Observations of the filamentation of high-intensity laser-produced electron beams

M. S. Wei; F. N. Beg; E. L. Clark; A. E. Dangor; R. G. Evans; A. Gopal; K. W.D. Ledingham; P. McKenna; P. A. Norreys; M. Tatarakis; M. Zepf; K. Krushelnick

doi:10.1103/PhysRevE.70.056412

Observations of the filamentation of high-intensity laser-produced electron beams

M. S. Wei^*, F. N. Beg, E. L. Clark, A. E. Dangor, R. G. Evans, A. Gopal, K. W.D. Ledingham, P. McKenna, P. A. Norreys, M. Tatarakis, M. Zepf, K. Krushelnick

^*Corresponding author for this work

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Abstract

The structure of the hot electron beams emitted in laser-solid target interactions was analyzed. It was observed that electron beams were emitted from the rear of thin solid targets irradiated by a high-intensity short-pulse laser. It was shown that the most important condition in which electron beam filamentation due to Weibel-like instabilities become a factor were situations where large regions of low-density plasma exist. The results suggest that Weibel-like instabilities might not be important for the fast-ignitor scheme.

Original language	English
Article number	056412
Number of pages	6
Journal	Physical Review E - Statistical, Nonlinear, and Soft Matter Physics
Volume	70
Issue number	5
DOIs	https://doi.org/10.1103/PhysRevE.70.056412
Publication status	Published - 1 Nov 2004

Keywords

filamented electron beams
laser-generated beam
high-intensity laser

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10.1103/PhysRevE.70.056412

Wei-etal-PRE2014-Observations-filamentation-high-intensity-laser-produced-electron-beamsFinal published version, 585 KB

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Wei, M. S., Beg, F. N., Clark, E. L., Dangor, A. E., Evans, R. G., Gopal, A., Ledingham, K. W. D., McKenna, P., Norreys, P. A., Tatarakis, M., Zepf, M., & Krushelnick, K. (2004). Observations of the filamentation of high-intensity laser-produced electron beams. Physical Review E - Statistical, Nonlinear, and Soft Matter Physics, 70(5), Article 056412. https://doi.org/10.1103/PhysRevE.70.056412

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abstract = "The structure of the hot electron beams emitted in laser-solid target interactions was analyzed. It was observed that electron beams were emitted from the rear of thin solid targets irradiated by a high-intensity short-pulse laser. It was shown that the most important condition in which electron beam filamentation due to Weibel-like instabilities become a factor were situations where large regions of low-density plasma exist. The results suggest that Weibel-like instabilities might not be important for the fast-ignitor scheme.",

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author = "Wei, {M. S.} and Beg, {F. N.} and Clark, {E. L.} and Dangor, {A. E.} and Evans, {R. G.} and A. Gopal and Ledingham, {K. W.D.} and P. McKenna and Norreys, {P. A.} and M. Tatarakis and M. Zepf and K. Krushelnick",

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AU - Wei, M. S.

AU - Beg, F. N.

AU - Clark, E. L.

AU - Dangor, A. E.

AU - Evans, R. G.

AU - Gopal, A.

AU - Ledingham, K. W.D.

AU - McKenna, P.

AU - Norreys, P. A.

AU - Tatarakis, M.

AU - Zepf, M.

AU - Krushelnick, K.

PY - 2004/11/1

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AB - The structure of the hot electron beams emitted in laser-solid target interactions was analyzed. It was observed that electron beams were emitted from the rear of thin solid targets irradiated by a high-intensity short-pulse laser. It was shown that the most important condition in which electron beam filamentation due to Weibel-like instabilities become a factor were situations where large regions of low-density plasma exist. The results suggest that Weibel-like instabilities might not be important for the fast-ignitor scheme.

KW - filamented electron beams

KW - laser-generated beam

KW - high-intensity laser

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Observations of the filamentation of high-intensity laser-produced electron beams

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Keywords

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