论文标题
基于全光反式康普顿散射的紧凑极化X射线源
Compact polarized X-ray source based on all-optical inverse Compton scattering
论文作者
论文摘要
极化X射线源是许多领域的重要探针，例如荧光成像，磁显微镜和核物理学研究。基于激光Wakefield Accelerator（LWFA）的全光逆综合散射源（AOC）近年来由于其紧凑的量表和高性能，尤其是其产生两极化X射线的潜力，引起了人们的关注。在这里，基于等离子体摩擦的AOCS方案生成了极化可调的X射线。线性和循环极化的AOC脉冲是通过平均光子能量（$ \ pm $ 5）/64（$ \ pm $ 3）keV和$ \ sim $ 1.1/1.1/1.3 $ \ times10^7 $的单发光子产率和单发光子收益率而实现的。康普顿极化计旨在诊断光子极化状态，证明AOC的偏振性特性，并表明线性极化AOC的平均极化度为75（$ \ pm $ 3）％。
Polarized X-ray source is an important probe for many fields such as fluorescence imaging, magnetic microscopy, and nuclear physics research. All-optical inverse Compton scattering source (AOCS) based on laser wakefield accelerator (LWFA) has drawn great attention in recent years due to its compact scale and high performance, especially its potential to generate polarized X-rays. Here, polarization-tunable X-rays are generated by a plasma-mirror-based AOCS scheme. The linearly and circularly polarized AOCS pulses are achieved with the mean photon energy of 60($\pm$5)/64($\pm$3) keV and the single-shot photon yield of $\sim$1.1/1.3$\times10^7$. A Compton polarimeter is designed to diagnose the photon polarization states, demonstrating AOCS's polarization-tunable property, and indicating the average polarization degree of the linearly polarized AOCS is 75($\pm$3)%.
