Magnetic collimation of petawatt driven fast electron beam for prospective fast ignition studies

S. Kar, D. Adams, M. Borghesi, K. Markey, B. Ramakrishna, M. Zepf, K. Lancaster, P. Norreys, A.P.L. Robinson, D.C. Carroll, P. McKenna, M. Quinn, X. Yuan, C. Bellei, J. Schreiber

Research output: Contribution to journalArticle

Abstract

Collimated transport of fast electron beam through solid density matter is one of the key issues behind the success of the fast ignition scheme by means of which the required amount of ignition energy can be delivered to the hot spot region of the compressed fuel. Here we report on a hot electron beam collimation scheme in solids by tactfully using the strong magnetic fields generated by an electrical resistivity gradient according to Faraday's law. This was accomplished by appropriately fabricating the targets in such a way that the electron beam is directed to flow in a metal which is embedded in a much lower resistivity and atomic number metal. Experimental results showed guided transport of hot electron beam over hundreds of microns length inside solid density plasma, which were obtained from two experiments examining the scheme for petawatt laser driven hot electron beam while employing various target configurations.

LanguageEnglish
Article number022041
Number of pages7
JournalJournal of Physics: Conference Series
Volume244
Issue numberPart 2
DOIs
Publication statusPublished - 1 Jan 2010

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collimation
ignition
electron beams
hot electrons
electrical resistivity
metals
plasma density
gradients
configurations
magnetic fields
lasers
energy

Keywords

  • petawatt driven fast electron beam
  • fast ignition scheme
  • plasma
  • electron beams

Cite this

Kar, S., Adams, D., Borghesi, M., Markey, K., Ramakrishna, B., Zepf, M., ... Schreiber, J. (2010). Magnetic collimation of petawatt driven fast electron beam for prospective fast ignition studies. Journal of Physics: Conference Series, 244(Part 2), [022041]. https://doi.org/10.1088/1742-6596/244/2/022041
Kar, S. ; Adams, D. ; Borghesi, M. ; Markey, K. ; Ramakrishna, B. ; Zepf, M. ; Lancaster, K. ; Norreys, P. ; Robinson, A.P.L. ; Carroll, D.C. ; McKenna, P. ; Quinn, M. ; Yuan, X. ; Bellei, C. ; Schreiber, J. / Magnetic collimation of petawatt driven fast electron beam for prospective fast ignition studies. In: Journal of Physics: Conference Series. 2010 ; Vol. 244, No. Part 2.
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Kar, S, Adams, D, Borghesi, M, Markey, K, Ramakrishna, B, Zepf, M, Lancaster, K, Norreys, P, Robinson, APL, Carroll, DC, McKenna, P, Quinn, M, Yuan, X, Bellei, C & Schreiber, J 2010, 'Magnetic collimation of petawatt driven fast electron beam for prospective fast ignition studies' Journal of Physics: Conference Series, vol. 244, no. Part 2, 022041. https://doi.org/10.1088/1742-6596/244/2/022041

Magnetic collimation of petawatt driven fast electron beam for prospective fast ignition studies. / Kar, S.; Adams, D.; Borghesi, M.; Markey, K.; Ramakrishna, B.; Zepf, M.; Lancaster, K.; Norreys, P.; Robinson, A.P.L.; Carroll, D.C.; McKenna, P.; Quinn, M.; Yuan, X.; Bellei, C.; Schreiber, J.

In: Journal of Physics: Conference Series, Vol. 244, No. Part 2, 022041, 01.01.2010.

Research output: Contribution to journalArticle

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T1 - Magnetic collimation of petawatt driven fast electron beam for prospective fast ignition studies

AU - Kar, S.

AU - Adams, D.

AU - Borghesi, M.

AU - Markey, K.

AU - Ramakrishna, B.

AU - Zepf, M.

AU - Lancaster, K.

AU - Norreys, P.

AU - Robinson, A.P.L.

AU - Carroll, D.C.

AU - McKenna, P.

AU - Quinn, M.

AU - Yuan, X.

AU - Bellei, C.

AU - Schreiber, J.

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