Fast electron propagation and energy deposition in laser shock compressed plasmas

被引：7

作者：

Bernardinello, A ^{[1
]}

Batani, D

Masella, V

Hall, TA

Ellwi, S

Koenig, M

Benuzzi, A

Krishnan, J

Pisani, F

Djaoui, A

Norreys, P

Neely, D

Rose, S

Key, MH

Fews, P

机构：

[1] Univ Milan Bicocca, Dipartimento Fis G Occhialini, I-20122 Milan, Italy

[2] INFM, Milan, Italy

[3] Univ Essex, Colchester CO4 3SQ, Essex, England

[4] Ecole Polytech, CNRS, LULI, Palaiseau, France

[5] Rutherford Appleton Lab, Didcot OX11 0QX, Oxon, England

[6] Univ Bristol, Dept Phys, Bristol BS8 1TL, Avon, England

来源：

LASER AND PARTICLE BEAMS | 1999年 / 17卷 / 03期

关键词：

D O I：

10.1017/S0263034699173208

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The first experimental study of the propagation of electrons created by an intense laser in shock-compressed matter has been performed with the VULCAN laser facility at the Rutherford:Appleton Laboratory, to investigate one of the fundamental phases of the fast ignitor concept for inertial confinement fusion. Plastic plane targets were irradiated on one side with two pulsed laser beams, each with I approximate to 10(14) W/cm(2), t approximate to 2 us, E approximate to 80 J per pulse, to generate a planar shock wave; on the opposite side of the target, a chirped pulse amplification (CPA) laser beam(I approximate to 10(16) W/cm(2), t approximate to 3 ps, E approximate to 10 J) was focused to generate the fast electrons. The results show an increase of hot electron penetration in compressed matter with respect to an ordinary one. Experimental results have been analyzed with computer simulations.

引用

页码：519 / 528

页数：10

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