Effects of autoionizing resonances on density-sensitive spectral-line intensity ratios in high-temperature plasmas

Journal Article · Mon Jan 15 04:00:00 EST 1990 · Physical Review, A (General Physics); (USA)

DOI:https://doi.org/10.1103/PhysRevA.41.1041· OSTI ID:6894458

Jacobs, V L ^[1]; Hagelstein, P L ^[2]; Chen, M H; Minner, R ^[3]; Seely, J F ^[4]

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1. Condensed Matter and Radiation Sciences Division, Code 4694 Naval Research Laboratory, Washington, D.C. 20375-5000 (USA)
2. Research Laboratory of Electronics Massachusetts Institute of Technology, Cambridge, Massachusetts 02139 (USA)
3. High Temperature Physics Division, L-296, Lawrence Livermore National Laboratory, University of California, Livermore, California 94550 (USA)
4. E. O. Hulburt Center for Space Research, Code 4174, Naval Research Laboratory, Washington, D.C. 20375-5000 (USA)

We present the results of detailed calculations for the intensity ratios between magnetic-quadrupole and electric dipole radiations that are emitted in the 3{ital p}{sup 5}3d{r arrow}3p{sup 6} transitions from highly ionized argonlike ions with nuclear charges in the range 26{le}{ital Z}{le}70. In arriving at our theoretical predictions, the population densities of the radiating 3{ital p}{sup 5}3d singly excited fine-structure levels were determined by the application of a collisional-radiative equilibrium model, in which we have systematically and self-consistently incorporated the results of fully relativistic multiconfiguration calculations for the atomic energy-level structure and for the elementary atomic collision and radiation rates. In the determination of the population densities of the 3{ital p}{sup 5}3d singly excited fine-structure levels, we have investigated the role of indirect processes involving the 3{ital p}{sup 5}4l4l{prime} intermediate autoionizing resonances and the 3{ital p}{sup 4}3d{sup 2} doubly excited bound states.

• OSTI ID: 6894458
• Journal Information: Physical Review, A (General Physics); (USA), Journal Name: Physical Review, A (General Physics); (USA) Vol. 41:2; ISSN PLRAA; ISSN 0556-2791
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700102* -- Fusion Energy-- Plasma Research-- Diagnostics
ATOMS
CHARGED PARTICLES
E1-TRANSITIONS
ELECTRON DENSITY
EMISSION SPECTRA
ENERGY-LEVEL TRANSITIONS
FUNCTIONS
HOT PLASMA
ION TEMPERATURE
IONS
ISOELECTRONIC ATOMS
M2-TRANSITIONS
MULTICHARGED IONS
MULTIPOLE TRANSITIONS
PLASMA
SENSITIVITY ANALYSIS
SPECTRA
SPECTRAL DENSITY
SPECTRAL FUNCTIONS