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Title: Recombination of H atoms on the dust in fusion plasmas

We survey a model for theoretical study of the interaction of hydrogen and dust surface and apply our results for dusty plasmas to fusion devices. In this model, considering the mobility of ad-atoms from one physisorbed, or chemisorbed site, to other one by thermal diffusion, we describe the formation of H{sub 2} on grain surfaces. Finally, we calculate the formation rate on the high temperature dust surfaces for a range of temperature and density in typical conditions of divertor of tokamak.
Authors:
;  [1] ;  [2]
  1. Plasma Physics and Nuclear Fusion Research School, Nuclear Science and Technology Research Institute (NSTRI), 14395-836 Tehran (Iran, Islamic Republic of)
  2. Department of Physics, Faculty of Science, Qom University, Qom (Iran, Islamic Republic of)
Publication Date:
OSTI Identifier:
22490021
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physics of Plasmas; Journal Volume: 22; Journal Issue: 7; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; CHEMISORPTION; DIVERTORS; DUSTS; HYDROGEN; INTERACTIONS; PARTICLE MOBILITY; PLASMA; RECOMBINATION; TEMPERATURE RANGE 0400-1000 K; THERMAL DIFFUSION; TOKAMAK DEVICES