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Title: Simulation of the ion beam-plasma interaction processes for point-like ions in doped DT plasmas
Authors: Beltrán, Pablo R.
Gil, Juan Miguel 
Rodríguez, Rafael 
Espinosa, Guadalupe 
Barriga-Carrasco, Manuel D.
UNESCO Clasification: 220410 Física de plasmas
Issue Date: 2020
Project: Desarrollo de Modelos Físicos y Su Integración Computacional Para la Descripción Microscópica de Plasmas De 
Implementation of activities described in the Roadmap to Fusion during Horizon 2020 through a Joint programme of the members of the EUROfusion consortium 
Journal: X-Ray Spectrometry 
Abstract: The purpose of this work is to study the interaction between an ion beam and a doped deuterium-tritium (DT) plasma in a fast ignition nuclear fusion context. In order to analyze the influence of the dopants in the interaction process, we present a physical model to carry out spatial-temporal simulations of the stopping of an ion beam interacting with a doped plasma target, the plasma heating processes, and the formation of the ignition regions. We perform a set of numerical experiments where different concentrations of dopants are added to a fully ionized DT plasma. These simulations allow us to characterize the increase in the stopping power and the maximum temperatures achieved with the presence of impurities, as well as the reduction of the heated and ignition regions. This reduction in the ignition region indicates difficulties for the formation of an efficient hot spot when there are dopants in the DT plasma.
ISSN: 0049-8246
DOI: 10.1002/xrs.3083
Source: X-Ray Spectrometry [ISSN 0049-8246], v. 49 (1), p. 173-176
Appears in Collections:Artículos
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