Population inversion in plasmas generated during recombination cascades

Journal Article · Thu Nov 15 04:00:00 EST 2007 · Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics

DOI:https://doi.org/10.1103/PHYSREVE.76.056404· OSTI ID:21076273

Pert, G J ^[1]

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1. Physics Department, University of York, Heslington, York YO10 5DD (United Kingdom)

The collisional-radiative model for hydrogenlike ions is used to investigate the scaling of recombination at low temperatures in order to identify the necessary conditions of electron density and temperature, which will allow population inversion between the first excited state and the ground state to be developed. Numerical calculations show that at low temperatures the population growth in the hydrogenic states can be represented by similarity relations. The physical origin of these forms is presented. A table of minimum densities at which inversion will occur is given as a function of temperature for ions of arbitrary atomic number.

• OSTI ID: 21076273
• Journal Information: Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics, Journal Name: Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics Journal Issue: 5 Vol. 76; ISSN PLEEE8; ISSN 1063-651X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
ATOMIC NUMBER
ELECTRON DENSITY
ELECTRON TEMPERATURE
EXCITED STATES
GROUND STATES
ION TEMPERATURE
ION-ATOM COLLISIONS
PLASMA
PLASMA DENSITY
POPULATION INVERSION
RECOMBINATION
TEMPERATURE DEPENDENCE