Potential concepts of laser‐accelerators which can be applied to the spacecraft propulsion using a conventional technique were reviewed. Maximum ion energy of order tens of MeV through the acceleration was reported in recent studies. As for a proton beam accelerated up to 58 MeV, which was achieved in a recent study, its speed corresponds to 33 % of the speed of light and the specific impulse of order 107 sec. Also, a feasibility study of the utilization of these accelerators, based on the special theory of relativity, for space propulsion was conducted. It was shown that significantly high specific impulse can be obtained through this propulsion system for primary propulsion and attitude control applications. In addition, a preliminary experiment was conducted with an ultrashort‐pulse laser system. Induced impulse in the forward acceleration mode was observed using a 12‐μm thick Al foil as a target.


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    Titel :

    Fundamental Study of a Relativistic Laser‐Accelerated Plasma Thruster


    Beteiligte:
    Horisawa, Hideyuki (Autor:in) / Kuramoto, Hideaki (Autor:in) / Oyaizu, Keishi (Autor:in) / Uchida, Naoki (Autor:in) / Kimura, Itsuro (Autor:in) / Pakhomov, Andrew V. (Herausgeber:in)

    Kongress:

    BEAMED ENERGY PROPULSION: First International Symposium on Beamed Energy Propulsion ; 2002 ; Huntsville, Alabama (USA)


    Erschienen in:

    AIP Conference Proceedings ; 664 , 1 ; 411-422


    Erscheinungsdatum :

    14.05.2003


    Format / Umfang :

    12 pages





    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



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