Results 91 to 100 of about 302,060 (167)

Geometric Burn Control For Tokamaks [PDF]

A new burn control scheme for tokamaks is described where the total fusion power is controlled by adjusting the plasma volume fraction that is packed into power dense regions.
Berkery, J. W., Kaye, S. M., Dickinson, D., Myatra, O., Wilson, H. R., Romanelli, M., Dnestrovskii, A., Dominski, J., Janhunen, S., Hardman, M. R., Parisi, J. F., Diallo, A., Ball, J. R., Hansen, C., Guizzo, S., Anastopoulos-Tzanis, M., Guttenfelder, W., Sladkomedova, A., Nelson, A. O., McNamara, S. A. M.   +19 more
core   +1 more source

The impact of kinetic and global effects on ideal ballooning 2nd stable pedestals of conventional and low aspect-ratio tokamaks

Nuclear Fusion
The EPED model (Snyder et al 2011 Nucl. Fusion 51 103016) has had success in describing the pedestal structure of Type-I ELM and QH-mode plasmas in tokamaks, by combining kinetic ballooning mode (KBM) and peeling–ballooning (PB) constraints. Within EPED,
M.S. Anastopoulos Tzanis, M. Yang, A. Kleiner, J.F. Parisi, G.M. Staebler, P.B. Snyder   +5 more
doaj   +1 more source

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

Density Limits as Disruption Forecasters for Spherical Tokamaks

, 2023
Fusion power output from spherical tokamaks would benefit from increased confined plasma density, but there exists a limit on the density before confinement is lost and the plasma current is disrupted.
Berkery, John
core  

Stabilization of ion-scale electrostatic drift-type modes with decreasing aspect ratio through major or minor radius in tokamaks

Nuclear Fusion
In the conventional tokamak with a high aspect ratio ( A ), turbulent transport is known to be dominated by the ion-scale electrostatic drift-type modes, such as the ion temperature gradient (ITG) or trapped electron mode (TEM). When tokamak type changes
J.Y. Kim, H.S. Han
doaj   +1 more source

Modeling temperature profiles in the pedestal of NSTX with reduced models

Nuclear Fusion
This paper describes new modeling capabilities for predicting H-mode pedestal profiles in spherical tokamaks. Temperature profiles for NSTX discharges 132543 (narrow pedestal) and 132588 (wide pedestal, lithiated) are modeled by coupling the astra ...
P.-Y. Li, D.R. Hatch, L.A. Leppin, J. Schmidt, J.F. Parisi, M. Lampert, M. Kotschenreuther, S.M. Mahajan   +7 more
doaj   +1 more source

Theory and Simulations of Compressional and Global Alfven Eigenmode Stability in Spherical Tokamaks

, 2020
Neutral-beam-driven, sub-cyclotron compressional (CAE) and global (GAE) Alfven eigenmodes are routinely excited in spherical tokamaks such as NSTX(-U) and MAST, have been observed on the conventional aspect ratio tokamak DIII-D, and may be unstable in ...
Lestz, Jeff
core  

Application of the Scrape-Off-Layer Fast Ion (SOLFI) code to assess particle motion in mirrors and tokamaks [PDF]

This paper introduces the Scrape-Off-Layer Fast Ion (SOLFI) code, which is a new and versatile full-orbit Monte Carlo particle tracer developed to follow fast ion orbits inside and outside the separatrix in tokamaks.
Rondini, L., Lopez, N. A., Zhang, X., Nelson, A. O., Poli, F. M.   +4 more
core   +1 more source

Linear and quasi-linear modeling in view of ELM control in MAST-U including effects of error fields

Nuclear Fusion
Edge localized modes (ELMs) pose a critical challenge to the safety and performance of plasma-facing components in tokamaks due to their periodic expulsion of heat and particles.
E. Tomasina, M.J. Markl, L. Pigatto, D. Ryan, A. Kirk, C.G. Albert, E. Viezzer, Y.Q. Liu, T. Bolzonella, MAST-U Team, the EUROfusion Tokamak Exploitation Team   +10 more
doaj   +1 more source

A Neutron Source Based on Spherical Tokamak

Energies
The paper presents a conceptual study of a neutron source based on a spherical tokamak (ST). The plasma scenario chosen for the ST is non-thermal fusion (hot ion mode), which is extensively used on machines like JET and TFTR deuterium–tritium (DT) experiments, which seems suited for low fusion gain reactors.
Francesco P. Orsitto, Nunzio Burgio, Marco Ciotti, Guglielmo Lomonaco, Fabio Panza, Alfonso Santagata   +5 more
openaire   +2 more sources