High density and high temperature plasmas in Large Helical Device
نویسندگان
چکیده
منابع مشابه
Characteristics of High-Ion-Temperature Plasmas heated by Neutral Beams in the Large Helical Device
Improvement of ion heat transport in Heliotron plasmas has been realized by upgrade of ion heating power by using low energy neutral beam (NB) in the Large Helical Device (LHD). Ion internal transport barrier (ITB) (the peaked profile of ion temperature (Ti) with steep gradient in the core region) has been formed and the central Ti of 6.8 keV has been achieved in hydrogen plasma with the line-a...
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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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In this work we discuss how and to what extent the thermodynamic concepts and the thermodynamic formalism can be extended to the description of high temperature states of the plasma not necessarily associated with a Boltzmann distribution and with thermal equilibrium.The discussion is based on the “magnetic or electrostatic entropy concept”, an interpretative and predictive tool based on probab...
متن کاملTwo approaches to the reactor–relevant high–beta plasmas with profile control in the Large Helical Device
From detailed optimization of configuration, volume averaged beta < β >∼ 5% has been achieved in the Large Helical Device(LHD). While the heating efficiency was the main point to be optimized in this approach, to form a more peaked pressure profile is another promising approach towards the high beta regime. A higher electron density profile with a steeper pressure gradient has been formed by pe...
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4.1. SOLID-LINER FLUX COMPRESSION..............................................................................................................3 Motivation ............................................................................................................................................................3 Scientific Objectives ................................................................
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ژورنال
عنوان ژورنال: Journal of Physics: Conference Series
سال: 2010
ISSN: 1742-6596
DOI: 10.1088/1742-6596/257/1/012025