Zobrazeno 1 - 10
of 67
pro vyhledávání: '"James D. Hanson"'
Autor:
Eric C. Howell, James D. Hanson
Publikováno v:
Journal of Plasma Physics. 86
A non-parametric Gaussian process regression model is developed in the three-dimensional equilibrium reconstruction code V3FIT. A Gaussian process is a normal distribution of functions that is uniquely defined by specifying a mean function and covari
Publikováno v:
Fusion Science and Technology. 74:1-12
Reconstruction is an inverse process where a parameter space is searched to locate a set of parameters with the highest probability of describing experimental observations. Due to systematic errors and uncertainty in experimental measurements, this o
Publikováno v:
Physics of Plasmas. 28:112503
Magnetic field fluctuations are observed in current-carrying stellarator plasmas when the rotational transform is close to a rational value at the edge of the plasma. At low plasma pressure, these fluctuations are associated with perturbed currents p
Publikováno v:
Fusion Science and Technology. 72:76-90
The Compact Toroidal Hybrid (CTH) is a low-aspect-ratio (), low-beta (%) torsatron with a major radius of . CTH is operable as a pure stellarator, but most research on this device is conducted with...
Autor:
Jean Paul Allain, Robert Granetz, Allen H. Boozer, N. A. Pablant, Jeremy Lore, Adil Hassam, J. H. Harris, S. C. Prager, Jeffrey P. Freidberg, Francesco Volpe, David F. Anderson, G. A. Wurden, Konstantin Likin, Matt Landreman, S. T. A. Kumar, Donald A. Spong, Harold Weitzner, Samuel Lazerson, Davide Curreli, Michael Zarnstorff, David Maurer, E.M. Edlund, Antoine J. Cerfon, George H. Neilson, Miklos Porkolab, Daniel Andruczyk, John Canik, R.J. Fonck, A. H. Reiman, Abhay K. Ram, Sherwood Anderson, Ilon Joseph, Oliver Schmitz, David Gates, James D. Hanson, J.L. Terry, C. Deng, A. H. Glasser, D. R. Demers, Chris Hegna, David N. Ruzic, S. F. Knowlton, Joseph Talmadge, Stuart R. Hudson, Carlos Paz-Soldan, Andrew Ware, David Ennis, H. Mynick, M. J. Pueschel
Publikováno v:
Springer US
This document is the product of a stellarator community workshop, organized by the National Stellarator Coordinating Committee and referred to as Stellcon, that was held in Cambridge, Massachusetts in February 2016, hosted by MIT. The workshop was wi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d43320c50c889dbdea6753e283cf4337
https://hdl.handle.net/1721.1/131899
https://hdl.handle.net/1721.1/131899
Autor:
Scott Kruger, J. R. Jepson, Richard J. Groebner, J.D. Hebert, Jacob King, Eric Held, James D. Hanson
Methods are described that extend fields from reconstructed equilibria to include scrape-off-layer current through extrapolated parametrized and experimental fits. The extrapolation includes both the effects of the toroidal-field and pressure gradien
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d74dd89eedfb62f0b214b1849c0d3250
Autor:
James D. Hanson, N. A. Roberds, J. L. Herfindal, X. Ma, S. F. Knowlton, Gregory Hartwell, Mihir Pandya, David Ennis, Peter Traverso, David Maurer
Publikováno v:
Physics of Plasmas. 26:032502
Tokamak-like sawtooth oscillations are observed in the Compact Toroidal Hybrid (CTH), a current-carrying stellarator. CTH has the unique ability to change the amount of the applied vacuum rotational transform from external stellarator coils relative
Publikováno v:
Fusion Science and Technology. 64:498-501
Knowledge of eddy currents in the vacuum vessel walls and nearby conducting support structures can significantly contribute to the accuracy of Magnetohydrodynamics (MHD) equilibrium reconstruction ...
Publikováno v:
Contributions to Plasma Physics. 50:724-730
Detailed knowledge of the experimental plasma equilibrium is becoming as important for stellarators as it is for tokamaks, but reconstruction of magnetic flux surfaces from magnetic measurements is more difficult in the three-dimensional geometry of