ISSN:
1089-7674
Quelle:
AIP Digital Archive
Thema:
Physik
Notizen:
Plasma temperatures in the range 25 to 2×106 K have been measured using a cryogenic, ultra-high vacuum, pure-electron plasma trap. The rate ν at which the temperatures parallel and perpendicular to the applied magnetic field relax to a common value has been measured over the temperature range 28 to 3.8×105 K and the magnetic field range 20 to 60 kG. This rate ν is closely related to the plasma collision frequency. When the cyclotron radius rc is large compared to the classical distance of closest approach b (rc/b(very-much-greater-than)1), the measured values of ν are in agreement with conventional collision theory. When the cyclotron radius is small compared to the classical distance of closest approach (rc/b(very-much-less-than)1), ν drops precipitously as rc/b is decreased, in agreement with the many-electron adiabatic invariant theory of O'Neil and Hjorth. © 1996 American Institute of Physics.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1063/1.871749
