The propagation and deposition of fast muons in dense DT mixture |
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Authors: | Li Xue-Mei Shen Bai-Fei Zhang Xiao-Mei Jin Zhang-Ying and Wang Feng-Chao |
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Institution: | State Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China; Department of Physics, School of Sciences, Guangxi University for Nationalities, Nanning 530006, China |
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Abstract: | The propagation of the fast muon population mainly due to
collisional effect in a dense deuterium--tritium (DT for short)
mixture is investigated and analysed within the framework of the
relativistic Fokker--Planck equation. Without the approximation that
the muons propagate straightly in the DT mixture, the muon
penetration length, the straggling length, and the mean transverse
dispersion radius are calculated for different initial energies, and
especially for different densities of the densely compressed DT
mixture in our suggested muon-driven fast ignition (FI). Unlike
laser-driven FI requiring super-high temperature, muons can catalyze
DT fusion at lower temperatures and may generate an ignition sparkle
before the self-heating fusion follows. Our calculation is important
for the feasibility and the experimental study of muon-driven FI. |
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Keywords: | fast muons propagation deposition |
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