THP036 　粒子源　 8月9日 大展示ホール 13:10 - 15:10

粒子加速応用に向けプラズマフォーカス装置によってプラズマ速度及びビーム電流値に対する外部磁場への影響

Influence of an external magnetic field on the velocity profile and beam current in a plasma focus device for particle acceleration

○スパダベッキャ ウルデリコ，志村 尚彦，佐古 貴行（東芝エネルギーシステムズ），竹崎 太智，柿沼 啓太，志熊 良樹，高橋 一匡，佐々木 徹，菊池 崇志（長岡技術科学大学）

○Ulderico Spadavecchia, Naohiko Shimura, Takayuki Sako (Toshiba Energy Systems), Taichi Takezaki, Keita Kakinuma, Yoshiki Shikuma, Kazumasa Takahashi, Toru Sasaki, Takashi Kikuchi (Nagaoka University of Technology)

Experiments with a plasma focus device (PFD) are being carried out for the understanding of the accelerating mechanisms in collisionless shocks, as a candidate for a new particle accelerating method for beam therapy applications. The current configuration operates under vacuum conditions (0.1Pa) and is capable of achieving high plasma velocities above 40km/s under different electrode configurations. A combination of two external tapered electrodes and two internal electrodes of conical tip, allowed us to evaluate the influence of the inter-electrode area in the accelerating performance of the PFD. The present study evaluates the effect of an external magnetic field on the plasma flow and the resulting beam current profile.