Results 11 to 20 of about 116,100 (253)

Recent progress in Chinese fusion research based on superconducting tokamak configuration

Innovation (Cambridge (Mass.)), 2022
Fusion energy is a promising source of clean energy, which could solve energy shortages and environmental pollution. Research into controlled fusion energy has been ongoing for over half a century.
Jinxing Zheng, J. Qin, K. Lu, Min Xu, X. Duan, Guosheng Xu, Jiansheng Hu, X. Gong, Qing Zang, Zhihong Liu, Liang Wang, R. Ding, Jiming Chen, Pengyuan Li, L. Xue, L. Cai, Yuntao Song   +16 more
semanticscholar   +1 more source

Pulsed Spherical Tokamak—A New Approach to Fusion Reactors

Plasma, 2022
Traditionally, spherical tokamak (ST) reactors are considered to operate in a steady state. This paper analyses the advantages of a pulsed ST reactor.
Mikhail Gryaznevich, Valery A. Chuyanov, Yuichi Takase   +2 more
doaj   +1 more source

DTT - Divertor Tokamak Test facility: A testbed for DEMO

Fusion engineering and design, 2021
The effective treatment of the heat and power exhaust is a critical issue in the road map to the realization of the fusion energy. In order to provide possible, reliable, well assessed and on-time answers to DEMO, the Divertor Tokamak Test facility (DTT)
R. Ambrosino
semanticscholar   +1 more source

Fusion pilot plant performance and the role of a sustained high power density tokamak

Nuclear Fusion, 2022
Recent U.S. fusion development strategy reports all recommend that the U.S. should pursue innovative science and technology to enable construction of a fusion pilot plant (FPP) that produces net electricity from fusion at low capital cost.
J. Menard, B. Grierson, T. Brown, C. Rana, Y. Zhai, F. Poli, R. Maingi, W. Guttenfelder, P. Snyder   +8 more
semanticscholar   +1 more source

Spectroscopic evaluation of vibrational temperature and electron density in reduced pressure radio frequency nitrogen plasma

SN Applied Sciences, 2021
The optical emission spectroscopy technique is used to determine the vibrational temperature of the second positive band system, $$ N_{2} (C,\upsilon^{^{\prime}} - B,\upsilon^{^{\prime\prime}}$$ N 2 ( C , υ ′ - B , υ ″ ) in the wavelength range 367.1–380.
Hira Fatima, M. Usman Ullah, S. Ahmad, Mubashair Imran, S. Sajjad, S.Hussain, A. Qayyum   +6 more
doaj   +1 more source

Comparisons and physics basis of tokamak transport models and turbulence simulations

Physics of Plasmas, 2000
A M Dimits, William Dorland, Gregory W Hammett   +2 more
exaly   +2 more sources

Achievement of ion temperatures in excess of 100 million degrees Kelvin in the compact high-field spherical tokamak ST40

Nuclear Fusion, 2023
Ion temperatures of over 100 million degrees Kelvin (8.6 keV) have been produced in the ST40 compact high-field spherical tokamak (ST). Ion temperatures in excess of 5 keV have not previously been reached in any ST and have only been obtained in much ...
S.A.M. McNamara, O. Asunta, J. Bland, P.F. Buxton, C. Colgan, A. Dnestrovskii, M. Gemmell, M. Gryaznevich, D. Hoffman, F. Janky, J.B. Lister, H.F. Lowe, R.S. Mirfayzi, G. Naylor, V. Nemytov, J. Njau, T. Pyragius, A. Rengle, M. Romanelli, C. Romero, M. Sertoli, V. Shevchenko, J. Sinha, A. Sladkomedova, S. Sridhar, Y. Takase, P. Thomas, J. Varje, B. Vincent, H.V. Willett, J. Wood, D. Zakhar, D.J. Battaglia, S.M. Kaye, L.F. Delgado-Aparicio, R. Maingi, D. Mueller, M. Podesta, E. Delabie, B. Lomanowski, O. Marchuk, the ST40 Team   +41 more
doaj   +1 more source

Overview of the SPARC tokamak

Journal of Plasma Physics, 2020
The SPARC tokamak is a critical next step towards commercial fusion energy. SPARC is designed as a high-field ($B_0 = 12.2$ T), compact ($R_0 = 1.85$ m, $a = 0.57$ m), superconducting, D-T tokamak with the goal of producing fusion gain $Q>2$ from a ...
A. Creely, M. Greenwald, S. Ballinger, D. Brunner, J. Canik, J. Doody, T. Fülöp, D. Garnier, R. Granetz, T. Gray, C. Holland, N. Howard, J. Hughes, J. Irby, V. Izzo, G. Kramer, A. Kuang, B. LaBombard, Yu-Ming Lin, B. Lipschultz, N. Logan, J. Lore, E. Marmar, K. Montes, R. Mumgaard, C. Paz-Soldan, C. Rea, M. Reinke, P. Rodriguez-Fernandez, K. Särkimäki, Flavien Sciortino, S. Scott, A. Snicker, P. Snyder, B. Sorbom, R. Sweeney, R. Tinguely, E. Tolman, M. Umansky, O. Vallhagen, J. Varje, D. Whyte, J. Wright, S. Wukitch, J. Zhu   +44 more
semanticscholar   +1 more source

Interplay between beam-driven chirping modes and plasma confinement transitions in spherical tokamak ST40

Nuclear Fusion, 2022
Experiments on the high field spherical tokamak ST40 have led to the recent observation of interplay between beam-driven modes of sweeping frequency (chirping modes) and transitions to the enhanced global confinement regime (H-mode) and back to the low ...
J. Bland, J. Varje, N.N. Gorelenkov, M.P. Gryaznevich, S.E. Sharapov, J. Wood, Team The ST40   +6 more
doaj   +1 more source

Theoretical–Computational Study of Atmospheric DBD Plasma and Its Utility for Nanoscale Biocompatible Plasmonic Coating

Molecules, 2021
In this study, time-dependent, one-dimensional modeling of a surface dielectric barrier discharge (SDBD) device, driven by a sinusoidal voltage of amplitude 1–3 kV at 20 kHz, in argon is described. An SDBD device with two Cu-stripe electrodes, covered by
Taj Muhammad Khan, Shahab Ud-Din Khan, Muhammad Raffi, Riaz Khan   +3 more
doaj   +1 more source