Zobrazeno 1 - 10
of 15
pro vyhledávání: '"A. R. Praeg"'
Autor:
P. Mistry, M. Stupka, Tomas Mocek, Michaela Kozlova, G.J. Tallents, Jiri Polan, P. Homer, B. Rus, D. S. Whittaker, Geoffrey J. Pert, A. R. Praeg, M. H. Edwards
Publikováno v:
Physical Review Letters. 99
The rate of laser ablation at irradiances of approximately 2 x 10{14} W cm{-2} of solid iron has been measured using the transmission of a neonlike zinc x-ray laser at 21.2 nm through thin iron targets. Ablated iron becomes transparent to the x-ray l
Autor:
Bedřich Rus, Tomas Mocek, D. S. Whittaker, P. Mistry, Jiri Polan, P. Homer, Michaela Kozlova, G.J. Tallents, M. H. Edwards, M. Stupka, Geoffrey J. Pert, A. R. Praeg
Publikováno v:
SPIE Proceedings.
The rate of laser ablation at irradiances of ~2x10 14 Wcm -2 of solid iron and aluminum has been measured using the transmission of a neon-like zinc X-ray laser at 21.2 nm through thin iron and aluminum targets. It is shown that the opacity of ablate
Autor:
I. Krasuyk, Bedřich Rus, Jiri Skala, V. Chernomyrdin, Takayoshi Norimatsu, Michaela Kozlova, R. Dezulian, D. Batani, R. Dudzak, Keiji Nagai, A V Kil'pio, E. Shashkov, G. Lucchini, F. Ito, E. Krousky, F. Orsenigo, Tommaso Vinci, M. Soukup, F. Canova, T. Havlíček, S. Barbanotti, M. Stupka, A. R. Praeg, Miroslav Pfeifer, Hiroaki Nishimura, I. Stuchebrukhov, Jiri Polan, P. Homer, R. Redaelli, V. I. Vovchenko
In this paper we present Hugoniot data for plastic foams obtained with laser-driven shocks. Relative equation-of-state data for foams were obtained using Al as a reference material. The diagnostics consisted in the detection of shock breakout from do
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1e7266bc3649d3dcf84afd5bbd5946f0
http://hdl.handle.net/10281/29361
http://hdl.handle.net/10281/29361
Autor:
Greg J. Tallents, M. H. Edwards, Geoffrey J. Pert, Alice Delserieys, M. M. Notley, Ciaran Lewis, M. Stupka, D. S. Whittaker, Tomas Mocek, H. Huang, B. Rus, A. R. Praeg, Nicola Booth, D. Neely, Jiri Polan, P. Homer, M. Koslova, C M McKenna, P. Mistry
Publikováno v:
X-Ray Lasers 2006
X-Ray Lasers 2006, 115, Springer Netherlands, pp.445-454, 2006, Springer Proceedings in Physics, ⟨10.1007/978-1-4020-6018-2_55⟩
Springer Proceedings in Physics ISBN: 9781402060175
X-Ray Lasers 2006, 115, Springer Netherlands, pp.445-454, 2006, Springer Proceedings in Physics, ⟨10.1007/978-1-4020-6018-2_55⟩
Springer Proceedings in Physics ISBN: 9781402060175
The use of x-ray lasers as probes of the opacity of hot dense plasma and rates of laser ablation is considered. It is shown that x-ray lasers are sufficiently bright to overcome plasma emission and enable plasma opacity to be measured. A demonstratio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9cd3704329b6525bb5aeaae4216dcd9d
https://hal.archives-ouvertes.fr/hal-02429958
https://hal.archives-ouvertes.fr/hal-02429958
Autor:
A. R. Praeg, Tomas Mocek, M. H. Edwards, M. Stupka, M. Vopsaroiu, Geoffrey J. Pert, D. S. Whittaker, M. Koslova, Jiri Polan, P. Homer, G.J. Tallents, P. Mistry, Bedřich Rus
Publikováno v:
SPIE Proceedings.
The ablation of plain aluminium foil and aluminium foil with a thin (50 nm) iron coating was observed using a neon-like zinc x-ray laser. The 21.2 nm x-ray laser was produced by a double pass of a 3 cm long zinc target at the PALS centre in Prague. T
Autor:
Zdenek Otcenasek, Josef Krasa, Michaela Kozlova, R. Sobierajski, Bedrich Rus, Libor Juha, Jiri Polan, M. Stupka, Leszek Ryć, A. R. Praeg, Michal Bittner
Publikováno v:
SPIE Proceedings.
Radiation from the Ne-like Zn soft x-ray laser (λ=21.2 nm, τ< 100 ps) driven by PALS (Prague Asterix Laser System) was successfully focused with a spherical Si/Mo multilayer-coated mirror to ablate poly(methyl methacrylate), monocrystalline silicon
Publikováno v:
SPIE Proceedings.
Program of development of deeply saturated Ne-like zinc soft X-ray laser at the PALS (Prague Asterix Laser System) Centre, employing as a pump device a kilojoule high-power iodine laser, is reviewed. The active medium giving rise to laser action at 2
Autor:
Jorge J. Rocca, Michael Grisham, F. P. Boody, Josef Feldhaus, Josef Krasa, A. R. Praeg, Jiri Polan, Jerzy B. Pelka, A. Andrejczuk, Bedrich Rus, Dagmar Chvostova, Libor Juha, Carmen S. Menoni, Zdenek Otcenasek, Michaela Kozlova, Jacek Krzywinski, Vit Letal, Georgiy O. Vaschenko, Michal Bittner, M. Stupka, R. Sobierajski
Publikováno v:
High-Power Laser Ablation V.
Ablation thresholds, etch rates, and quality of ablated structures often differ dramatically if a conventional, UV-Vis-IR laser delivers radiation energy onto a material surface in a short (nanosecond) or ultra-short (picosecond/femtosecond) pulses.
Autor:
Alessandra Benuzzi-Mounaix, Tomas Mocek, Jiri Skala, P. Piseri, Todd H. Hall, Hiroaki Nishimura, Tara Desai, M. Tomasini, Christelle Kadlec, Dimitri Batani, C. Olivotto, F. Strati, J. Ullschmied, Yoshihiro Ochi, Paolo Milani, Bozena Kralikova, E. Barborini, Michel Koenig, H. Stabile, G. Lucchini, Miroslav Pfeifer, A. R. Praeg
Publikováno v:
SPIE Proceedings.
Experiments on the Equation of State (EOS) of Carbon were performed at the PALS and LULl laboratories. We used Carbon samples with two different value of initial density, in order to explore a wider region of the phase diagram. We obtain experimental
Autor:
Dagmar Chvostova, F. P. Boody, A. Cejnarová, V. D. Korolev, Yu. L. Bakshaev, Krzysztof A. Tomaszewski, J. Kravarik, Jarmila Kodymova, V. I. Tumanov, R. Viskup, A. S. Chernenko, Libor Juha, M. I. Ivanov, Josef Krasa, Leszek Ryć, P. Kubes, A. R. Praeg, Marek Scholz
Publikováno v:
SPIE Proceedings.
The efficiency and threshold of ablation of polymethylmethacrylate (PMMA), polytetrafluoroethylene (PTFE), and monocrystalline silicon by single pulses of soft x-rays emitted from Z-pinch, plasma-focus, and laser-produced plasmas were investigated. T