NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Use of generalized population ratios to obtain Fe XV line intensities and linewidths at high electron densitiesA generalized method for obtaining individual level population ratios is used to obtain relative intensities of extreme ultraviolet Fe XV emission lines in the range 284-500 A, which are density dependent for electron densities in the tokamak regime or higher. Four lines in particular are found to attain quite high intensities in the high-density limit. The same calculation provides inelastic contributions to linewidths. The method connects level populations and level widths through total probabilities t(ij), related to 'taboo' probabilities of Markov chain theory. The t(ij) are here evaluated for a real atomic system, being therefore of potential interest to random-walk theorists who have been limited to idealized systems characterized by simplified transition schemes.
Document ID
19800064593
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Kastner, S. O.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Bhatia, A. K.
(NASA Goddard Space Flight Center Laboratory for Astronomy and Solar Physics, Greenbelt, Md., United States)
Date Acquired
August 10, 2013
Publication Date
August 1, 1980
Publication Information
Publication: Physical Review A - General Physics
Subject Category
Plasma Physics
Accession Number
80A48763
Distribution Limits
Public
Copyright
Other

Available Downloads

There are no available downloads for this record.
No Preview Available