Δn = 0 N-shell emission of rare earth ions (Z = 59 to 70) emitted from low and high density tokamak and laser produced plasmas

M. Finkenthal*, S. Lippmann, L. K. Huang, H. W. Moos, Y. T. Lee, N. Spector, A. Zigler, E. Yarkoni, M. Finkenthal*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

14 Scopus citations

Abstract

A discussion of the line and unresolved transition arrays emission of rare earths ions isoelectronic with PdI to CuI emitted from low (∼ 1013 cm−3) and high (∼ 1020 cm−3) density tokamak and laser produced plasmas is presented. The spectra of prasaeodymium, europium, gadolinium, dysprosium and ytterbium have been excited in the TEXT tokamak plasma and recorded in the 50-200 Å range by means of a photometrically calibrated, time-resolving multispectral grazing incidence spectrograph. The prasaeodymium, samarium, gadolinium, dysprosium and ytterbium spectra obtained by focussing an Nd-glass laser beam on solid targets were recorded in the same spectral range on photographic plates. The relationship between the main plasma parameters, electron temperature and density, and the soft X-ray emission of rare earths is analyzed and discussed.

Original languageEnglish
Pages (from-to)445-448
Number of pages4
JournalPhysica Scripta
Volume41
Issue number4
DOIs
StatePublished - 1 Apr 1990
Externally publishedYes

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