Title :
Seeded mega-Gauss turbulence in dense fusion target plasmas
Author_Institution :
Inst. for Fluid Dynamics & Appl. Math., Univ. of Maryland, College Park, MD, USA
Abstract :
Fine scale variations in the chemical composition of a dense plasma target (such as a plasma produced by a focused laser or REB pulse) give rise to corresponding spatial fluctuations in the electron density which persist until dispersed by diffusive or turbulent mixing. In the presence of a sufficiently steep background temperature gradient these density fluctuations are expected to give rise to mega-Gauss magnetic field fluctuations for plasma temperatures of about a kilovolt. Composition fluctuations would also produce resistivity fluctuations in low-temperature targets and generate large fields in current-carrying plasmas. This phenomenon may be of interest in the design of targets for electron beam driven fusion.
Keywords :
fusion reactor design; fusion reactor targets; plasma density; plasma fluctuations; plasma production; plasma temperature; plasma turbulence; relativistic electron beams; REB pulse; composition fluctuations; current-carrying plasmas; dense fusion target plasma chemical composition; diffusive mixing; electron beam driven fusion target design; electron density spatial fluctuations; fine scale variations; focused laser; large field generation; low-temperature targets; mega-Gauss magnetic field fluctuations; plasma temperatures; relativistic electron beam pulses; resistivity fluctuations; seeded megaGauss turbulence; sufficiently steep background temperature gradient; turbulent mixing; Abstracts; Argon; Conductivity; Impurities; Laser beams; Mathematics;
Conference_Titel :
Electron Beam Research & Technology, 1975 International Topical Conference on
Conference_Location :
Albuquerque, NM
Print_ISBN :
0-8493-6926-6