Results 21 to 30 of about 3,494,280 (302)

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

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

A treecode to simulate dust-plasma interactions [PDF]

, 2016
The interaction of a small object with surrounding plasma is an area of plasma-physics research with a multitude of applications. This paper introduces the plasma octree code pot , a microscopic simulator of a spheroidal dust grain
Holgate, JT, Thomas, DM
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

Insights into type‐I edge localized modes and edge localized mode control from JOREK non‐linear magneto‐hydrodynamic simulations

, 2018
Edge localized modes (ELMs) are repetitive instabilities driven by the large pressure gradients and current densities in the edge of H-mode plasmas. Type-I ELMs lead to a fast collapse of the H-mode pedestal within several hundred microseconds to a few ...
Pamela, S., Huijsmans, G., Huijsmans, G. T. A.,, EUROfusion MST1 Team, F. Liu, Krebs, I.,, Orain, F., Trier, E.,, Dunne, M., Futatani, S., Pamela, S.,, G.T.A. Huijsmans, A. Lessig, Orain, F.,, Lackner, K., Artola, F.J., K. Lackner, Guenter, S.,, Liu, F., Artola, F. J., S. Guenter, Trier, E., Huijsmans, G.T.A., Eich, T., F. Mink, Artola, F., I. Krebs, Vanovac, B., Hoelzl, M., null null, Wolfrum, E.,, Futatani, S.,, Wolfrum, E., Hoelzl, M.,, T. Eich, E. Viezzer, Vanovac, B.,, Mink, F., Krebs, I., Huijsmans, G. T. A., Frassinetti, L., M. Hoelzl, Artola, F. J.,, E. Wolfrum, Mink, F.,, Dunne, M.,, Becoulet, M.,, Hölzl, M., Lessig, A., Lackner, K.,, S. Pamela, B. Vanovac, van Vugt, D.,, M. Dunne, Gunter, S., E. Trier, Eich, T.,, L. Frassinetti, Lessig, A.,, Frassinetti, Lorenzo,, Viezzer, E.,, ASDEX Upgrade Team, F. Orain, Vugt, D., Liu, F.,, Viezzer, E., D. van Vugt, van Vugt, D., S. Futatani, M. Becoulet, F.J. Artola, Guenter, S., Becoulet, M.   +72 more
core   +1 more source

Mini-conference and related sessions on laboratory plasma astrophysics [PDF]

, 2004
This paper provides a summary of some major physics issues and future perspectives discussed in the Mini-Conference on Laboratory Plasma Astrophysics. This mini-conference, sponsored by the Topical Group on Plasma Astrophysics, was held as part of the ...
Hantao Ji, Li, Hui, Hsu, Scott C., Brown, Michael R., R. Paul Drake, Ji, Hantao, Hsu, S. C., Drake, R. P., Scott C. Hsu, Michael Brown, Brown, Michael, Drake, R. Paul, Ji, H., Li, H., Hui Li   +14 more
core   +1 more source

The role of rectified currents in far-field RF sheaths and in SOL losses of HHFW power on NSTX

Nuclear Materials and Energy, 2017
Radio-frequency (RF) rectification is an important sheath phenomenon for wave heating of plasma in fusion devices and is proposed to be the mechanism responsible for converting high-harmonic fast-wave (HHFW) power in the National Spherical Torus ...
R.J. Perkins, J.C. Hosea, M.A. Jaworski, R.E. Bell, N. Bertelli, G.J. Kramer, L. Roquemore, G. Taylor, J.R. Wilson   +8 more
doaj   +1 more source

Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system

FEBS Letters, EarlyView.
Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley   +1 more source

Runaway electron diagnostics for the COMPASS tokamak using EC emission [PDF]

EPJ Web of Conferences, 2019
An electron cyclotron emission (ECE) diagnostic of suprathermal electrons was utilised for runaway electron (RE) experiments purposes in the COMPASS tokamak.
Farnik Michal, Urban Jakub, Zajac Jaromir, Bogar Ondrej, Ficker Ondrej, Macusova Eva, Mlynar Jan, Cerovsky Jaroslav, Varavin Mikita, Weinzettl Vladimir, Hron Martin   +10 more
doaj   +1 more source

First feedback-controlled divertor detachment in W7-X: Experience from TDU operation and prospects for operation with actively cooled divertor

Nuclear Materials and Energy, 2023
In the last experimental campaign (OP1.2b) of the stellarator Wendelstein 7-X (W7-X), boronisation as a mean for first wall conditioning was applied for the first time which led to strongly reduced impurity fluxes from plasma-facing components.
M. Krychowiak, R. König, T. Barbui, S. Brezinsek, J. Brunner, F. Effenberg, M. Endler, Y. Feng, E. Flom, Y. Gao, D. Gradic, P. Hacker, J.H. Harris, M. Hirsch, U. Höfel, M. Jakubowski, P. Kornejew, M. Otte, A. Pandey, T.S. Pedersen, A. Puig, F. Reimold, O. Schmitz, T. Schröder, V. Winters, D. Zhang   +25 more
doaj   +1 more source