The possibility of using intense relativistic electron beams (REBs) for heating plasmas in open systems is discussed. Within this context the following three sets of problems are discussed: REB transport in a vacuum with a strong magnetic field; beam equilibrium, stability and critical currents in a vacuum. Beam transport in a plasma; charge and current neutralization of the beam; reverse-current heating of the plasma, and macroscopic REB instabilities in the plasma. The theory of collective relaxation of REBs in a plasma, including quasi-linear and non-linear relaxation models; the role of plasma non-uniformity, and macroscopic effects during REB relaxation.
強力な相対論的電子ビーム（REB）を用いて開放系プラズマを加熱する可能性について論じる。この文脈において、以下の3つの問題群について考察する：強磁場中の真空中でのREB輸送；真空中でのビーム平衡、安定性、および臨界電流。プラズマ中のビーム輸送；ビームの電荷中和および電流中和；プラズマ中の逆電流加熱、および巨視的REB不安定性。プラズマ中のREBの集団緩和理論（準線形および非線形緩和モデルを含む）；プラズマの非一様性の役割、およびREB緩和中の巨視的効果。