Dynamics and radiation of open (vacuum) plasmodynamic plasma-focus discharges
Journal Article
·
· High Temp. (Engl. Transl.); (United States)
OSTI ID:5575500
The results of an experimental investigation and analysis of the dynamics, space-time structure, and emission properties of open (vacuum) high-current plasmodynamic plasma-focus discharges in the energy range 2--350 eV are presented. A method of comprehensive investigation of radiation properties of high-current emitting discharges from the visible to far vacuum ultraviolet (VUV) part of the spectrum is described. It is shown that the emission spectrum of the plasma focus differs sharply from the Planck spectrum and arises mainly due to the recombination continuum of characteristic groups of ions, which determine the composition of the plasma at a given temperature and density and, in addition, 70--90% of the emitting energy occurs in the VUV part of the spectrum. The possibilities for effectively controlling the emission spectrum over a wide range of energies of quanta (effective macrostructure of the hypersonic flow, chemical composition, and others) and for attaining high brightness in the VUV are examined. Brightness temperatures, exceeding 5 eV, are obtained for the first time in the range beyond the ionization potential of helium.
- Research Organization:
- N. E. Bauman Higher Technical School, Moscow
- OSTI ID:
- 5575500
- Journal Information:
- High Temp. (Engl. Transl.); (United States), Journal Name: High Temp. (Engl. Transl.); (United States) Vol. 20:2; ISSN HITEA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700102 -- Fusion Energy-- Plasma Research-- Diagnostics
700106* -- Fusion Energy-- Plasma Research-- Plasma Production-- (-1987)
ABSORPTION
DATA
DYNAMICS
ELECTRIC DISCHARGES
ELECTROMAGNETIC RADIATION
EMISSION SPECTRA
ENERGY ABSORPTION
ENERGY RANGE
EV RANGE
EV RANGE 01-10
EV RANGE 10-100
EV RANGE 100-1000
EXPERIMENTAL DATA
FAR ULTRAVIOLET RADIATION
INFORMATION
JETS
MECHANICS
NUMERICAL DATA
OPEN PLASMA DEVICES
OPTIMIZATION
PLASMA DIAGNOSTICS
PLASMA FOCUS DEVICES
RADIATIONS
RECOMBINATION
SPECTRA
THERMONUCLEAR DEVICES
ULTRAVIOLET RADIATION
VELOCITY
VISIBLE RADIATION
700102 -- Fusion Energy-- Plasma Research-- Diagnostics
700106* -- Fusion Energy-- Plasma Research-- Plasma Production-- (-1987)
ABSORPTION
DATA
DYNAMICS
ELECTRIC DISCHARGES
ELECTROMAGNETIC RADIATION
EMISSION SPECTRA
ENERGY ABSORPTION
ENERGY RANGE
EV RANGE
EV RANGE 01-10
EV RANGE 10-100
EV RANGE 100-1000
EXPERIMENTAL DATA
FAR ULTRAVIOLET RADIATION
INFORMATION
JETS
MECHANICS
NUMERICAL DATA
OPEN PLASMA DEVICES
OPTIMIZATION
PLASMA DIAGNOSTICS
PLASMA FOCUS DEVICES
RADIATIONS
RECOMBINATION
SPECTRA
THERMONUCLEAR DEVICES
ULTRAVIOLET RADIATION
VELOCITY
VISIBLE RADIATION