IONIZATION STATE DISTRIBUTION AND RADIATIVE COOLING RATE FOR ARGON IN A LOW-DENSITY PLASMA
| Autor: | M.J. May, William H. Goldstein, K. B. Fournier, Marvin L. Cohen |
|---|---|
| Rok vydání: | 1998 |
| Předmět: |
Nuclear and High Energy Physics
Argon Radiative cooling Chemistry Astrophysics::High Energy Astrophysical Phenomena Bremsstrahlung chemistry.chemical_element Plasma Atomic and Molecular Physics and Optics Ion Autoionization Physics::Plasma Physics Ionization Physics::Atomic and Molecular Clusters Physics::Atomic Physics Atomic physics Collisional excitation |
| Zdroj: | Atomic Data and Nuclear Data Tables. 70:231-254 |
| ISSN: | 0092-640X |
| DOI: | 10.1006/adnd.1998.0793 |
| Popis: | This paper presents the coronal ionization state distribution for argon. The calculations include ab initio rate coefficients for collisional excitation followed by autoionization (EA), and rates for direct ionization and dielectronic and radiative recombination. The EA rate coefficients have been fitted to analytical expressions, and the fitting coefficients are tabulated. The paper then presents the calculated radiative cooling coefficient for argon ions in a low-density plasma as a function of temperature. The channels for power loss from argon ions include collisional-radiative (CR) line emission, dielectronic and radiative recombination, and bremsstrahlung emission. The power emitted via CR line emission for each ion is tabulated on a grid of temperatures and densities. The total power loss coefficient is fitted to an analytical expression in powers of the temperature. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect