论文标题
根据中等相对论的电子束中的两种衰变和向后的拉曼散射的软X射线生成
Soft x-ray generation based on the two-plasmon decay and the backward Raman scattering in a moderately relativistic electron beam
论文作者
论文摘要
提出了软透明辐射方案。在该方案中，中等强度的激光通过相对论电子束中的两播衰减激发了等离子。当第二激光沿相反方向遇到电子束时，它通过向后的拉曼散射发射柔软的X射线。我们的分析表明，这种散射的有效横截面高于汤姆森散射，并且在最佳情况下，从泵激光到软X射线的转化效率可能很高。使用持续时间为1-100 pico秒的等离子体泵和密度为10^18-10^19的电子束，能量为1-20 meV，可以以10 nm至300 nm的柔和X射线为5 nm至300 nm，持续时间为10 femto秒至1 pico-second，可以在电子束的方向上发射。讨论了其他方案计划的优势。
A scheme of soft-xray radiation is proposed. In the scheme, a moderately intense laser excites plasmons via the two-plasmon decay in a relativistic electron beam. As the second laser encounters the electron beam in the opposite direction, it emits soft x-rays via the backward Raman scattering. Our analysis suggests that the effective cross-section of this scattering is higher than the Thomson scattering and that the conversion efficiency from the pump laser to the soft x-ray could be very high in the optimal scenario. USing the plasmon pump with duration of 1-100 pico-second and the electron beam with density of 10^18-10^19 per cc and energy of 1-20 MeV, soft x-ray of 5 nm to 300 nm with the duration of 10 femto seconds to 1 pico-second can be emitted in the direction of the electron beam. Advantages of the scheme of other schemes are discussed.
