Results 121 to 130 of about 6,414 (234)

Design workflow of a symmetric traveling wave antenna for fast ion production on DD tokamaks

Nuclear Fusion
Initial computational plasma physics scoping and a finite element method antenna modeling design workflow for a symmetric center-fed high-field side high harmonic fast wave traveling wave array (TWA) antenna are reported here.
J.G. van de Lindt, S.J. Wukitch, N. Bertelli, S. Shiraiwa   +3 more
doaj   +1 more source

Extended X-ray absorption fine structure of dynamically-compressed copper up to 1 terapascal. [PDF]

Nat Commun, 2023
Sio H, Krygier A, Braun DG, Rudd RE, Bonev SA, Coppari F, Millot M, Fratanduono DE, Bhandarkar N, Bitter M, Bradley DK, Efthimion PC, Eggert JH, Gao L, Hill KW, Hood R, Hsing W, Izumi N, Kemp G, Kozioziemski B, Landen OL, Le Galloudec K, Lockard TE, Mackinnon A, McNaney JM, Ose N, Park HS, Remington BA, Schneider MB, Stoupin S, Thorn DB, Vonhof S, Wu CJ, Ping Y.   +33 more
europepmc   +1 more source

Physical origin of ultra-high neutral pressures in the Large Helical Device

Nuclear Fusion
Efficient particle exhaust remains a key challenge in magnetic confinement fusion, particularly in stellarators, where divertor neutral pressures are typically low. Recently, exceptionally high neutral pressures-up to 2.4 Pa-were measured in the divertor
U. Wenzel, G. Motojima, S. Masuzaki, M. Kobayashi, M. Goto, B. Peterson, M. Shoji   +6 more
doaj   +1 more source

Review of plasma turbulence experiments. [PDF]

Proc Jpn Acad Ser B Phys Biol Sci, 2021
Fujisawa A.
europepmc   +1 more source

Design of 3D equilibria and coils for steady-state operation of tokamaks

Nuclear Fusion
Inspired by the respective advantages of tokamaks and stellarators, we propose a quasi-axisymmetric (QA) tokamak-stellarator hybrid concept as a steady-state operation mode of standard tokamaks.
Yihui Liang, Yao Zhou, Fanghao Dong, Caoxiang Zhu, Guodong Yu, Yuansheng Zhao, Ge Dong   +6 more
doaj   +1 more source

Results of Compact Stellarator Eengineering Trade Studies

, 2009
A number of technical requirements and performance criteria can drive stellarator costs, e.g., tight tolerances, accurate coil positioning, low aspect ratio (compactness), choice of assembly strategy, metrology, and complexity of the stellarator coil ...
T. Brown, L. Bromberg, and M. Cole
core  

Finite-β turbulence in Wendelstein 7-X enhanced by sub-threshold kinetic ballooning modes

Nuclear Fusion
Magnetic fluctuations affecting turbulence and transport, which are manifest at finite normalized plasma pressure β , pose a significant challenge to magnetic confinement fusion devices aiming to achieve high performance.
P. Mulholland, M.J. Pueschel, J.H.E. Proll, K. Aleynikova, B.J. Faber, P.W. Terry, C.C. Hegna, C. Nührenberg   +7 more
doaj   +1 more source

Analytic representation of three-dimensional stellarator field [PDF]

, 1983
The stellarator configuration can be greatly simplified when toroidal harmonics are introduced. The toroidal function satisfies Laplace's equation and together with toroidal field and vertical field, a small-aspect-ratio stellarator can be constructed ...
Yoshikawa, S.
core  

Stellarator Research Opportunities: A Report of the National Stellarator Coordinating Committee

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 widely
David A. Gates, David Anderson, S. Anderson, M. Zarnstorff, Donald A. Spong, Harold Weitzner, G. H. Neilson, D. Ruzic, D. Andruczyk, J. H. Harris, H. Mynick, C. C. Hegna, O. Schmitz, J. N. Talmadge, D. Curreli, D. Maurer, A. H. Boozer, S. Knowlton, J. P. Allain, D. Ennis, G. Wurden, A. Reiman, J. D. Lore, Matt Landreman, J. P. Freidberg, S. R. Hudson, M. Porkolab, D. Demers, J. Terry, E. Edlund, S. A. Lazerson, N. Pablant, R. Fonck, F. Volpe, J. Canik, R. Granetz, A. Ware, J. D. Hanson, S. Kumar, C. Deng, K. Likin, A. Cerfon, A. Ram, A. Hassam, S. Prager, C. Paz-Soldan, M. J. Pueschel, I. Joseph, A. H. Glasser
core   +1 more source

Efficient calculation of self magnetic field, self-force, and self-inductance for electromagnetic coils with rectangular cross-section

Nuclear Fusion
For designing high-field electromagnets, the Lorentz force on coils needs to be computed in order to design suitable support structures, and the inductance should be computed to evaluate the stored energy and dynamics.
Matt Landreman, Siena Hurwitz, Thomas M. Antonsen   +2 more
doaj   +1 more source