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Author Janssen, G. C. A. M. ♦ Bonnie, J. H. M. ♦ Granneman, E. H. A. ♦ Krementsov, V. I. ♦ Hopman, H. J.
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword PLASMA PHYSICS AND FUSION TECHNOLOGY ♦ ELECTRON BEAMS ♦ ANGULAR DISTRIBUTION ♦ PLASMA ♦ ELECTRON BEAM INJECTION ♦ PLASMA HEATING ♦ PLASMA DIAGNOSTICS ♦ THOMSON SCATTERING ♦ CORRELATIONS ♦ ELECTRON TEMPERATURE ♦ ENERGY TRANSFER ♦ KEV RANGE 100-1000 ♦ MAGNETIC FIELDS ♦ PULSES ♦ RELATIVISTIC RANGE ♦ TIME DEPENDENCE ♦ BEAM INJECTION ♦ BEAMS ♦ DISTRIBUTION ♦ ENERGY RANGE ♦ HEATING ♦ INELASTIC SCATTERING ♦ KEV RANGE ♦ LEPTON BEAMS ♦ PARTICLE BEAMS ♦ SCATTERING ♦ Fusion Energy- Plasma Research- Diagnostics ♦ Fusion Energy- Plasma Research- Confinement, Heating, & Production
Abstract Reported are measurements on the interaction between a relativistic electron beam (REB) with the parameters 800 kV, 6 kA, 50--150 nsec, and a plasma with a density of n/sub e/ = 1.0 x 10/sup 19/ m/sup -3/--1.0 x 10/sup 20/ m/sup -3/. The electron temperature during and after the beam pulse is obtained by means of Thomson scattering. Also measured is the angular distribution of the beam electrons as a function of time and position. By varying the angular spread of the beam it is possible to pass from a kinetic to a quasihydrodynamic interaction. In both regimes measurements are compared with the appropriate theoretical model. Energy transfer is largest in the quasihydrodynamic regime and amounts to 2.5 x 10/sup 3/ J/m/sup 3/ or 2.2 x 10/sup 16/ eV/cm/sup 3/. The electron temperature reaches values of 150 eV and appears limited by the electron heat conduction along the magnetic field.
Educational Use Research
Learning Resource Type Article
Publisher Date 1984-03-01
Publisher Department Association Euratom-FOM, FOM Institute for Atomic and Molecular Physics, Kruislaan 407, 1098 SJ Amsterdam, The Netherlands
Publisher Place United States
Journal Phys. Fluids
Volume Number 27
Issue Number 3
Organization Association Euratom-FOM, FOM Institute for Atomic and Molecular Physics, Kruislaan 407, 1098 SJ Amsterdam, The Netherlands


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