TY - JOUR
T1 - Characteristics of two types of beam plasma discharge in a laboratory experiment
AU - Boswell, R. W.
AU - Kellogg, Paul J.
PY - 1983/7
Y1 - 1983/7
N2 - Experiments on the Beam Plasma Discharge (BPD) using an electron beam traveling along a magnetic field have been carried out in a large volume laboratory vacuum chamber. Two different types of BPD have been observed, and scaling laws for varying neutral gas pressure, axial magnetic field, interaction length and electron flux, deduced. The second type of BPD occurs when the beam current is increased well above the threshold for the first type. The transition from the first type to the second, like the ignition of the first, is distinguished by abrupt changes of luminosity, discharge diameter, and wave emission signature.
AB - Experiments on the Beam Plasma Discharge (BPD) using an electron beam traveling along a magnetic field have been carried out in a large volume laboratory vacuum chamber. Two different types of BPD have been observed, and scaling laws for varying neutral gas pressure, axial magnetic field, interaction length and electron flux, deduced. The second type of BPD occurs when the beam current is increased well above the threshold for the first type. The transition from the first type to the second, like the ignition of the first, is distinguished by abrupt changes of luminosity, discharge diameter, and wave emission signature.
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U2 - 10.1029/GL010i007p00565
DO - 10.1029/GL010i007p00565
M3 - Article
AN - SCOPUS:84944833256
SN - 0094-8276
VL - 10
SP - 565
EP - 568
JO - Geophysical Research Letters
JF - Geophysical Research Letters
IS - 7
ER -