Abstract
The Nd-like isoelectronic sequence (60 electrons) of high Z elements could provide the basis for a soft x-ray laser (1). Gain may be possible at approximately 70 A for the 5f-5d transition in Nd-like Uranium. The potential advantage is that a medium power Nd:glass laser (10E12 to 10E13 watts/cm2) is sufficient to create a soft x-ray laser. As a first step in this development, soft x-ray spectra from Pb, Bi, Th and U were taken. These results will be presented along with three different atomic structure computer calculations of transition energies.
© 1988 Optical Society of America
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