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Observation of MeV ions in long-pulse, large-scale laser-produced plasmas |
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| Authors: | F. B. Rosmej D. H. H. Hoffmann W. Suess M. Geissel P. Pirzadeh M. Roth W. Seelig A. Ya. Faenov I. Yu. Skobelev A. I. Magunov T. A. Pikuz R. Bock U. N. Funk U. Neuner S. Udrea A. Tauschwitz N. A. Tahir B. Yu. Sharkov N. E. Andreev |
| Affiliation: | 1. Institut für Kernphysik, Technische Universit?t Darmstadt, D-64289, Darmstadt, Germany 2. Institut für Angewandte Physik, Technishe Universit?t Darmstadt, D-64289, Darmstadt, Germany 3. Multicharged Ions Spectra Data Center of VNIIFTRI, 141570, Mendeleevo, Russia 4. Bauman Moscow State Technical University, 107005, Moscow, Russia 5. Institute for Plasmaphysics, Gesellschaft für Schwerionenforschung, D-64291, Darmstadt, Germany 6. Institute of Experimental and Theoretical Physics, 117257, Moscow, Russia 7. High Energy Density Research Center, Insitute of High Temperatures, Russian Academy of Sciences, 127412, Moscow, Russia |
| Abstract: | A new approach for investigation of the generation of fast ions and hot electrons inside the same plasma volume in laser-produced plasmas is proposed. It is based on the spectroscopic observation of line radiation from singly and doubly excited levels with simultaneous high spectral and spatial resolution. The experimental results demonstrate the observation of fast ions from highly charged target material inside the plasma volume and suggest that the generally accepted scaling relations are seriously invalid under certain conditions. Even at rather modest intensities ions with energies of several MeV are observed. Pis’ma Zh. éksp. Teor. Fiz. 70, No. 4, 262–267 (25 August 1999) Published in English in the original Russian journal. Edited by Steve Torstveit. |
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