无反转自由电子激光：双磁体漂移区的设计
Free-Electron Lasers Without Inversion: Design of Two-Magnet Drift Region
摘要：
提出了一种无反转自由电子激光（FELWI）漂移区的双磁体设计。通过直接计算电子通过漂移区的相移，我们证明了小信号增益集成的失谐是积极的，是成反比的“热”的电子束的能量扩散。给出了漂移区的色散和几何形状，以及对电子束质量的要求，包括横向尺寸和角展度。
英文摘要：
We propose a two-magnet design of a drift region for a free-electron laser without inversion (FELWI). By performing direct calculations of the phase shifts for electrons passing the drift region, we prove that the small-signal gain integrated over the detuning is positive and is inversely proportional to the energy spread of the ``hot'' electron beam. The dispersion and the geometry of the drift region are specified, and the requirements to the electron beam quality, including the transverse size and the angular spread, are found.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
