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Investigation of Early Plasma Evolution Induced by Ultrashort Laser Pulses
Published on: July 2, 2012
プラズマチャネル誘導を用いたレーザーウェイクフィールド加速器からの高品質の電子ビーム
C G R Geddes1, C S Toth, J Van Tilborg
1Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, California 94720, USA.
Nature
|October 1, 2004
まとめ
レーザー加速器は,粒子加速のためにプラズマ波を使用します. 新しい方法は,レーザーを誘導するためにプラズマチャネルを使用し,より長い加速距離と高品質の電子ビームを可能にします.
科学分野:
- プラズマ物理学のプラズマ物理学
- 粒子の加速が加速している.
- レーザー技術 レーザー技術
背景:
- レーザー駆動加速器は,従来の方法よりも高い加速場 (数百GVm−1) を提供しています.
- 制限されたレーザーパルス伝播距離は,加速長と電子束の質を制限します.
研究 の 目的:
- レーザー加速器の加速距離の制限を克服するために.
- レーザー加速器から高品質で高エネルギーの電子ビームを得るために.
主な方法:
- 熱烈なレーザーパルスを誘導するために,プリフォームされたプラズマ密度チャネルを使用しました.
- プラズマ内の拡張レーザーパルス伝播を有効にしました.
主要な成果:
- 数パーセントのエネルギー拡散と低い放出率を持つ電子ビームを実証した.
- 109個以上の電子が生成され,そのエネルギーは80 MeVを超えました.
結論:
- プラズマ密度チャネルにより,より長いレーザー伝播が可能になり,粒子加速が強化されます.
- この技術は,コンパクトで,調節可能で,高輝度の電子と放射線源の道を開く.
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