal field line pitch in the stochastic region play a key role in reducing the impurity influx. The thermal force driven impurity influx is significantly suppressed when the perpendicular energy flux exceeds the parallel one i...
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ژورنال
عنوان ژورنال: Physics of Plasmas
سال: 2001
ISSN: 1070-664X,1089-7674
DOI: 10.1063/1.1344561