Laser-plasma interaction physics for shock ignition.
In: EPJ Web of Conferences, 2013-12-15, Heft 59, S. 1-4
Online
Konferenz
Zugriff:
In the shock ignition scheme, the ICF target is first compressed with a long (nanosecond) pulse before creating a convergent shock with a short (~100 ps) pulse to ignite thermonuclear reactions. This short pulse is typically (~2.1010-1016 W/cm²) above LPI (Laser Plasma Instabilities) thresholds. The plasma is in a regime where the electron temperature is expected to be very high (2-4 keV) and the laser coupling to the plasma is not well understood. Emulating LPI in the corona requires large and hot plasmas produced by high-energy lasers. We conducted experiments on the LIL (Ligne d'Integration Laser, 10 kJ at 3ω) and the LULI2000 (0.4 kJ at 2ω) facilities, to approach these conditions and study absorption and LPI produced by a high intensity beam in preformed plasmas. After introducing the main risks associated with the short pulse propagation, we present the latest experiment we conducted on LPI in relevant conditions for shock ignition. [ABSTRACT FROM AUTHOR]
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Laser-plasma interaction physics for shock ignition.
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| Autor/in / Beteiligte Person: | Goyon, C. ; Depierreux, S. ; Michel, D. T. ; Loisel, G. ; Yahia, V. ; Masson-Laborde, P. E. ; Loiseau, P. ; Hüller, S. ; Borisenko, N. G. ; Orekhov, A. ; Nicolaï, P. ; Tikhonchuk, V. T. ; Labaune, C. ; Rosmej, O. |
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| Zeitschrift: | EPJ Web of Conferences, 2013-12-15, Heft 59, S. 1-4 |
| Quelle: | 2013, Issue 59, p1-4. 4p.; (2013-12-15) 59, S. 1-4 |
| Veröffentlichung: | 2013 |
| Medientyp: | Konferenz |
| ISSN: | 2101-6275 (print) |
| DOI: | 10.1051/epjconf/20135905006 |
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