Laser-driven fast electron collimation in targets with resistivity boundary

B. Ramakrishna; S. Kar; A. P. L. Robinson; D. J. Adams; K. Markey; M. N. Quinn; X. H. Yuan; P. McKenna; K. L. Lancaster; J. S. Green; R. H. H. Scott; P. A. Norreys; J. Schreiber; M. Zepf

doi:10.1103/PhysRevLett.105.135001

Laser-driven fast electron collimation in targets with resistivity boundary

B. Ramakrishna, S. Kar, A. P. L. Robinson, D. J. Adams, K. Markey, M. N. Quinn, X. H. Yuan, P. McKenna, K. L. Lancaster, J. S. Green, R. H. H. Scott, P. A. Norreys, J. Schreiber, M. Zepf

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Abstract

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.

Original language	English
Article number	135001
Number of pages	4
Journal	Physical Review Letters
Volume	105
Issue number	13
DOIs	https://doi.org/10.1103/PhysRevLett.105.135001
Publication status	Published - 20 Sep 2010

Keywords

denisty plasma
solid targets
fast igniter
pulses
fusion

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10.1103/PhysRevLett.105.135001

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KEY PHYSICS FOR INERTIAL CONFINEMENT DIAGNOSED BY ION EMISSION
McKenna, P.
EPSRC (Engineering and Physical Sciences Research Council)
1/10/07 → 30/09/11
Project: Research

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Ramakrishna, B., Kar, S., Robinson, A. P. L., Adams, D. J., Markey, K., Quinn, M. N., Yuan, X. H., McKenna, P., Lancaster, K. L., Green, J. S., Scott, R. H. H., Norreys, P. A., Schreiber, J., & Zepf, M. (2010). Laser-driven fast electron collimation in targets with resistivity boundary. Physical Review Letters, 105(13), [135001 ]. https://doi.org/10.1103/PhysRevLett.105.135001

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title = "Laser-driven fast electron collimation in targets with resistivity boundary",

abstract = "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.",

keywords = "denisty plasma, solid targets, fast igniter, pulses, fusion",

author = "B. Ramakrishna and S. Kar and Robinson, {A. P. L.} and Adams, {D. J.} and K. Markey and Quinn, {M. N.} and Yuan, {X. H.} and P. McKenna and Lancaster, {K. L.} and Green, {J. S.} and Scott, {R. H. H.} and Norreys, {P. A.} and J. Schreiber and M. Zepf",

year = "2010",

month = sep,

day = "20",

doi = "10.1103/PhysRevLett.105.135001",

language = "English",

volume = "105",

journal = "Physical Review Letters",

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TY - JOUR

T1 - Laser-driven fast electron collimation in targets with resistivity boundary

AU - Ramakrishna, B.

AU - Kar, S.

AU - Robinson, A. P. L.

AU - Adams, D. J.

AU - Markey, K.

AU - Quinn, M. N.

AU - Yuan, X. H.

AU - McKenna, P.

AU - Lancaster, K. L.

AU - Green, J. S.

AU - Scott, R. H. H.

AU - Norreys, P. A.

AU - Schreiber, J.

AU - Zepf, M.

PY - 2010/9/20

Y1 - 2010/9/20

N2 - 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.

AB - 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.

KW - denisty plasma

KW - solid targets

KW - fast igniter

KW - pulses

KW - fusion

U2 - 10.1103/PhysRevLett.105.135001

DO - 10.1103/PhysRevLett.105.135001

M3 - Article

VL - 105

JO - Physical Review Letters

JF - Physical Review Letters

SN - 0031-9007

IS - 13

M1 - 135001

ER -

Laser-driven fast electron collimation in targets with resistivity boundary

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Keywords

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