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

Kar, S. and Adams, D. and Borghesi, M. and Markey, K. and Ramakrishna, B. and Zepf, M. and Lancaster, K. and Norreys, P. and Robinson, A.P.L. and Carroll, D.C. and McKenna, P. and Quinn, M. and Yuan, X. and Bellei, C. and 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. ISSN 1742-6588 (https://doi.org/10.1088/1742-6596/244/2/022041)

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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.

  • Item type:Article
    ID code:67092
    Dates:
    Date
    Event
    1 January 2010
    Published
    Notes:Deposited under CC-BY 3.0 with permission of IOP Publishing Ltd.
    Subjects:Science > Physics > Plasma physics. Ionized gases
    Department:Faculty of Science > Physics
    Depositing user: Pure Administrator
    Date deposited:26 Feb 2019 07:55
    Last modified:09 Apr 2024 00:32
    URI:https://strathprints.strath.ac.uk/id/eprint/67092
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