Laser-plasma interaction physics for shock ignition

被引：1

作者：

Goyon, C. ^{[1
]}

Depierreux, S. ^{[1
]}

Michel, D. T. ^{[1
]}

Loisel, G. ^{[2
]}

Yahia, V. ^{[2
]}

Masson-Laborde, P. E. ^{[1
]}

Loiseau, P. ^{[1
]}

Hueller, S. ^{[3
]}

Borisenko, N. G. ^{[4
]}

Orekhov, A. ^{[4
]}

Rosmej, O. ^{[6
]}

Nicolai, P. ^{[5
]}

Tikhonchuk, V. T. ^{[5
]}

Labaune, C. ^{[2
]}

机构：

[1] CEA, DAM, DIF, F-91297 Arpajon, France

[2] Ecole Polytech, UPMC, CNRS, LULI,CEA, F-91128 Palaiseau, France

[3] Ecole Polytech, Ctr Phys Theori, F-91128 Palaiseau, France

[4] PN Lebedev Phys Inst, Moscow 119991, Russia

[5] Univ Bordeaux 1, CELIA, F-33405 Talence, France

[6] GSI Helmholtzzentrum Schwerionenforsch, D-64291 Darmstadt, Germany

来源：

IFSA 2011 - SEVENTH INTERNATIONAL CONFERENCE ON INERTIAL FUSION SCIENCES AND APPLICATIONS | 2013年 / 59卷

关键词：

D O I：

10.1051/epjconf/20135905006

中图分类号：

TL [原子能技术]; O571 [原子核物理学];

学科分类号：

0827 ; 082701 ;

摘要：

In the shock ignition scheme, the ICF target is first compressed with a long (nanosecond) pulse before creating a convergent shock with a short (similar to 100 ps) pulse to ignite thermonuclear reactions. This short pulse is typically (similar to 2.10(15)-10(16)W/cm(2)) 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 3 omega) and the LULI2000 (0.4 kJ at 2 omega) 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.

引用

页数：4

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