Results 1 to 10 of about 91,695 (160)

Magnetic control of tokamak plasmas through deep reinforcement learning

Nature, 2022
Nuclear fusion using magnetic confinement, in particular in the tokamak configuration, is a promising path towards sustainable energy. A core challenge is to shape and maintain a high-temperature plasma within the tokamak vessel.
Brendan Tracey, Roland Hafner, Andrea Huber   +2 more
exaly   +2 more sources

Integration of fiber Bragg grating temperature sensors in plasma facing components of the WEST tokamak

Review of Scientific Instruments, 2018
Plasma Facing Components (PFC) temperature measurement is mandatory to ensure safe high power and long pulse tokamak operation. IR thermography systems which are widely used in magnetic fusions devices become challenged with the choice of tungsten as a ...
Jean-laurent Gardarein, M Firdaouss, Y Corre   +2 more
exaly   +2 more sources

Designing a tokamak fusion reactor—How does plasma physics fit in?

Physics of Plasmas, 2015
This paper attempts to bridge the gap between tokamak reactor design and plasma physics. The analysis demonstrates that the overall design of a tokamak fusion reactor is determined almost entirely by the constraints imposed by nuclear physics and fusion ...
J P Freidberg
exaly   +2 more sources

JINTRAC: A System of Codes for Integrated Simulation of Tokamak Scenarios

Plasma and Fusion Research, 2014
Operation and exploitation of present and future Tokamak reactors require advanced scenario modeling in order to optimize engineering parameters in the design phase as well as physics performance during the exploitation phase.
S Wiesen, R Ambrosino, L Garzotti
exaly   +2 more sources

Numerical Solutions to the Grad–Shafranov Equation for Studying Plasma Equilibrium of Alvand Tokamak [PDF]

فیزیک کاربردی ایران, 2023
Alvand tokamak is a small-sized research tokamak for magnetically confined plasma studies. The plasma cross-section of this tokamak is circular, and its simpler structure compared to tokamaks with an elongated cross-section allows for more fundamental ...
Chapar Rasouli, Banafsheh Pourshahab
doaj   +1 more source

The progress and current status of Tokamak: a systematic review [PDF]

E3S Web of Conferences, 2021
Nuclear fusion energy is an ideal energy source for the future due to the clean and efficient features, first proposed by Russian scientists in the 1950s.
Song Yuxuan
doaj   +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

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

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