X-ray spectra of multiply-charged hollow ions in the emission from a femtosecond laser plasma |
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| Authors: | A M Urnov J Dubau A Ya Faenov T A Pikuz I Yu Skobelev J Abdallah R E H Clark J Cohen R P Johnson G A Kyrala M D Wilke A L Osterheld |
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| Institution: | (1) P. N. Lebedev Physics Institute, 117924 Moscow, Russia;(2) Paris Observatory, F-9211195 Midon, France;(3) Center for Data on the Spectra of Multiply Charged Ions, All-Russia Scientific-Research Institute of Physicotechnical and Radioelectronic Measurements, 141570 Mendeleevo, Moscow Region, Russia;(4) Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA;(5) Livermore National Laboratory, Livermore, California 94551, USA |
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| Abstract: | A new type of quasicontinuous emission spectrum from a femtosecond laser plasma near the Lyα line of H-like ions is obtained and interpreted. It is shown that these spectra are emitted by multiply charged hollow ions,
which are present in the plasma on account of its ultrahigh density, which, in turn, is due to the use of high-contrast laser
pulses for producing the plasma. A new spectroscopic approach based on analysis of the composition of spectral complexes of
hollow ions is discussed.
Pis’ma Zh. éksp. Teor. Fiz. 67, No. 7, 467–472 (10 April 1998) |
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