Zobrazeno 1 - 10
of 59
pro vyhledávání: '"Joseph Talmadge"'
Publikováno v:
Physics of Plasmas, 28, 042503
Physics of Plasmas, 28(4):042503. American Institute of Physics
Physics of Plasmas, 28(4):042503. American Institute of Physics
The linear collisionless damping of zonal flows is calculated for quasi-symmetric stellarator equilibria in flux-tube, flux-surface, and full-volume geometry. Equilibria are studied from the quasi-helical symmetry configuration of the Helically Symme
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6f06295cab78cb97c75895b1ae20754d
https://doi.org/10.1063/5.0038841
https://doi.org/10.1063/5.0038841
Autor:
B. J. Faber, Michael Drevlak, Aaron Bader, Konstantin Likin, J.C. Schmitt, David G. Anderson, Joseph Talmadge, Chris Hegna
Publikováno v:
Journal of Plasma Physics. 85
Stellarator configurations with reactor relevant energetic particle losses are constructed by simultaneously optimizing for quasisymmetry and an analytically derived metric ( $\unicode[STIX]{x1D6E4}_{c}$ ), which attempts to align contours of the sec
Autor:
F. S. B. Anderson, Shinsuke Ohshima, S. Kobayashi, C. Deng, Joseph Talmadge, S. T. A. Kumar, Konstantin Likin, David G. Anderson
Publikováno v:
Review of Scientific Instruments. 92:063503
This study shows the feasibility of a beam emission spectroscopy (BES) diagnostic in the Helically Symmetric eXperiment (HSX) stellarator for obtaining the spatiotemporal structure of density fluctuation. A beam emission simulation was applied to HSX
Autor:
B. J. Faber, Chris Hegna, H. Mynick, I. J. McKinney, Pavlos Xanthopoulos, M. J. Pueschel, Joseph Talmadge, David G. Anderson
Publikováno v:
Journal of Plasma Physics
Ion-temperature-gradient-driven (ITG) turbulence is compared for two quasi-symmetric (QS) stellarator configurations to determine the relationship between linear growth rates and nonlinear heat fluxes. We focus on the quasi-helically symmetric (QHS)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::69a34634a94de161525188491f0d1bf2
https://hdl.handle.net/21.11116/0000-0005-44C3-221.11116/0000-0005-C54B-921.11116/0000-0005-4E44-8
https://hdl.handle.net/21.11116/0000-0005-44C3-221.11116/0000-0005-C54B-921.11116/0000-0005-4E44-8
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
The proposed research focuses on targeted areas of plasma physics dedicated to improving the stellarator concept. Research was pursued in the technical areas of edge/divertor physics in 3D configurations, magnetic island physics in stellarators, the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b38020ac2a484e3b176a688770a36aca
https://doi.org/10.2172/1328005
https://doi.org/10.2172/1328005
Autor:
Joseph Talmadge
Publikováno v:
Nature Physics. 14:779-780
The first campaign of the largest stellarator ever built, Wendelstein 7-X, has been successful, achieving high electron temperatures and minimal self-generated plasma current. This is very encouraging for future long-pulse, full-power operation.
Publikováno v:
Nuclear Fusion. 59:046007
Publikováno v:
Contributions to Plasma Physics. 50:741-744
A Charge Exchange Recombination Spectroscopy (ChERS) system has been used to measure the velocity, density, and temperature profiles of fully stripped carbon impurities in the Helically Symmetric eXperiment (HSX). Velocity measurements have been obta
Publikováno v:
Contributions to Plasma Physics. 50:745-749
A set of magnetic diagnostics, including Rogowski coils, diamagnetic loops and two poloidal ‘belts’ of 3-axis pick-up coils measure the magnetic field at several locations around HSX. The two belts are separated by ≈1/3 of a field period and me