Title :
Velocity space diffusion in Q-machine plasmas
Author :
Bowles, Jeffrey ; McWilliams, Roger ; Rynn, Nathan
Author_Institution :
Dept. of Phys., California Univ., Irvine, CA, USA
fDate :
12/1/1992 12:00:00 AM
Abstract :
Measurements of test particle diffusion in velocity space are reported. Test particles are created and examined using the method of optical tagging, an extension of laser-induced fluorescence. In quiet plasma conditions (δn/n⩽0.01%) results show diffusion to be linear with density in agreement with classical theory. Measurements taken in the presence of drift waves (δn/n≃6%) show resonant particle interactions. Applications to magnetospheric phenomena are discussed
Keywords :
fluorescence; plasma devices; plasma transport processes; plasma waves; Q-machine plasmas; drift waves; laser-induced fluorescence; linear diffusion; magnetospheric phenomena; optical tagging; quiet plasma conditions; resonant particle interactions; test particle diffusion; velocity space diffusion; Extraterrestrial measurements; Fluorescence; Laser theory; Particle measurements; Plasma density; Plasma measurements; Plasma waves; Tagging; Testing; Velocity measurement;
Journal_Title :
Plasma Science, IEEE Transactions on
