Results 1 to 10 of about 1,463,568 (229)

Modelling the capacitance of the elongated plasma in tokamak [PDF]

Scientific Reports, 2023
The capacitance model suitable for the non-circular cross-section plasma is studied based on the capacitance model of the circular cross-section plasma.
Pengcheng Miao, Ge Li, Song Zhang, Zhiyuan Weng, Yu Wu, Zemin Duan   +5 more
doaj   +4 more sources

Molecular dynamics of deuterium plasma on TiB₂ sputtering in tokamak wall surfaces for Shannon entropy of computation [PDF]

Scientific Reports
Maintaining the plasma core process for generating heat energy—which a turbine uses to generate electricity-is the major objective of creating Tokamak reactor fusion technology.
Alper Pahsa
doaj   +2 more sources

Tailoring tokamak error fields to control plasma instabilities and transport [PDF]

Nature Communications
A tokamak relies on the axisymmetric magnetic fields to confine fusion plasmas and aims to deliver sustainable and clean energy. However, misalignments arise inevitably in the tokamak construction, leading to small asymmetries in the magnetic field known
SeongMoo Yang, Jong-Kyu Park, YoungMu Jeon, Nikolas C. Logan, Jaehyun Lee, Qiming Hu, JongHa Lee, SangKyeun Kim, Jaewook Kim, Hyungho Lee, Yong-Su Na, Taik Soo Hahm, Gyungjin Choi, Joseph A. Snipes, Gunyoung Park, Won-Ha Ko   +15 more
doaj   +2 more sources

A High-Density and High-Confinement Tokamak Plasma Regime for Fusion Energy [PDF]

Nature
Siye Ding, Ivo S Carvalho, Qiming Hu
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

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

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

Perturbative analysis of low-frequency instabilities in high-field ST40 experiments

Nuclear Fusion, 2023
Linear and nonlinear perturbative analyses of low-frequency instabilities are presented for ST40 spherical torus high field plasmas, with simultaneous neutral beam heating due to two tangential sources at 25 keV and 55 keV.
V.N. Duarte, N.N. Gorelenkov, S.M. Kaye, P.J. Bonofiglo, M. Podestà, J. Bland, P. Buxton, M. Gryaznevich, M. Romanelli, M. Sertoli   +9 more
doaj   +1 more source

Modification of visible spectrometer of Damavand tokamak and study of plasma impurities [PDF]

مجله علوم و فنون هسته‌ای, 2023
Plasma impurities are one of the loss factors of confined energy in tokamaks, so from this regard their study in order to maintain the stability of tokamak plasma and improve the confinement quality is essential.
Z. Gholami Sarrak, M.R. Abdi, B. Pourshahab, Ch. Rasouli   +3 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