Zobrazeno 1 - 10
of 20
pro vyhledávání: '"G.D. Garstka"'
Autor:
N.W. Eidietis, Ezekial A Unterberg, Aaron Sontag, B. J. Squires, R.J. Fonck, M.B. McGarry, D. J. Battaglia, G.D. Garstka, Michael W. Bongard, G.R. Winz, M.J. Frost
Publikováno v:
Journal of Fusion Energy. 27:20-24
Large stable values of normalized current IN are achievable in spherical tori due to the large gradient of the toroidal field across the plasma. This allows access to high Troyon beta limits. Values of IN > 12 MA/m-T are expected to be stable to idea
Publikováno v:
Journal of Fusion Energy. 26:43-46
Formation of tokamak-like plasmas via electrostatic helicity injection in the ultra-low aspect ratio Pegasus Toroidal Experiment is reported. Two low-impurity, high-current (1 kA) washer gun current sources have been installed in the lower divertor r
Autor:
R.J. Fonck, Michael W. Bongard, G.R. Winz, B.A. Kujak-Ford, B. J. Squires, N.W. Eidietis, D. J. Battaglia, G.D. Garstka, Ezekial A Unterberg, B.T. Lewicki, M.J. Frost
Publikováno v:
Journal of Fusion Energy. 26:221-225
Initial experiments in the Pegasus ST exhibited an operational limit of I p ∼ I tf at A ∼ 1.15. With new power supplies, discharge control has greatly increased. Equilibria and stability modeling of the high I p/I tf regime has produced stable eq
Autor:
B.T. Lewicki, Ezekial A Unterberg, R.J. Fonck, D. J. Battaglia, S. J. Diem, G.D. Garstka, B. J. Squires, G. Taylor, N.W. Eidietis, Michael W. Bongard, B.A. Kujak-Ford, G.R. Winz, M.J. Frost
Publikováno v:
Nuclear Fusion. 46:S603-S612
The Pegasus Toroidal Experiment was developed to explore the physics limits of plasma operation as the aspect ratio (A) approaches unity. Initial experiments on the device found that access to high normalized current and toroidal beta was limited by
Autor:
Mark D. Carter, Fred Levinton, J.R. Ferron, C. Neumeyer, Clarisse Bourdelle, M.J. Schaffer, T.K. Gray, W. Davis, G. Oliaro, Jonathan Menard, D. Piglowski, J. L. Lowrance, P. H. Probert, F. Paoletti, Stanley Kaye, C.E. Bush, B. Peneflor, R.P. Doerner, R. E. Bell, M. Rensink, A. von Halle, R.J. Hawryluk, Osamu Mitarai, R.J. Akers, T. Peebles, John B Wilgen, Stephen Jardin, R.J. Fonck, G. D. Porter, R.I. Pinsker, E.D. Fredrickson, Nobuhiro Nishino, Yueng Kay Martin Peng, S. C. Luckhardt, Robert James Goldston, S. Ramakrishnan, Roger Raman, P.M. Ryan, S. Kubota, S. G. Lee, R. E. Barry, T. Stevenson, R. Marsala, M.M. Menon, D. Pacella, Robert Kaita, M. Williams, Vlad Soukhanovskii, C. N. Ostrander, Brian Nelson, M.G. Bell, Masayoshi Nagata, Yuichi Takase, Xueqiao Xu, Stewart Zweben, B. C. Stratton, M. Kalish, D. Mueller, S. J. Diem, R. P. Seraydarian, J.A. Boedo, Dan Stutman, Larry R. Grisham, P. C. Efthimion, Rajesh Maingi, J. Chrzanowski, J.M. Bialek, Ryan J. Schooff, K. W. Hill, P. Sichta, E. Mazzucato, B. Blagojevic, Xian-Zhu Tang, Thomas Jarboe, Peter Beiersdorfer, L.L. Lao, Richard Majeski, S.F. Paul, William Heidbrink, T. K. Mau, Neville C. Luhmann, C. K. Phillips, R. Hatcher, D.W. Swain, S.A. Sabbagh, J. Manickam, D. Mastravito, Wonho Choe, E. Fredd, B. H. Deng, D. S. Darrow, Alan H. Glasser, A. K. Ram, R. A. Ellis, J. Spaleta, D.P. Stotler, David Johnson, G. A. Wurden, D. Hoffman, P. Roney, H.W. Kugel, M. H. Redi, P.T. Bonoli, Ker-Chung Shaing, J. C. Hosea, J. Foley, David Gates, B.P. LeBlanc, Wayne A Houlberg, Mark Gilmore, G.D. Garstka, Manfred Bitter, G. Rewoldt, K. Tritz, A. L. Roquemore, T.S. Bigelow, S. S. Medley, G. Taylor, William R. Wampler, Aaron Sontag, James R. Wilson, Jan Egedal, L. Dudek, Michael Finkenthal, T. Gibney, Ricardo Maqueda, R. W. Harvey, K. C. Lee, E. J. Synakowski, A. Rosenberg, J. Timberlake, W. Blanchard, C.E. Kessel, Michael W Kissick, Masayuki Ono, S. Shiraiwa, W. Park, Hyeon K. Park, B.T. Lewicki, R. Parsells, C.H. Skinner, Jayhyun Kim, R. Vero, J. Robinson, Ezekial A Unterberg, Hantao Ji
Publikováno v:
Scopus-Elsevier
Research on the spherical torus (or spherical tokamak) (ST) is being pursued to explore the scientific benefits of modifying the field line structure from that in more moderate aspect ratio devices, such as the conventional tokamak. The ST experiment
Autor:
Ezekial A Unterberg, G.D. Garstka, K. Tritz, S. J. Diem, B.T. Lewicki, R.J. Fonck, Aaron Sontag
Publikováno v:
Physics of Plasmas. 10:1705-1711
The Pegasus Toroidal Experiment [R. Fonck et al., Bull. Am. Phys. Soc. 41, 1400 (1996)] is a spherical torus designed to study the limits of plasma behavior as the aspect ratio A approaches unity. Access to near-unity A is achieved through the use of
Autor:
Ezekial A Unterberg, Hantao Ji, L. Dudek, A. Rosenberg, J. Timberlake, Michael Finkenthal, R. E. Barry, J. Manickam, E. J. Synakowski, M. G. Bell, L. R. Grisham, C.E. Kessel, Dennis Mueller, J.A. Boedo, M.I. Williams, R.J. Hawryluk, Osamu Mitarai, S.M. Kaye, R. Marsala, Ryan J. Schooff, F. Paoletti, S. G. Lee, H.W. Kugel, R. Hatcher, G. Oliaro, G. D. Porter, J.E. Menard, K. Tritz, Ker-Chung Shaing, R. Parsells, Wonho Choe, S.F. Paul, Vlad Soukhanovskii, J. Foley, T. Gibney, J. Spaleta, T.K. Gray, P.T. Bonoli, C.H. Skinner, P. Sichta, Jayhyun Kim, T. N. Stevenson, R. W. Harvey, A. L. Roquemore, B. Peneflor, R.P. Doerner, D. Piglowski, P. C. Efthimion, M. Ono, M.J. Schaffer, Xian-Zhu Tang, P.M. Ryan, Kun-Chun Lee, Manfred Bitter, T.S. Bigelow, D.P. Stotler, S. S. Medley, R. Vero, Neville C. Luhmann, D.W. Swain, Masayoshi Nagata, Yuichi Takase, B. Blagojevic, R.E. Bell, J. L. Lowrance, R.I. Pinsker, S. Shiraiwa, G. Rewoldt, William Heidbrink, Nobuhiro Nishino, J.R. Ferron, C.E. Bush, Hyeon K. Park, C. Neumeyer, G. Taylor, K. W. Hill, C. K. Phillips, James R. Wilson, D.A. Gates, R. Seraydarian, R. J. Akers, Clarisse Bourdelle, E. Fredd, M.E. Rensink, D. Hoffman, P. Roney, L.L. Lao, William R. Wampler, Aaron Sontag, W. Davis, W. Park, Xueqiao Xu, Stewart Zweben, T. K. Mau, S.A. Sabbagh, Dan Stutman, Yueng Kay Martin Peng, Jan Egedal, Thomas Jarboe, Roger Raman, B.T. Lewicki, S. Kubota, R.J. Fonck, E.D. Fredrickson, Richard Majeski, M.M. Menon, Abhay K. Ram, J. C. Hosea, B. C. Stratton, C. N. Ostrander, D. S. Darrow, D. Mastravito, B.P. LeBlanc, Peter Beiersdorfer, Brian Nelson, Wayne A Houlberg, Mark Gilmore, G.D. Garstka, R. Maingi, Carter, B. H. Deng, J. Chrzanowski, G. A. Wurden, P. H. Probert, S. Ramakrishnan, S. C. Luckhardt, M. H. Redi, R.J. Maqueda, W. R. Blanchard, Richard Ellis, M. Kalish, S. J. Diem, J.M. Bialek, Fred Levinton, E. Mazzucato, A. H. Glasser, Stephen Jardin, Robert James Goldston, A. von Halle, R. Kaita, T. Peebles, John B Wilgen, Michael W Kissick, David W. Johnson, D. Pacella
Research on the Spherical Torus (or Spherical Tokamak) is being pursued to explore the scientific benefits of modifying the field line structure from that in more moderate aspect-ratio devices, such as the conventional tokamak. The Spherical Tours (S
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::26b23401008af29290a06a08a93d9dab
https://doi.org/10.2172/820078
https://doi.org/10.2172/820078
Autor:
Aaron Sontag, C. Wilson, T. Thorson, Thomas Intrator, G.R. Winz, B.T. Lewicki, G.D. Garstka, R.J. Fonck, K. Tritz
Publikováno v:
AIP Conference Proceedings.
Radio Frequency auxiliary heating for Low Aspect Ratio Tokamaks can facilitate startup and access to high energy density plasmas, reduce the demand on ohmic core volt-seconds, and provide off axis electron heating for a high βe plasma. Calculations
Publikováno v:
Nuclear Fusion. 48:095006
Equilibrium reconstructions of low-aspect ratio (A < 1.3) discharges in the Pegasus toroidal experiment have been performed. Magnetic diagnostics are used for equilibrium constraint and a filament code is used to estimate the significant currents flo
Publikováno v:
Review of Scientific Instruments. 72:430-430
Magnetic equilibrium reconstruction on the PEGASUS toroidal experiment is a crucial tool to determine macroscopic plasma parameters, such as geometry, li, βt, and qψ. These parameters are tightly coupled to the plasma shape due to the very high tor