Results 21 to 30 of about 139,527 (303)

Further upgrades of the ASDEX Upgrade ICRF system [PDF]

EPJ Web of Conferences
The original plans were to operate the tokamak ASDEX Upgrade (AUG) for ten years. The flexibility of the experiment lead to the fact, that AUG is now operating for over three decades.
Faugel Helmut, Bobkov Volodymyr, Schmidt Alexander Benjamin, Peglau Matthias, Helou Walid, Mulzer Roger, Fünfgelder Helmut, Girka Oleksii, Ochoukov Roman, Mendelevitch Boris   +9 more
doaj   +1 more source

Novel concept suppressing plasma heat pulses in a tokamak by fast divertor sweeping

Scientific Reports, 2022
One of the remaining challenges in magnetic thermonuclear fusion is survival of the heat shield protecting the tokamak reactor vessel against excessive plasma heat fluxes.
J. Horacek, S. Lukes, J. Adamek, J. Havlicek, S. Entler, J. Seidl, J. Cavalier, J. Cikhardt, V. Sedmidubsky   +8 more
doaj   +1 more source

Mapping of force field in a capacitively driven rf plasma discharge [PDF]

, 2016
In this paper a method is described that allows mapping of the forces acting on dust particles in a GEC reference cell. Monodisperse particles are dropped into the plasma environment and their trajectories are tracked using a high-speed camera system to ...
Sabo, Hannah, Dropmann, Michael., Laufer, Rene, Matthews, Lorin Swint., Herdrich, Georg, Chen, Mudi, Herdrich, Georg., Hyde, Truell Wayne., Dropmann, Michael, Matthews, Lorin, Laufer, René., Hyde, Truell W., Chen, Mudi, 1985-, Sabo, Hannah.   +13 more
core   +1 more source

Study on the Applicability of Neutron Radiation Damage Method Used for High-Temperature Superconducting Tape Based on Geant4 and SRIM

Science and Technology of Nuclear Installations, 2021
High-temperature superconducting material is a promising candidate to fabricate superconducting magnet for magnetic confinement fusion reactors. The DPA number of the 1 µm thick superconducting layer in a high temperature superconducting tape under ...
Ying Zheng, Jinxing Zheng, Xudong Wang
doaj   +1 more source

ECRH scenarios with selective heating of trapped/passing electrons in the W7-X Stellarator

EPJ Web of Conferences, 2015
Using specific features of the magnetic equilibrium in the W7-X stellarator, the ECRH scenarios with combined X2 and X3 modes are discussed. The RF beams for operation with X2 and X3 modes need to be launched from low- and, via the remote steering ...
Marushchenko N.B., Beidler C.D., Erckmann V., Geiger J., Helander P., Laqua H.P, Maassberg H., Turkin Y.   +7 more
doaj   +1 more source

Self-consistent nonlinear kinetic simulations of the anomalous Doppler instability of suprathermal electrons in plasmas [PDF]

, 2013
Suprathermal tails in the distributions of electron velocities parallel to the magnetic field are found in many areas of plasma physics, from magnetic confinement fusion to solar system plasmas.
R. O. Dendy, Lai, W. N., Dendy, R. O., S. C. Chapman, W. N. Lai, Chapman, Sandra C.   +5 more
core   +1 more source

Recent Progress in ICRF Experiments on the Experimental Advanced Superconducting Tokamak (EAST) [PDF]

EPJ Web of Conferences
Ion Cyclotron Range of Frequency (ICRF) heating is a major auxiliary heating method used on the Experimental Advanced Superconducting Tokamak (EAST). This paper summarizes recent progress in ICRF experiments on EAST, including the upgrade of ICRF heating
Zhang Wei, Antar Ghassan, Cheng Yan, Deng Xu, Ju Songqing, Kazakov Yevgen, Liu Lunan, Mao Yuzhou, Ongena Jozef, Qin Chengming, Wang Lei, Wang Yongsheng, Wouters Tom, Yang Hua, Yuan Shuai, Zhang Kai, Zhang Xinjun   +16 more
doaj   +1 more source

Spectral and temporal behavior of an alkali metal plasma extreme ultraviolet source for surface morphology applications [PDF]

, 2011
We have characterized the emission spectrum and temporal history of a pure potassium plasma in a capillary discharge. Strong broadband emission was observed around 40 nm due to 3s−3p, 3p−3d, and 3d−4f transitions in ions ranging from K2+ to K4+ at a time-
Noboru Yugami, Takamitsu Otsuka, Yugami, Noboru, Terauchi, Hiromitsu, Yamaguchi, Mami, O'Sullivan, Gerry, D\u27Arcy, Rebekah, Higashiguchi, Takeshi, Yatagai, Toyohiko, Mami Yamaguchi, Dunne, Padraig, O\u27Sullivan, Gerry, D'Arcy, Rebekah, Toyohiko Yatagai, Hiromitsu Terauchi, Rebekah D’Arcy, Padraig Dunne, Takeshi Higashiguchi, Gerry O’Sullivan, Otsuka, Takamitsu   +19 more
core   +1 more source

Experimental Investigations of Magnetohydrodynamic Plasma Jets [PDF]

, 2009
This thesis primarily focuses on understanding the plasma behavior during the helicity injection stage of a pulsed spheromak experiment. Spheromak formation consists of a series of dynamic steps whereby highly localized plasma near the electrodes evolves
Kumar, Deepak
core   +1 more source

Predictions of core plasma performance for the SPARC tokamak [PDF]

, 2020
Submitted for publication in Journal of Plasma PhysicsSPARC is designed to be a high-field, medium-size tokamak aimed at achieving net energy gain with Ion Cyclotron Range-of-Frequencies (ICRF) as its primary auxiliary heating mechanism.
Wright, John C., Holland, C., Rodriguez Fernandez, Pablo, SPARC Team, Creely, A.J., Howard, Nathan T., Greenwald, M.J., Lin,Y., Sciortino, Francesco, Hughes, Jerry W.   +9 more
core   +1 more source