Transport Properties and Radiation Production in Plasmas with Sub-Larmor-Scale Magnetic Turbulence

Kinetic streaming instabilities, such as the Weibel instability, occur in various HED plasma setups. Such instabilities generate strong (sub-equipartition) magnetic fields which reside at small, sub-Larmor scales. Efficient electron acceleration to relativistic energies is not uncommon in such environments. Spectra of radiation emitted by these relativistic electrons can deliver a wealth of information about the internal structure of such "Weibel turbulence". The small-scale fields simultaneously drive the particle transport via pitch-angle diffusion. Both effects are related and can be used to diagnose the plasma state. We study such a relation between transport and radiation in sub-Larmor-scale turbulence via numerical simulations and analysis.

Grantor dc:publisher

University of Kansas

Year dc:date.issued

2012

Author dc:creator

• Keenan, Brett

Advisor dc:contributor.advisor

• Medvedev, Mikhail V

• Plasma physics
• Astrophysics
• Diffusion
• Jitter radiation
• Magnetic turbulence
• Pitch-angle
• Small-scale
• Weibel instability

Statement dc:rights

• This item is protected by copyright and unless otherwise specified the copyright of this thesis/dissertation is held by the author.

Language dc:language.iso

en

Dc Identifier Other

http://dissertations.umi.com/ku:12513

OAI identifier oai:identifier

oai:kuscholarworks.ku.edu:1808/10863