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Choi, I.W.

Paper Title Page
THPD039 Proton Generation Driven by a High Intensity Laser Using a Thin-foil Target 4366
 
  • A. Sagisaka, P.R. Bolton, S.V. Bulanov, H. Daido, T. Esirkepov, T. Hori, S. Kanazawa, H. Kiriyama, K. Kondo, S. Kondo, M. Mori, Y. Nakai, M. Nishiuchi, K. Ogura, H. Okada, S. Orimo, A.S. Pirozhkov, H. Sakaki, F. Sasao, H. Sasao, T. Shimomura, A. Sugiyama, H. Sugiyama, M. Tampo, M. Tanoue, D. Wakai, A. Yogo
    JAEA, Kyoto
  • I.W. Choi, J. Lee
    APRI-GIST, Gwangju
  • H. Nagatomo
    ILE Osaka, Suita
  • K. Nemoto, Y. Oishi
    Central Research Institute of Electric Power Industry, Yokosuka-shi, Kanagawa
  
 

High-in­ten­si­ty laser and thin-foil in­ter­ac­tions pro­duce high-en­er­gy par­ti­cles, hard x-ray, high-or­der har­mon­ics, and ter­a­hertz ra­di­a­tion. A pro­ton beam driv­en by a high-in­ten­si­ty laser has re­ceived at­ten­tion as a com­pact ion source for med­i­cal ap­pli­ca­tions. We have per­formed the high in­ten­si­ty laser-mat­ter in­ter­ac­tion ex­per­i­ments using a thin-foil tar­get ir­ra­di­at­ed by Ti:sap­phire laser (J-KAREN) at JAEA. In this laser sys­tem, the pulse du­ra­tion is 40 fs (FWHM). The laser beam is fo­cused by an off-ax­is parabol­ic mir­ror at the tar­get. The es­ti­mat­ed peak in­ten­si­ty is ~5x1019 W/cm2. We have de­vel­oped on-line real time mon­i­tors such as a time-of-flight pro­ton spec­trom­e­ter which is placed be­hind the tar­get and in­ter­fer­om­e­ter for elec­tron den­si­ty pro­file mea­sure­ment of pre­formed plas­ma. We ob­served the max­i­mum pro­ton en­er­gy of ~7 MeV.