Results 21 to 30 of about 415 (105)

Search for quasi-isodynamic configurations with diminished parallel current density [PDF]

, 2007
Bovshuk, V., Cooper, W., Mikhailov, M., Nührenberg, J., Shafranov, V.   +4 more
core   +3 more sources

Collisionless microinstabilities in stellarators I - analytical theory of trapped-particle modes

, 2013
This is the first of two papers about collisionless, electrostatic micro-instabilities in stellarators, with an emphasis on trapped-particle modes. It is found that, in so-called maximum-$J$ configurations, trapped-particle instabilities are absent in ...
Helander, P., Plunk, G. G., Proll, J. H. E.   +2 more
core   +1 more source

Properties of an N=4 optimized quasi-isodynamic configuration [PDF]

, 2010
Cooper, W., Mikhailov, M., Nührenberg, C., Nührenberg, J., Shafranov, V.   +4 more
core   +2 more sources

Effect of discreteness and misalignment on magnetic field and charged particle confinement in CFQS quasi-axisymmetric stellarator [PDF]

, 2023
0000-0002-5601-7106The Chinese first quasi-axisymmetric stellarator (CFQS), which will be the first quasi-axisymmetric (QA) stellarator in the world, is now under construction.
126503, 126542, 127127, 127313, 127532, 127533, 127575, 127576, 127577, 127578, 127760, 128099, 128100, 66532, 66533, 66536, 67436, CHENG, Jun, HUANG, Jie, ISOBE, Mitsutaka, KINOSHITA, Shigeyoshi, LIU, Hai, LIU, Haifeng, OGAWA, Kunihiro, OKAMURA, Shoichi, SHIMIZU, Akihiro, TANG, Changjian, WANG, Anzhu, WANG, Xianqu, XIONG, Guozhen, XU, Yuhong, YIN, Dapeng, ZHANG, Xin, ZHANG, Yichao   +33 more
core   +1 more source

The maximum-J property in quasi-isodynamic stellarators

Journal of Plasma Physics
Some stellarators tend to benefit from favourable average magnetic curvature for trapped particles when the plasma pressure is sufficiently high. This so-called maximum- $J$ property has several positive implications, such as good fast-particle confinement, magnetohydrodynamic stability and suppression of certain trapped ...
Rodríguez, E., Helander, P., Goodman, A.G.   +2 more
openaire   +3 more sources

Geometry effects on zonal flow dynamics and turbulent transport in optimized stellarators

Nuclear Fusion
Global gyrokinetic simulations find a strong suppression of ion temperature gradient (ITG) turbulence by zonal flows in stellarators optimized for neoclassical transport.
Haotian Chen, Xishuo Wei, Hongxuan Zhu, Zhihong Lin   +3 more
doaj   +1 more source

Magnetic Coils for a High-β Quasi-isodynamic Stellarator [PDF]

, 2006
Cooper, W., Drevlak, M., Isaev, M., Mikhailov, M., Nührenberg, J., Shafranov, V., Subbotin, A., Zille, R.   +7 more
core   +2 more sources

Results from helical axis stellarators

, 2001
Helical axis stellarators produce magnetic surfaces of high rotational transform and moderate shear solely by means of external currents, with the promise of high b.
Blackwell, B. D.
core   +1 more source

Exploration of the parameter space of piecewise omnigenous stellarator magnetic fields

Nuclear Fusion
Piecewise omnigenous fields are stellarator magnetic fields that are optimized with respect to radial neoclassical transport thanks to a second adiabatic invariant that is piecewisely constant on the flux-surface.
J.L. Velasco, E. Sánchez, I. Calvo
doaj   +1 more source

Quasi-geometric integration of guiding-center orbits in piecewise linear toroidal fields [PDF]

, 2020
A numerical integration method for guiding-center orbits of charged particles in toroidal fusion devices with three-dimensional field geometry is described. Here, high order interpolation of electromagnetic fields in space is replaced by a special linear
Albert, C. G., Bauer, L. M. P., Eder, M., Kasilov, S. V., Kernbichler, W.   +4 more
core   +3 more sources