Application of the collisional-radiative, atomic-molecular model to the recombining divertor plasma
TLDR
In this article, the authors calculated the effective rate coefficient for plasma recombination taking into account the plasma chemical reactions with vibrationally excited molecules and showed that the large size of this rate coefficient and its specific dependence on plasma parameters may explain the anomalously fast plasma recombinations experimentally observed on many divertor tokamaks.About:
This article is published in Physics Letters A.The article was published on 1996-11-04 and is currently open access. It has received 111 citations till now. The article focuses on the topics: Plasma recombination & Divertor.read more
Citations
More filters
Journal ArticleDOI
Chapter 4: Power and particle control
A. Loarte,Bruce Lipschultz,A.S. Kukushkin,G. F. Matthews,P.C. Stangeby,Nobuyuki Asakura,G. F. Counsell,G. Federici,A. Kallenbach,K. Krieger,A. Mahdavi,V. Philipps,Detlev Reiter,J. Roth,J. D. Strachan,D.G. Whyte,R.P. Doerner,T. Eich,W. Fundamenski,A. Herrmann,M.E. Fenstermacher,Philippe Ghendrih,M. Groth,A. Kirschner,S. Konoshima,Brian LaBombard,Peter Lang,A.W. Leonard,P. Monier-Garbet,Rudolf Neu,H.D. Pacher,B. Pégourié,R.A. Pitts,Shuichi Takamura,J. L. Terry,E. Tsitrone +35 more
TL;DR: In this paper, the authors describe the processes that will determine the properties of the plasma edge and its interaction with material elements in ITER and compare their predictions with the new experimental results.
Journal ArticleDOI
Static and dynamic behaviour of plasma detachment in the divertor simulator experiment NAGDIS-II
Noriyasu Ohno,Daisuke Nishijima,Shuichi Takamura,Yoshihiko Uesugi,M. Motoyama,N. Hattori,H. Arakawa,Naomichi Ezumi,Sergei Krasheninnikov,A. Pigarov,U. Wenzel +10 more
TL;DR: In this paper, the static and dynamic behavior of detached recombining plasmas in the linear divertor plasma simulator NAGDIS-II was investigated. But the results of the analysis were limited to a single tokamak diveror.
Journal ArticleDOI
Volume recombination and opacity in Alcator C-Mod divertor plasmas
J. L. Terry,Bruce Lipschultz,A. Yu. Pigarov,Sergei Krasheninnikov,Brian LaBombard,D. Lumma,H. Ohkawa,D. A. Pappas,Maxim Umansky +8 more
TL;DR: In this article, the authors measured the D0 Balmer spectrum and used a collisional radiative model describing the level populations, ionization, and recombination of D0.
Journal ArticleDOI
Physics of ultimate detachment of a tokamak divertor plasma
TL;DR: In this paper, the basic physics of the processes playing the most important role in divertor plasma detachment is reviewed, and the models used in the two-dimensional edge plasma transport codes that are widely used to address different issues of the edge plasma physics and to simulate the experimental data, as well as the numerical schemes and convergence issues, are described.
Journal ArticleDOI
Divertor plasma detachment
TL;DR: In this paper, the authors show that the increase of impurity radiation loss and volumetric plasma recombination causes the rollover of the plasma flux to the target when the density increases, which is the manifestation of detachment.
References
More filters
Journal ArticleDOI
Topics in Current Physics
TL;DR: In this article, Hess et al. discuss photoacoustic, photothermal, and photochemical processes at surfaces and in thin films, with contributions by A.P. Hess, L. C. Konstantinov, A.C. Tarn, F. Matthias, R. M. Miller, U. Netzelmann, E. Neubrand, J. W. Pelzl, and E. Träger.
Journal ArticleDOI
First results from Alcator‐C‐MOD*
Ian H. Hutchinson,R. L. Boivin,F. Bombarda,Paul Bonoli,S. Fairfax,C.L. Fiore,John Goetz,S. Golovato,Robert Granetz,Martin Greenwald,S. Horne,Amanda Hubbard,J. H. Irby,Brian LaBombard,Bruce Lipschultz,E.S. Marmar,G.M. McCracken,M. Porkolab,J. E. Rice,J. A. Snipes,Yuichi Takase,J. L. Terry,S.M. Wolfe,C. Christensen,D. T. Garnier,M. Graf,T. Hsu,T. Luke,Mark May,A. Niemczewski,G. Tinios,J. Schachter,J. Urbahn +32 more
TL;DR: Early operation of the Alcator C-MOD tokamak [I.H. Hutchinson et al., 1990] is surveyed and the edge plasma shows a wealth of marfe-like phenomena, including a transition to detachment from the divertor plates with accompanying radiative divertor regions.
BookDOI
Atomic and molecular processes in fusion edge plasmas
TL;DR: In this article, the authors studied the properties of Fusion Edge Plasmas and the role of atomic and molecular processes, and the relationship between the VQN of H2 and D2 molecules on the Vibrational Quantum Number (VQN).
Journal ArticleDOI
Effective ionization and dissociation rate coefficients of molecular hydrogen in plasma
Keiji Sawada,Takashi Fujimoto +1 more
TL;DR: In this article, a simplified collisional-radiative model has been constructed for the system of the ground state, electronically excited stable states, and the ionic state of molecular hydrogen in plasma.
Journal ArticleDOI
Plasma recombination and divertor detachment
TL;DR: It is concluded that plasma recombination is a strongly contributing mechanism for the explanation of divertor plasma detachment in low temperature plasmas.