Magnetic field generation during intense laser channelling in underdense plasma

被引：8

作者：

Smyth, A. G. ^{[1
]}

Sarri, G. ^{[1
]}

Vranic, M. ^{[2
]}

Amano, Y. ^{[3
]}

Doria, D. ^{[1
]}

Guillaume, E. ^{[2
]}

Habara, H. ^{[3
]}

Heathcote, R. ^{[4
]}

Hicks, G. ^{[5
]}

Najmudin, Z. ^{[5
]}

Nakamura, H. ^{[5
]}

Norreys, P. A. ^{[4
]}

Kar, S. ^{[1
]}

Silva, L. O. ^{[2
]}

Tanaka, K. A. ^{[3
]}

Vieira, J. ^{[2
]}

Borghesi, M. ^{[1
]}

机构：

[1] Queens Univ Belfast, Sch Math & Phys, Univ Rd, Belfast BT7 1NN, Antrim, North Ireland

[2] Univ Lisbon, Inst Super Tecn, GoLP IPFN, P-1049001 Lisbon, Portugal

[3] Osaka Univ, Grad Sch Engn, Suita, Osaka 5650871, Japan

[4] STFC Rutherford Appleton Lab, Didcot OX1 0QX, Oxon, England

[5] Imperial Coll London, Blackett Lab, Prince Consort Rd, London SW7 2BZ, England

来源：

PHYSICS OF PLASMAS | 2016年 / 23卷 / 06期

基金：

欧洲研究理事会; 英国工程与自然科学研究理事会; 英国科学技术设施理事会;

关键词：

PREFORMED PLASMA; PULSE; ACCELERATORS; DYNAMICS; DENSITY;

D O I：

10.1063/1.4953547

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

Channel formation during the propagation of a high-energy (120 J) and long duration (30 ps) laser pulse through an underdense deuterium plasma has been spatially and temporally resolved via means of a proton imaging technique, with intrinsic resolutions of a few mu m and a few ps, respectively. Conclusive proof is provided that strong azimuthally symmetric magnetic fields with a strength of around 0.5 MG are created inside the channel, consistent with the generation of a collimated beam of relativistic electrons. The inferred electron beam characteristics may have implications for the cone-free fast-ignition scheme of inertial confinement fusion. Published by AIP Publishing.

引用

页数：9

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