Laser-Driven Fast Electron Collimation in Targets with Resistivity Boundary

Journal Article · Fri Sep 24 00:00:00 EDT 2010 · Physical Review Letters

DOI:https://doi.org/10.1103/PHYSREVLETT.105.135001· OSTI ID:21466981

Ramakrishna, B; Kar, S; Adams, D J; Markey, K; Zepf, M ^[1]; Robinson, A P. L.; Lancaster, K L; Green, J S; Norreys, P A ^[2]; Quinn, M N; Yuan, X H; McKenna, P ^[3]; Scott, R H. H. ^[2]; Schreiber, J ^[4]

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1. School of Mathematics and Physics, Queen's University of Belfast, Belfast, BT7 1NN (United Kingdom)
2. Central Laser Facility, Rutherford Appleton Laboratory, Chilton, Oxfordshire, OX11 0QX (United Kingdom)
3. SUPA, Department of Physics, University of Strathclyde, Glasgow G4 0NG (United Kingdom)
4. Blackett Laboratory, Imperial College London, Prince Consort Road, London SW7 2BZ (United Kingdom)

We demonstrate experimentally that the relativistic electron flow in a dense plasma can be efficiently confined and guided in targets exhibiting a high-resistivity-core-low-resistivity-cladding structure analogous to optical waveguides. The relativistic electron beam is shown to be confined to an area of the order of the core diameter (50 {mu}m), which has the potential to substantially enhance the coupling efficiency of electrons to the compressed fusion fuel in the Fast Ignitor fusion in full-scale fusion experiments.

• OSTI ID: 21466981
• Journal Information: Physical Review Letters, Vol. 105, Issue 13; Other Information: DOI: 10.1103/PhysRevLett.105.135001; (c) 2010 American Institute of Physics; ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
BEAM-PLASMA SYSTEMS
COUPLING
EFFICIENCY
ELECTRIC CONDUCTIVITY
ELECTRON BEAMS
ELECTRONS
ICF DEVICES
LASERS
PLASMA
PLASMA DENSITY
RELATIVISTIC RANGE
THERMONUCLEAR FUELS
BEAMS
ELECTRICAL PROPERTIES
ELEMENTARY PARTICLES
ENERGY RANGE
FERMIONS
FUELS
LEPTON BEAMS
LEPTONS
PARTICLE BEAMS
PHYSICAL PROPERTIES
THERMONUCLEAR DEVICES