Results 241 to 250 of about 100,982 (265)

Operation space of divertor detachment in DEMO

2015 IEEE 26th Symposium on Fusion Engineering (SOFE), 2015
In the paper we consider the operation window of DEMO divertor detachment expected under DEMO I operation conditions for various external impurity levels, particle throughput and pumping conditions, envisaged for fusion reactor. The operation region is defined in terms of upstream heat flux and the upstream density and is bounded by the burn conditions
Igitkhanov, Y., Day, C., Varoutis, S., Hauer, V.   +3 more
openaire   +2 more sources

Access conditions for H modes with detached divertor plasmas

Nuclear Fusion, 1996
Access conditions for H modes with detached divertor plasmas are derived by considering power threshold, divertor plasma temperature and density limit constraints. It is found that there is a minimum scrape-off layer power and main plasma density for accessing the detached divertor H mode, and that the required divertor radiated power fraction must ...
Borrass, K., Farengo, R., Vlases, G.
openaire   +2 more sources

Volume recombination and detachment in JET divertor plasmas

Journal of Nuclear Materials, 1999
The spatial distribution of recombination has been studied in the detaching phases of L and H-mode discharges. Recombination is detected by the sudden increase in intensity of the high quantum number states of the Balmer series of hydrogen. In L-mode, detachment occurs completely and the radiation moves to a region near the X-point.
R.D. Monk, A. Meigs, L. Horton, L.C. Ingesson, J. Lingertat, G.F. Matthews, M.G. O'Mullane, R. Prentice, M.F. Stamp, G.M. McCracken, P.C. Stangeby   +10 more
openaire   +1 more source

Detachment and divertor temperature and density redistribution

Physics of Plasmas, 2001
A theoretical model is developed for large scale-length, one-dimensional thermal instabilities along the field lines in tokamak divertors. Calculated growth rates predict a divertor thermal instability under the conditions (low-plasma temperature and density and high-neutral densities at the divertor plate) at which detachment followed by large-scale ...
openaire   +1 more source

Studies of detached plasma in the ULS divertor simulator

IEEE Conference Record - Abstracts. 2002 IEEE International Conference on Plasma Science (Cat. No.02CH37340), 2003
Summary form only given. We report on experimental and modelling studies of "detached " plasma operation in the UMIST Linear System (ULS) divertor simulator. The ULS is a device designed to study a range of edge plasma physics issues relevant to tokamak gas target divertors and is capable of producing steady-state plasmas with electron densities and ...
K.J. Gibson, P.K. Browning, D.A. Forder, J. Hugill, M. Johnson, B. Mihaljcic   +5 more
openaire   +1 more source

Divertor Plasma Detachment: Present Status of Understanding

Contributions to Plasma Physics, 1996
AbstractWe consider the main features of plasma detachment and try to find the most natural way to explain them. In general, we focus more on the qualitative analysis of the problem, illustrating the physics of the processes, rather than discussions of particular solutions of the plasma transport equations.
openaire   +1 more source

Study of detachment in future ASDEX Upgrade alternative divertor configurations by means of EMC3-EIRENE

Nuclear Materials and Energy, 2021
Marco Cavedon, Matthias Willensdorfer, B Kurzan   +2 more
exaly  

Behavior of Detachment Front in a Tokamak Divertor

Contributions to Plasma Physics, 2000
S. Nakazawa, N. Nakajima, M. Okamoto, N. Ohyabu   +3 more
openaire   +1 more source

Simulation studies of divertor detachment and critical power exhaust parameters for Japanese DEMO design

Nuclear Materials and Energy, 2021
Kazuo Hoshino, Nobuyuki Asakura, Yuki HOMMA   +2 more
exaly  

Study on ELM burn-through induced by small ELMs with divertor detachment in EAST

Physics Letters, Section A: General, Atomic and Solid State Physics, 2023
Nan Ding, Q Q Yang, Y B Wang
exaly