The Institute of Scientific and Industrial Research, Osaka University


LAST UPDATE 2019/06/17

  • 研究者氏名
    Researcher Name

    細貝知直 Tomonao HOSOKAI
    教授 Professor
  • 所属
    Professional Affiliation

    The Institute of Scientific and Industrial Research, Osaka University

    Department of Beam Physics
  • 研究キーワード
    Research Keywords

    Laser plasma particle acceleration
    Laser-Plasma Interaction
    Ultra-short Intense laser pulses
Research Subject
Development of laser-driven particle accelerators

研究の背景 Background


Contribution of particle accelerators to the modern basic science, industry, and medicine is invaluable. From keV to GeV electron and hadron accelerators become ingrained in society everyday lives. However in recent years, accelerator development is continuously growing with new demands for higher energy and currents, for beams in femtosecond and atto-second ranges, for nanometer scaling and high fields. New solutions in the way of miniaturization of ordinary accelerators, which are typically national facility level and require a huge amount of the cost and huge location areas, are under developing with novel acceleration mechanisms exploiting ultra-high electric fields.

研究の目標 Outcome


The laser plasma accelerators that use the plasma waves exited in laser pulse wakes are studied. This technique is called the laser wake field acceleration. Our goal is to realize a GeV class laser accelerators via developing of strict plasma control technology based on insightful understanding of plasma and beam behaviors. At the same time, we will promote researches on the use of ultrashort and jitter free beams, which is a feature of laser plasma acceleration.

研究図Research Figure

Fig.1. Principle of Laser Wakefield Acceleration (LWFA).

Fig.2. Plasma channel guided LWFA that enables GeV-class acceleration of electron beams with hand-held size device. (Under development)

文献 / Publications

<解説>X線自由電子レーザーを目指したレーザー航跡場加速研究の現状, 細貝知直 他, レーザー研究, 45 (2), 71-76 (2017) N. Nakanii,, Phys. Rev. ST Accel. Beams, 18(2),  021303_1-6 (2015), T. Hosokai,, Appl. Phys. Lett., 96(12), 121501-1_3 (2010)