Measurements of the optical emission produced during the laboratory beam plasma discharge

Details Measurements of the optical emission produced during the laboratory beam plasma discharge Measurements of the optical emission produced during the laboratory beam plasma discharge

Apr 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984jgr....89.2335h&link_type=abstract

Journal of Geophysical Research (ISSN 0148-0227), vol. 89, April 1, 1984, p. 2335-2347.

Other

9

Beam Plasma Amplifiers, Light Emission, Plasma Jets, Plasma-Electromagnetic Interaction, Visual Observation, Electron Beams, Optical Emission Spectroscopy, Pressure Effects

Scientific paper

Optical observations of a beam-plasma discharge (BPD) in the laboratory showed that the discharge remained confined to a diameter little more than double that of the beam for injection parallel to the magnetic field and approximately equal to that of the beam for injection at large pitch angles. The diameter was independent of beam current but varied linearly with beam velocity and inversely with magnetic field strength. The ionization rate inferred from the total emission of 3914 A, integrated over the radial extent of the beam, was proportional to the excess beam current above that requied for BPD ignition. The proportionality constant ( 12 + or - 2) x 10 to the 14th ions/cm s A was valid over a wide range of pressure and of magnetic field strength. Power loss to ionization in a 20 m path was estimated at up to 4 percent of the beam power. Evidence is presented for effective confinement of suprathermal electrons (parallel to B) by some unidentified process other than electrostatic confinement.

Affiliated with

Also associated with

No associations

Rating

Measurements of the optical emission produced during the laboratory beam plasma discharge does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Measurements of the optical emission produced during the laboratory beam plasma discharge, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Measurements of the optical emission produced during the laboratory beam plasma discharge will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1500267