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pro vyhledávání: '"Neil Pomphrey"'
A neoclassically optimized compact stellarator with simple coils has been designed. The magnetic field of the new stellarator is generated by only four planar coils including two interlocking coils of elliptical shape and two circular poloidal field
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5d7a4d1483ee06d565c911378c3647b8
Publikováno v:
Physics of Plasmas
An optimization study of Quasi-Axisymmetric (QA) stellarators with varied elongation has been carried out using the optimization code STELLOPT. The starting point of our optimization is a previously obtained QA stellarator with three field periods an
Autor:
B.E. Nelson, K. Freudenberg, R. Strykowsky, Donald Rej, G. Labik, A. Brooks, H. M. Fan, Robert Ellis, S. Raftopoulos, T. Dodson, P.L. Goranson, L. Dudek, W.R. Sands, F. Dahlgren, P.J. Heitzenroeder, C. Priniski, M. Kalish, D. Williamson, M.J. Cole, Thomas Brown, R. Simmons, B.E. Stratton, M. Viola, J. H. Harris, W. Reiersen, M. C. Zarnstorff, George H. Neilson, Neil Pomphrey, J. F. Lyon, P.J. Fogarty, J. Chrzanowski
Publikováno v:
Fusion Science and Technology. 56:485-492
The National Compact Stellarator Experiment (NCSX) was designed to test a compact, quasiaxisymmetric stellarator configuration. Flexibility and accurate realization of its complex 3D geometry were key requirements affecting the design and constructio
Autor:
M. H. Redi, Neil Pomphrey, S. P. Hirshman, A. Brooks, M. C. Zarnstorff, R. Hatcher, D. A. Monticello, Allen H. Boozer, E. A. Lazarus, A. H. Reiman, L. P. Ku, I. Zatz, H.E. Mynick, Stuart R. Hudson
Publikováno v:
Fusion Science and Technology. 51:181-202
The National Compact Stellarator Experiment (NCSX) will study the physics of low-aspect ratio, high-β, quasi-axisymmetric stellarators. To achieve the scientific goals of the NCSX mission, the devi...
Publikováno v:
2015 IEEE 26th Symposium on Fusion Engineering (SOFE).
As part of an early PPPL pilot plant study an engineering exercise was undertaken to straighten the stellarator modular coil (MC) back legs to provide greater access to plasma components. Saddle coils were located within separate enclosures and confi
Autor:
Edward A. Lazarus, D. A. Monticello, D. R. Mikkelsen, M. C. Zarnstorff, Allen H. Reiman, L. P. Ku, Neil Pomphrey, S. R. Hudson, Douglas C. McCune
Publikováno v:
Fusion Science and Technology. 46:209-214
It is demonstrated that there exists a plausible evolution of the discharge from the vacuum state to the desired high beta state with the self-consistent bootstrap current profile. The discharge evolution preserves stability and has adequate quasi ax
Autor:
J. P. Kremer, R. G. Lefrancois, Neil Pomphrey, W. Reiersen, Allen H. Boozer, F. Dahlgren, Thomas Sunn Pedersen
Publikováno v:
Fusion Science and Technology. 46:200-208
The Columbia Nonneutral Torus is a new stellarator experiment being built at Columbia University, New York, to study the confinement of nonneutral and electron-positron plasmas. It will be a two-period, ultralow aspect ratio classical stellarator con
Publikováno v:
Physics of Plasmas. 9:869-876
An exploration of stellarator configuration space z for quasi-axisymmetric stellarator (QAS) designs is discussed, using methods which provide a more global view of that space. To this end, a “differential evolution” search algorithm has been imp
Autor:
E. A. Lazarus, W. Reiersen, B.E. Nelson, R. Hatcher, M. Isaev, Donald A. Spong, J. F. Lyon, C. Nuehrenberg, D. R. Mikkelsen, J. Schmidt, Raul Sanchez, Robert James Goldston, Stuart R. Hudson, S. Hirshman, W. A. Cooper, A. H. Reiman, Dennis J Strickler, Charles Kessel, Neil Pomphrey, Roscoe White, L. P. Ku, M. H. Redi, G. H. Neilson, Guoyong Fu, Allen H. Boozer, P. H. Rutherford, M. C. Zarnstorff, Eric Fredrickson, A. Brooks, H.E. Mynick, J. L. V. Lewandowski, D. A. Monticello, Lee A. Berry, P. Merkel
Publikováno v:
Plasma Physics and Controlled Fusion. 43:A237-A249
Compact optimized stellarators offer novel solutions for confining high-beta plasmas and developing magnetic confinement fusion. The three-dimensional plasma shape can be designed to enhance the magnetohydrodynamic (MHD) stability without feedback or
Publikováno v:
Nuclear Fusion. 41:1185-1195
A new global optimization technique for designing stellarator coils has been developed and applied to the design of coils for the National Compact Stellarator Experiment. Using this technique coil sets were found with fewer coils and lower current de