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Physics of Plasmas : Simulations of electron transport and ignition for direct-drive fast-ignition targets

By A. A. Solodov, K. S. Anderson, R. Betti, V. Gotcheva, J. Myatt et al

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Book Id: WPLBN0002169648
Format Type: PDF eBook :
File Size: Serial Publication
Reproduction Date: 7 November 2008

Title: Physics of Plasmas : Simulations of electron transport and ignition for direct-drive fast-ignition targets  
Author: A. A. Solodov, K. S. Anderson, R. Betti, V. Gotcheva, J. Myatt et al
Volume: Issue : November 2008
Language: English
Subject: Science, Physics, Natural Science
Collections: Periodicals: Journal and Magazine Collection (Contemporary), Physics of Plasmas Collection
Historic
Publication Date:
Publisher: American Institute of Physics

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Solodov, K. S. Anderson, R. Betti, V. Gotcheva, J. Myatt Et A, A. A. (n.d.). Physics of Plasmas : Simulations of electron transport and ignition for direct-drive fast-ignition targets. Retrieved from http://community.worldlibrary.org/


Description
Description: The performance of high-gain, fast-ignition fusion targets is investigated using one-dimensional hydrodynamic simulations of implosion and two-dimensional (2D) hybrid fluid-particle simulations of hot-electron transport, ignition, and burn. The 2D/3D hybrid-particle-in-cell code LSP [ D. R. Welch et al., Nucl. Instrum. Methods Phys. Res. A 464, 134 (2001) ] and the 2D fluid code DRACO [ P. B. Radha et al., Phys. Plasmas 12, 056307 (2005) ] are integrated to simulate the hot-electron transport and heating for direct-drive fast-ignition targets. LSP simulates the transport of hot electrons from the place where they are generated to the dense fuel core where their energy is absorbed. DRACO includes the physics required to simulate compression, ignition, and burn of fast-ignition targets. The self-generated resistive magnetic field is found to collimate the hot-electron beam, increase the coupling efficiency of hot electrons with the target, and reduce the minimum energy required for ignition. Resistive filamentation of the hot-electron beam is also observed. The minimum energy required for ignition is found for hot electrons with realistic angular spread and Maxwellian energy-distribution function.

 

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