...However, this method does not heat the plasma to more than tens of millions of degrees, so additional heat is required. Effective means of additional heat include neutral beam injection (abbreviated as NBI) and radio frequency heating. A neutral particle beam is a neutral beam of fuel material D and T accelerated to about 100 keV. Since it has no electric charge, it is not hindered by the strong confining magnetic field and can be injected into the plasma from the outside across the magnetic field lines, which causes collisions and heating of the plasma particles. ... *Some of the terms used in this article that refer to "neutral beam injection" are listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…しかしこの方法ではプラズマは数千万度程度以上には加熱されないため,さらに追加熱が必要とされる。追加熱の手段としては中性粒子ビームneutral beam injection(略称NBI)とか高周波加熱が有効である。 中性粒子ビームとは,100keV程度に加速された燃料物質D,Tの中性状態のビームであって,電荷をもっていないため強い閉込め磁界にじゃまされることなく,磁力線を横切って外部からプラズマ内に打ち込むことができ,これによってプラズマ粒子は衝突を受けて加熱される。… ※「neutral beam injection」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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