Accession Number : AD0784763

Title :   Measurements of Early Magnetic Fields in Laser Produced Plasmas.

Descriptive Note : Master's thesis,


Personal Author(s) : Wegener,Bernd

Report Date : JUN 1974

Pagination or Media Count : 83

Abstract : A plasma was produced by irradiation of an aluminum target with a 280MW, 25 nsec pulse from a neodymium-doped glass laser. The resulting plasma expanded into an ambient background of 0.00005 Torr to 1000 mTorr and was analyzed using floating double probes and magnetic probes. An early magnetic field was observed which arrived at the probe position before the main plasma. The strong reversed field observed at the front of the laser plasma is attributed to the development of an axial electron temperature gradient due to snowplowing of the ambient plasma and to the larger radial density gradient. (Modified author abstract)

Descriptors :   *Plasmas(Physics), *Laser beams, *Magnetic fields, Neodymium lasers, Aluminum, Electron energy, Nuclear fusion, Theses

Subject Categories : Plasma Physics and Magnetohydrodynamics

Distribution Statement : APPROVED FOR PUBLIC RELEASE