Radiative and diffusional effects to the population densities of the excited-state atoms in hydrogen plasma

Journal Article · Mon Aug 01 00:00:00 EDT 1988 · Rev. Sci. Instrum.; (United States)

DOI:https://doi.org/10.1063/1.1140184· OSTI ID:6949670

Cho, K Y; Eddy, T L

Collisional--radiative (C--R) calculations based on the generalized multithermal equilibrium (GMTE) model are used to find the effects of radiative transfer and diffusion on excited-state populations in a hydrogen plasma. Radiation absorption factors are introduced to study the nonlocal aspects of radiative transfer. Unlike escape factors, the absorption factor can represent the absorption of more radiation than that emitted, and hence provides C--R analysis in strong gradients such as the outer edge of arcs or plasma jets. The Boltzmann temperatures of excited atoms are found not necessarily equal to the electron kinetic temperature, contrary to the usual assumption.

• Research Organization: George Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332-0405
• OSTI ID: 6949670
• Journal Information: Rev. Sci. Instrum.; (United States), Journal Name: Rev. Sci. Instrum.; (United States) Vol. 59:8; ISSN RSINA
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700102 -- Fusion Energy-- Plasma Research-- Diagnostics
700103* -- Fusion Energy-- Plasma Research-- Kinetics
ATOM COLLISIONS
BOLTZMANN STATISTICS
CHARGED PARTICLES
COLLISIONAL PLASMA
COLLISIONS
EQUATIONS
HYDROGEN IONS
ION COLLISIONS
ION-ATOM COLLISIONS
IONIZATION
IONS
KINETIC EQUATIONS
PLASMA
PLASMA DIAGNOSTICS
SPECTRA
TRANSPORT THEORY
VISIBLE SPECTRA