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Simulation of the ion beam‐plasma interaction processes for point‐like ions in doped DT plasmas
Author(s) -
Beltrán Pablo R.,
Gil Juan Miguel,
Rodríguez Rafael,
Espinosa Guadalupe,
BarrigaCarrasco Manuel D.
Publication year - 2019
Publication title -
x‐ray spectrometry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.447
H-Index - 45
eISSN - 1097-4539
pISSN - 0049-8246
DOI - 10.1002/xrs.3083
Subject(s) - plasma , dopant , ignition system , atomic physics , ion , context (archaeology) , materials science , doping , chemistry , physics , nuclear physics , optoelectronics , thermodynamics , paleontology , organic chemistry , biology
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.