Laser-produced highly-charged ions of heavy elements

Journal Article · Tue Apr 15 00:00:00 EDT 1997 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.53574· OSTI ID:21167504

Laska, L; Kralikova, B; Krasa, J; Masek, K; Pfeifer, M; Rohlena, K; Skala, J; Straka, P; Woryna, E; Parys, P; Wolowski, J; Mroz, W; Collier, J; Haseroth, H; Langbein, K; Golubev, A; Sharkov, B; Shumshurov, A ^[1]

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1. Inst. Physics, Acad. Sci. Czech Rep., 180 40 Prague 8 (Czech Republic)

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 ({lambda}=1.315 {mu}m) and its 2nd ({lambda}=0.657 {mu}m) and 3rd ({lambda}=0.438 {mu}m) harmonics. Short laser pulse (350 ps) and a focus spot diameter of 100 {mu}m allowed for the laser power densities in the range of 5x10{sup 13}-1.5x10{sup 15} W/cm{sup 2}. 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.

• OSTI ID: 21167504
• Journal Information: AIP Conference Proceedings, Vol. 406, Issue 1; Conference: 13. international conference on laser interactions and related plasma phenomena, Monterey, CA (United States), 13-18 Apr 1997; Other Information: DOI: 10.1063/1.53574; (c) 1997 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
CHARGE DISTRIBUTION
CHARGE STATES
CORRELATIONS
ELECTRON TEMPERATURE
GOLD IONS
IODINE LASERS
ION TEMPERATURE
LASER TARGETS
LASER-PRODUCED PLASMA
LEAD IONS
MEV RANGE
MULTICHARGED IONS
PETAWATT POWER RANGE
PLASMA EXPANSION
POWER DENSITY
PULSED IRRADIATION
TANTALUM IONS
TIME-OF-FLIGHT METHOD
X RADIATION