Guiding of relativistic electron beams in dense matter by laser-driven magnetostatic fields

被引：83

作者：

Bailly-Grandvaux, M. ^{[1
]}

Santos, J. J. ^{[1
]}

Bellei, C. ^{[1
]}

Forestier-Colleoni, P. ^{[1
]}

Fujioka, S. ^{[2
]}

Giuffrida, L. ^{[1
]}

Honrubia, J. J. ^{[3
]}

Batani, D. ^{[1
]}

Bouillaud, R. ^{[1
]}

Chevrot, M. ^{[4
]}

Cross, J. E. ^{[5
]}

Crowston, R. ^{[6
]}

Dorard, S. ^{[4
]}

Dubois, J. -L. ^{[1
]}

Ehret, M. ^{[1
,7
]}

Gregori, G. ^{[5
]}

Hulin, S. ^{[1
]}

Kojima, S. ^{[2
]}

Loyez, E. ^{[4
]}

Marques, J. -R. ^{[4
]}

Morace, A. ^{[2
]}

Nicolai, Ph. ^{[1
]}

Roth, M. ^{[7
]}

Sakata, S. ^{[2
]}

Schaumann, G. ^{[7
]}

Serres, F. ^{[4
]}

Servel, J. ^{[1
]}

Tikhonchuk, V. T. ^{[1
]}

Woolsey, N. ^{[6
]}

Zhang, Z. ^{[2
]}

机构：

[1] Univ Bordeaux, CNRS, CEA, CELIA,UMR 5107, F-33405 Talence, France

[2] Osaka Univ, Inst Laser Engn, 2-6 Yamada Oka, Suita, Osaka 5650871, Japan

[3] Univ Politecn Madrid, ETSI Aeronaut & Espacio, Plaza Cardenal Cisneros 3, E-28040 Madrid, Spain

[4] UPMC Sorbonne Univ, Ecole Polytech, Univ Paris Saclay, LULI,UMR 7605,CNRS,CEA, F-91128 Palaiseau, France

[5] Univ Oxford, Dept Phys, Parks Rd, Oxford OX1 3PU, England

[6] Univ York, Dept Phys, Heslington YO10 5DD, England

[7] Tech Univ Darmstadt, Inst Kernphys, Schlossgartenstr 9, D-64289 Darmstadt, Germany

来源：

NATURE COMMUNICATIONS | 2018年 / 9卷

基金：

英国工程与自然科学研究理事会;

关键词：

STRONG MAGNETIC-FIELD; TRANSPORT; IGNITION; TARGETS; PULSE; GAIN;

D O I：

10.1038/s41467-017-02641-7

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Intense lasers interacting with dense targets accelerate relativistic electron beams, which transport part of the laser energy into the target depth. However, the overall laser-to-target energy coupling efficiency is impaired by the large divergence of the electron beam, intrinsic to the laser-plasma interaction. Here we demonstrate that an efficient guiding of MeV electrons with about 30 MA current in solid matter is obtained by imposing a laser-driven longitudinal magnetostatic field of 600 T. In the magnetized conditions the transported energy density and the peak background electron temperature at the 60-mu m-thick target's rear surface rise by about a factor of five, as unfolded from benchmarked simulations. Such an improvement of energy-density flux through dense matter paves the ground for advances in laser-driven intense sources of energetic particles and radiation, driving matter to extreme temperatures, reaching states relevant for planetary or stellar science as yet inaccessible at the laboratory scale and achieving high-gain laser-driven thermonuclear fusion.

引用

页数：8

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[1] Guiding of relativistic electron beams in dense matter by laser-driven magnetostatic fields
M. Bailly-Grandvaux
J. J. Santos
C. Bellei
P. Forestier-Colleoni
S. Fujioka
L. Giuffrida
J. J. Honrubia
D. Batani
R. Bouillaud
M. Chevrot
J. E. Cross
R. Crowston
S. Dorard
J.-L. Dubois
M. Ehret
G. Gregori
S. Hulin
S. Kojima
E. Loyez
J.-R. Marquès
A. Morace
Ph. Nicolaï
M. Roth
S. Sakata
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J. Servel
V. T. Tikhonchuk
N. Woolsey
Z. Zhang
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