论文标题
基于电子梁的康普顿散射X射线源，用于探测高能密度物理
An electron-beam based Compton scattering x-ray source for probing high-energy-density physics
论文作者
论文摘要
研究了基于电子束的康普顿散射（ECOS）X射线源的物理基础，以用于在主要高能密度设施（例如欧米茄激光设施，国家点火设施和Z脉冲功率设施）的单发实验。单必须通过23至53米的电子束将短脉冲光学激光器散射并使散射光子的散射散射，可以通过散射短脉冲光学激光器来产生单晶（$δε/ε/ε<5 \％$）的源。散射光子的数量和光谱是根据电子数据包电荷，电子和激光脉冲持续时间，激光强度和碰撞几何形状计算的。在Omega Target Chamber Center 1毫米半径范围内，具有大于10 $^{10} $光子的源，可用的电子枪和激光技术是合理的。讨论了衍射，非弹性散射和成像实验的设计要求以及改善性能的机会。
The physics basis for an electron-beam based Compton scattering (ECOS) x-ray source is investigated for single-shot experiments at major high energy density facilities such as the Omega Laser Facility, National Ignition Facility, and Z pulsed power facility. A source of monoenergetic ($δε/ε< 5\%$) 10- to 50-keV x rays can be produced by scattering of a short-pulse optical laser by a 23- to 53-MeV electron beam and collimating the scattered photons. The number and spectrum of scattered photons is calculated as a function of electron packet charge, electron and laser pulse duration, laser intensity, and collision geometry. A source with greater than 10$^{10}$ photons in a 1-mm radius spot at the OMEGA target chamber center and 100-ps time resolution is plausible with the available electron gun and laser technology. Design requirements for diffraction, inelastic scattering and imaging experiments as well as opportunities for improved performance are discussed.
