Guiding of Relativistic Electron Beams in Solid Targets by Resistively Controlled Magnetic Fields

被引：54

作者：

Kar, S. ^{[1
]}

Robinson, A. P. L. ^{[2
]}

Carroll, D. C. ^{[3
]}

Lundh, O. ^{[4
]}

Markey, K. ^{[1
]}

McKenna, P. ^{[3
]}

Norreys, P. ^{[2
]}

Zepf, M. ^{[1
]}

机构：

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

[2] Rutherford Appleton Lab, Cent Laser Facil, Chilton OX11 0QX, England

[3] Univ Strathclyde, Dept Phys, Glasgow G4 0NG, Lanark, Scotland

[4] Lund Inst Technol, Dept Phys, S-22100 Lund, Sweden

来源：

PHYSICAL REVIEW LETTERS | 2009年 / 102卷 / 05期

基金：

英国工程与自然科学研究理事会;

关键词：

GENERATION; ABSORPTION; DENSITY; PLASMAS; PHYSICS; LASERS; ENERGY;

D O I：

10.1103/PhysRevLett.102.055001

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Guided transport of a relativistic electron beam in solid is achieved experimentally by exploiting the strong magnetic fields created at the interface of two metals of different electrical resistivities. This is of substantial relevance to the Fast Ignitor approach to fusion energy production [M. Tabak et al., Phys. Plasmas 12, 057305 (2005)], since it allows the electron deposition to be spatially tailored-thus adding substantial design flexibility and preventing inefficiencies due to electron beam spreading. In the experiment, optical transition radiation and thermal emission from the target rear surface provide a clear signature of the electron confinement within a high resistivity tin layer sandwiched transversely between two low resistivity aluminum slabs. The experimental data are found to agree well with numerical simulations.

引用

页数：4

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