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Wyszukujesz frazę "laser shock" wg kryterium: Temat


Wyświetlanie 1-4 z 4
Tytuł:
Shock dynamics induced by double-spot laser irradiation of layered targets
Autorzy:
Aliverdiev, A. A.
Batani, D.
Amirova, A. A.
Benocci, R.
Dezulian, R.
Krouský, E.
Pfeifer, M.
Skala, J.
Dudzak, R.
Jakubowska, K.
Powiązania:
https://bibliotekanauki.pl/articles/971507.pdf
Data publikacji:
2015
Wydawca:
Instytut Chemii i Techniki Jądrowej
Tematy:
laser shock
high pressures
non-uniformity smoothing
Opis:
We studied the interaction of a double-spot laser beam with targets using the Prague Asterix Laser System (PALS) iodine laser working at 0.44 μm wavelength and intensity of about 1015 W/cm2. Shock breakout signals were recorder using time-resolved self-emission from target rear side of irradiated targets. We compared the behavior of pure Al targets and of targets with a foam layer on the laser side. Results have been simulated using hydrodynamic numerical codes.
Źródło:
Nukleonika; 2015, 60, 2; 213-219
0029-5922
1508-5791
Pojawia się w:
Nukleonika
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Carbon equation of state at high pressure: the role of the radiative transport in the impedance mismatch diagnostics
Autorzy:
Aliverdiev, A. A.
Batani, D.
Dezulian, R.
Vinci, T.
Powiązania:
https://bibliotekanauki.pl/articles/146666.pdf
Data publikacji:
2011
Wydawca:
Instytut Chemii i Techniki Jądrowej
Tematy:
equation of state (EOS)
high pressures
laser shock
Opis:
A series of numerical simulation was performed on the application of the impedance mismatch technique to the experimental study of the equation of state (EOS) of porous carbon. Our conclusion is that this technique is useful for such a study up to laser intensities of the order of 1014 W/cm2 (in second or third harmonic of the Nd-laser). However, the inclusion of the radiation transport is important for the correct description of the shock propagation and can affect the results.
Źródło:
Nukleonika; 2011, 56, 2; 165-169
0029-5922
1508-5791
Pojawia się w:
Nukleonika
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Generation of shock waves in dense plasmas by high-intensity laser pulses
Autorzy:
Pasley, J.
Bush, I. A.
Robinson, A. P. L.
Rajeev, P. P.
Mondal, S.
Lad, A. D.
Ahmed, S.
Narayanan, V.
Ravindra Kumar, D
Kingham, R. J.
Powiązania:
https://bibliotekanauki.pl/articles/147346.pdf
Data publikacji:
2015
Wydawca:
Instytut Chemii i Techniki Jądrowej
Tematy:
shock waves
radiation hydrodynamics
laser–plasma interactions
fast ignition
inertial confinement fusion
Doppler spectroscopy
Opis:
When intense short-pulse laser beams (I > 1022 W/m2, τ < 20 ps) interact with high density plasmas, strong shock waves are launched. These shock waves may be generated by a range of processes, and the relative significance of the various mechanisms driving the formation of these shock waves is not well understood. It is challenging to obtain experimental data on shock waves near the focus of such intense laser–plasma interactions. The hydrodynamics of such interactions is, however, of great importance to fast ignition based inertial confinement fusion schemes as it places limits upon the time available for depositing energy in the compressed fuel, and thereby directly affects the laser requirements. In this manuscript we present the results of magnetohydrodynamic simulations showing the formation of shock waves under such conditions, driven by the j × B force and the thermal pressure gradient (where j is the current density and B the magnetic field strength). The time it takes for shock waves to form is evaluated over a wide range of material and current densities. It is shown that the formation of intense relativistic electron current driven shock waves and other related hydrodynamic phenomena may be expected over time scales of relevance to intense laser–plasma experiments and the fast ignition approach to inertial confi nement fusion. A newly emerging technique for studying such interactions is also discussed. This approach is based upon Doppler spectroscopy and offers promise for investigating early time shock wave hydrodynamics launched by intense laser pulses.
Źródło:
Nukleonika; 2015, 60, 2; 193-198
0029-5922
1508-5791
Pojawia się w:
Nukleonika
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Experimental results on advanced inertial fusion schemes obtained within the HiPER project
Autorzy:
Batani, D.
Gizzi, L. A.
Koester, P.
Labate, L.
Honrubia, J.
Antonelli, L.
Morace, A.
Volpe, L.
Santos, J. J.
Schurtz, G.
Hulin, S.
Ribeyre, X.
Nicolai, P.
Vauzour, B.
Dorchies, F.
Nazarov, W.
Pasley, J.
Richetta, M.
Lancaster, K.
Spindloe, Ch.
Tolley, M.
Neely, D.
Kozlová, M.
Nejdl, J.
Rus, B.
Wołowski, J.
Badziak, J.
Powiązania:
https://bibliotekanauki.pl/articles/147696.pdf
Data publikacji:
2012
Wydawca:
Instytut Chemii i Techniki Jądrowej
Tematy:
advanced ignition schemes
fast ignition
shock ignition
inertial fusion
propagation of fast electrons
short-pulse ultra-high-intensity laser
shock compressed matter
cylindrical implosions
Opis:
This paper presents the results of experiments conducted within the Work Package 10 (fusion experimental programme) of the HiPER project. The aim of these experiments was to study the physics relevant for advanced ignition schemes for inertial confinement fusion, i.e. the fast ignition and the shock ignition. Such schemes allow to achieve a higher fusion gain compared to the indirect drive approach adopted in the National Ignition Facility in United States, which is important for the future inertial fusion energy reactors and for realising the inertial fusion with smaller facilities.
Źródło:
Nukleonika; 2012, 57, 1; 3-10
0029-5922
1508-5791
Pojawia się w:
Nukleonika
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-4 z 4

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