Results 71 to 80 of about 321,964 (214)

Overview of the MAST Upgrade physics programme: testing novel concepts at low aspect ratio to inform future devices

Nuclear Fusion
The research programme performed on the Mega Amp Spherical Tokamak (MAST) Upgrade experiment has made significant advances in developing the physics understanding of low aspect ratio tokamaks in support of the operation of ITER and design of fusion ...
J.R. Harrison, A. Aboutaleb, M. Aljunid, S.Y. Allan, R. Allan, A. Alli, H. Anand, Y. Andrew, L.C. Appel, A. Ash, J. Ashton, F. Auriemma, O. Bachmann, S. Bakes, P. Balazs, O. Bardsley, M. Barnes, B. Barrett, D. Baver, C. Beckley, J. Bennett, J. Bentley, J. Berkery, M. Bernert, N. Bertelli, P. Bilkova, S. Blackmore, A. Bock, W. Boeglin, P. Bohm, J. Booth, A. Bosnjak, C. Bowman, J. Bradley, L. Bramucci, D. Brida, M. Brix, P.K. Browning, D. Brunetti, P. Bryant, J. Bryant, J. Buchanan, M. Bull, M. Bulman, N. Bulmer, D. Burke, P. Cahill, P. Cano-Megías, M. Carpita, A. Carruthers, L. Casali, A. Cassidy, F. Causa, M. Cecconello, A. Celora, M. Cha, B. Chamberlain, B. Chapman, B. Chapman-Oplopoiou, R. Chazal, X. Chen, J. Clark, M. Clark, T. Clayton, K. Collie, D. Collishaw-Schepman, J.W. Connor, M. Coy, S. Cramp, N. Crocker, D. Cruse, G. Cunningham, M. Czarski, I. Cziegler, Y. Damizia, P. Davies, K. Davies, I. Day, E. Delabie, G.L. Derks, S. Dixon, J. Dobrashian, M. Dreval, X. Du, H. Dudding, D. Dunai, M. Dunne, F. Ebrahimi, J. Edmond, J. Edwards, H. El-Haroun, S. Elmore, Y. Enters, M. Faitsch, F. Federici, N. Fedorczak, F. Felici, N. Ferraro, A.R. Field, P. Figueiredo, I. FitzGerald, M. Fitzgerald, R. Fitzpatrick, C. Fitzpatrick, S. Frankel, L. Frassinetti, D. Frattolillo, S. Freethy, W. Fuller, R. Futtersack, S. Gabriellini, K. Gage, J. Galdon, J. Galdon-Quiroga, M. Gambrioli, C. Garner, L. Garzotti, T.E. Gheorghiu, K.J. Gibson, C. Gibson, E. Giovannozzi, C. Giroud, J. Goatley, A. Goodyear, M. Gorelenkova, S. Gosden, G. Grassler, J.P. Graves, D. Greenhouse, R. Griffiths, V.H. Hall-Chen, C.J. Ham, E. Harrington, R. Harrison, A. Haupt, J. Hawes, S. Hegedus, S.S. Henderson, C. Heo, C. Hickling, M. Hill, B. Hnat, C. Hogben, B. Honey, L. Howlett, Z. Huang, A. Hudoba, J. Hughes, R. Hussain, K. Imada, P. Ivanov, A. Jackson, P. Jacquet, F. Jaulmes, P. Jepson, T. Jones, P. Jones, M. Juvonen, V. Kachkanov, B. Kandan, I. Katramados, S. Kaye, Y.O. Kazakov, D. Keeling, D. Kennedy, A. Kenny, H-T. Kim, D. King, R. King, A. King, V. Kiptily, A. Kirjasuo, A. Kirk, A. Kit, A. Kleiner, M. Knolker, S. Kobussen, M. Kochan, L. Kogan, B. Kool, D. Kos, M. Kotschenreuther, M. Lampert, A. Lawson, K. Lawson, K.-W. Lee, G. Lee, J. Lee, M. Lees, S. Leigh, A.W. Leonard, G. Liddiard, B. Lipschultz, E. Litherland-Smith, Y.Q. Liu, B.A. Lomanowski, J. Lombardo, N. Lonigro, J. Lore, J. Lovell, R. Lucock, T. Luong, A. Lvovskiy, J. Macdonald, T. Macwan, S. Mahajan, F. Maiden, R. Maingi, C. Man-Friel, F. Mansfield, M. Markl, S. Marsden, R. Martin, R. Mathew, R. Maurizio, U. Mazzarese, S. Mazzi, R. McAdams, G. McArdle, J. McBride, K. McClements, J. McClenaghan, D. McConville, K. McKay, C. McKnight, P. McKnight, A. McLean, B.F. McMillan, A. McShee, J. Measures, N. Mehay, S. Menmuir, H.F. Meyer, C.A. Michael, F. Militello, I.G. Miron, R. Mishra, J. Mitchell, D. Moiraf, P. Monaghan, R. Mooney, N. Mooring, R. Morales Gomes, D. Morbey, S. Mordijck, C. Morgan, J. Morris, D. Moulton, S. Munaretto, A. Munasinghe, A. Muraro, O. Myatra, Y.-S. Na, T.F. Neiser, A.O. Nelson, S.L. Newton, M. Nicassio, M.G. O’Mullane, C. Olde, H.J. Oliver, P. Ollus, J. Omotani, M. Ono, F.P. Orsitto, R. Osawa, N. Osborne, T. Osborne, R. Otin, E. Ozturk, F. Palermo, A. Pankin, I. Paradela Pérez, J. Parisi, E. Parr, B. Parry, B.S. Patel, E. Pawelec, D. Payne, C. Paz-Soldan, A. Phelps, L. Piron, C. Piron, G. Pokol, R. Preece, M. Price, B. Pritchard, R. Proudfoot, G. Pucella, T. Pumfrett, D.-Y. Pyo, H. Reimerdes, T. Rhodes, E. Ribeiro, D. Rigamonti, J. Riquezes, J.F. Rivero-Rodriguez, J. Roberts, M. Robson, K. Ronald, E. Rose, D. Ryan, P. Ryan, S. Saarelma, S. Sabbagh, A. Salmi, R. Sarwar, P. Saunders, O. Sauter, R. Scannell, R. Sealey, R. Seath, S. Sharapov, R. Sharma, H. Sheikh, S. Shiraiwa, B. Sieglin, S.A. Silburn, M. Simmonds, J. Simpson, A. Sladkomedova, J. Smith, P. Smith, M. Sos, V.A. Soukhanovskii, D. Speirs, C. Srinivasan, G. Staebler, R. Stephen, P. Stevenson, J. Stobbs, C. Stroud, H. Sun, H. Sun, G. Szepesi, D.M. Takács, T. Tala, C. Tame, C. Theiler, B. Thomas, S. Thomas, S. Thomas, N. Thomas-Davies, A.J. Thornton, A. Tilley, I. Tirkova, M. Tobin, E. Tomasina, A. Tonel, P. Tonner, A. Tookey, G. Tvalashvili, M. Vallar, M. Valovic, R.G.L. Vann, L. Velarde, L. Velarde, K. Verhaegh, E. Viezzer, C. Vincent, M. Walsh, T. Walsh, M. Warr, S. Wiesen, T.A. Wijkamp, D. Wilkins, J. Willis, T. Wilson, H.R. Wilson, N. Winston, G. Withenshaw, H. Wong, M. Wood, R. Worrall, Q. Xia, G. Xia, L. Xiang, G. Xiang, T. Xu, J.H. Yu, V. Zamkovska, M. Zerbini, V.K. Zotta, M. Zurita, L.E. di Grazia   +383 more
doaj   +1 more source

A h‐Adaptivity Strategy for Hybridizable Discontinuous Galerkin (HDG) Simulations of Fluid Transport Models in Tokamak Plasma

International Journal for Numerical Methods in Engineering, Volume 126, Issue 17, 15 September 2025.
ABSTRACT The highly anisotropic, multi‐scale nature of fusion plasma simulations in tokamaks, combined with the complexity in the geometries of plasma‐facing components and magnetic equilibrium, challenges numerical schemes. They therefore require the development of advanced numerical techniques to enhance computational efficiency and enable codes to ...
Marcello Capasso, Ivan Kudashev, Frédéric Schwander, Éric Serre   +3 more
wiley   +1 more source

Profile control for an Alternative Spherical Tokamak

, 1996
Magnetically driven plasma guns that are inserted around a flux conserver at definite angular intervals are considered. The creation and the control of plasma channels are examined.
Sinman, A, Sinman, S
core   +1 more source

Measurements of Auroral Plasma Properties Using Low‐Cost, Mobile, Ground‐Based Detectors

Earth and Space Science, Volume 12, Issue 9, September 2025.
Abstract An expedition to Fairbanks, AK, was undertaken to study the aurora during the peak of solar cycle 25. Low‐cost diagnostics were developed to enable ground‐based measurements of ionospheric plasma parameters and auroral phenomena, namely a compact spectrometer and a high‐resolution all‐sky camera with 2‐axis magnetometer. Observations were made
S. Mackie, J. Rivera, T. Evans, J. L. Ball, S. Dannhoff, J. Heinzel, J. Van de Lindt, S. Moroch   +7 more
wiley   +1 more source

Computation of Three Dimensional Tokamak and Spherical Torus Equilibria [PDF]

, 2007
A nominally axisymmetric plasma con guration, such as a tokamak or a spherical torus, is highly sensitive to non-axisymmetric magnetic perturbations due to currents outside of the plasma.
Jong-kyu Park, Allen H. Boozer, and Alan H. Glasser
core  

Spectroscopic Measurement of Hydrogen Atom Density in a Plasma Produced with 28 GHz ECH in QUEST

Atoms, 2020
The spatial distribution of the hydrogen atom density was evaluated in a spherical tokamak (ST) plasma sustained only with 28 GHz electron cyclotron heating (ECH). The radially resolved Hδ emissivity was measured using multiple viewing chord spectroscopy
Satoru Mori, Taiichi Shikama, Kazuaki Hanada, Nao Yoneda, Arseniy Kuzmin, Masahiro Hasuo, Hiroshi Idei, Takumi Onchi, Akira Ejiri, Yuki Osawa, Yi Peng, Kyohei Matsuzaki, Shinichiro Kado, Keiji Sawada, Takeshi Ido, Kazuo Nakamura, Ryuya Ikezoe, Yoshihiko Nagashima, Makoto Hasegawa, Kengo Kuroda, Aki Higashijima, Takahiro Nagata, Shun Shimabukuro   +22 more
doaj   +1 more source

Fast and Invertible Simplicial Approximation of Magnetic‐Following Interpolation for Visualizing Fusion Plasma Simulation Data

Computer Graphics Forum, Volume 44, Issue 3, June 2025.
Abstract We introduce a fast and invertible approximation for fusion plasma simulation data represented as 2D planar meshes with connectivities approximating magnetic field lines along the toroidal dimension in deformed 3D toroidal spaces. Scientific variables (e.g., density and temperature) in these fusion data are interpolated following a complex ...
Congrong Ren, Robert Hager, Randy Michael Churchill, Albert Mollén, Seung‐Hoe Ku, Choong‐Seock Chang, Hanqi Guo   +6 more
wiley   +1 more source

Fully non-inductive plasma start-up with lower-hybrid waves using the outboard-launch and top-launch antennas on the TST-2 spherical tokamak

EPJ Web of Conferences, 2017
Removal of the central solenoid is essential to realize an economical spherical tokamak fusion reactor, but non-inductive plasma start-up is a challenge. On the TST-2 spherical tokamak, non-inductive plasma start-up using lower-hybrid (LH) waves has been
Tsujii Naoto, Takase Yuichi, Ejiri Akira, Shinya Takahiro, Yajima Satoru, Yamazaki Hibiki, Togashi Hiro, Moeller Charles P., Roidl Benedikt, Takahashi Wataru, Toida Kazuya, Yoshida Yusuke   +11 more
doaj   +1 more source

Self‐Organized Growth of Catalyst‐Free Single Crystal WnO3n‐2 (n = 25) Nanowire Bundles on Si (111) via Selective He+ Ion Irradiation

Advanced Materials Interfaces, Volume 12, Issue 10, May 19, 2025.
A novel and efficient method is explored to synthesize 1D single‐crystal sub‐stoichiometric WnO3n‐2 (n = 25) nanowire bundles. The approach utilizes selective low‐energy He+ ion irradiation (27 eV) on Mo‐Ni doped WOx surface, achieving efficient catalyst‐free self‐organized growth of high aspect ratio nanowires at the temperature of 700 °C.
Maryna Bilokur, Matt Thompson, Matthew Arnold, Cormac Corr   +3 more
wiley   +1 more source

Beam ion driven instabilities in the National Spherical Tokamak Experiment [PDF]

, 2004
Low and high frequency beam ion driven instabilities in the National Spherical Tokamak Experiment (NSTX) plasma were analyzed. Low frequency magnetohydrodynamics (MHD) activities in ∼100 kHz frequency range on NSTX were often observed and identified as ...
N. N. Gorelenkov, Fredrickson, E, E. Fredrickson, G. J. Kramer, Cheng, CZ, W. W. Heidbrink, Kaye, S, S. Kaye, Gorelenkov, NN, Belova, E, Heidbrink, WW, H. L. Berk, Berk, HL, E. Belova, Kramer, GJ, C. Z. Cheng   +15 more
core   +1 more source