1National Institute of Advanced Industrial Science and Technology (Japan) 2Association of Super-Advanced Electronics Technologies (Japan) 3Japan Society for the Promotion of Science (Japan)
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Magnetic field shield for laser produced plasma (LPP) had been investigated. The interaction between expanding LPP and magnetic field is not described by Lorentz force, but, may be described by magneto hydro dynamics. When a magnetic field strength of 0.6T was placed between LPP and a faraday cup, attainment ratio of plasma to a faraday cup was decrease to 20%. The attainment ratio was decreased from 0.4 to 0.25 with varying the distance between the plasma and the magnetic field from 10 mm to 70 mm. And, it was observed that plasma detoured around a magnetic field.
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Gohta Niimi, Yoshifumi Ueno, Kentaro Nishigori, Tatsuya Aota, Hidehiko Yashiro, Toshihisa Tomie, "Experimental evaluation of stopping power of high-energy ions from laser-produced plasma by a magnetic field," Proc. SPIE 5037, Emerging Lithographic Technologies VII, (16 June 2003); https://doi.org/10.1117/12.483747