| Autor: |
Waldemar Mróz, A. V. Shumshurov, E. Woryna, A. Golubev, B. Kralikova, P. Straka, K. Masek, H. Haseroth, Leos Laska, J. Skala, P. Parys, J. Wołowski, Miroslav Pfeifer, B. Sharkov, K. Rohlena, K. Langbein, John R. Collier, J. Krása |
| Rok vydání: |
1997 |
| Předmět: |
|
| Zdroj: |
The 13th international conference on laser interactions and related plasma phenomena. |
| DOI: |
10.1063/1.53574 |
| Popis: |
Results of systematic studies of laser-produced multiply charged ions are summarized. Experiments were performed using the iodine laser system PERUN operating with the fundamental frequency (λ=1.315 μm) and its 2nd (λ=0.657 μm) and 3rd (λ=0.438 μm) harmonics. Short laser pulse (350 ps) and a focus spot diameter of 100 μm allowed for the laser power densities in the range of 5×1013−1.5×1015 W/cm2. Different medium- and high-Z elements were tested as a target. Corpuscular diagnostics were based on a time-of-flight method. The ions with maximum charge state around 50+ and having energy higher than 4 MeV were registered for Ta, W, Pt, Au, Pb, Bi in a distance of about 2m. Correlation of X-ray radiation and ion generation was examined. The occurrence of highly charged ions in the far expansion zone is ascribed to the mechanism of charge distribution “freezing” during a two temperature plasma expansion. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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