Email RIS file
Bookmark
Report an Issue

Numerical modeling of suprathermal electron transport in laser-produced plasmas. Report number 36 [electronic resource].

Published
Arlington, Va. : National Science Foundation (U.S.), 1976.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description
38 pages : digital, PDF file
Additional Creators
National Science Foundation (U.S.) and United States. Department of Energy. Office of Scientific and Technical Information
Access Online

Availability

I Want It
I Want It

Finding items...

Restrictions on Access
Free-to-read Unrestricted online access
Summary
Supra-thermal electrons can radically alter the dynamics of imploding laser fusion targets by preheating the target material, by transforming energy to a rapid ion blowoff or, due to mean free path effects, decoupling the core from the corona. In order to correctly simulate the dynamics of a laser driven target, it is necessary to develop an accurate physical and computational model of these electrons. The difficulties inherent in this problem can be appreciated by noting that the supra-thermal velocities can vary by over an order of magnitude while the density of the background thermal electron fluid through which they propagate can vary by over four orders of magnitude. Since the supra-thermal mean free-path is proportional to v⁴/n{sub e}, there can be an eight order of magnitude variation in this scaling parameter. Since the transport of supra-thermal electrons must be followed in both the diffusive and free streaming limits, neither flux limited diffusion models nor truncated moment methods are adequate. A three component model of transport of supra-thermal electrons is developed here to satisfy all requirements discussed in this paper.
Report Numbers
E 1.99:nyserda--96006489
nyserda--96006489
Subject(s)
Other Subject(s)
Note
Published through SciTech Connect.
08/01/1976.
"nyserda--96006489"
"TI96006489"
Goldman, E.B.; Delettrez, J.
New York State Energy Research and Development Authority, Albany, NY (United States)
View MARC record | catkey: 14749066