2022/02/20 by Yue Ma, Jianfei Hua, Ma, Yue +19 · 1 citation
Earth and Planetary Sciences · Physics and Astronomy · #Applied Physics (physics.app-ph) #FOS: Physical sciences #High-pressure geophysics and materials #Laser-Matter Interactions and Applications #Laser-Plasma Interactions and Diagnostics #Optics (physics.optics)
paper · pdf · doi:10.48550/arxiv.2202.09711
openalex publication_date 2022/02/20 · openalex created_date 2022/04/03 · openalex updated_date 2026/07/28
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(±5)/64(±3) keV and the single-shot photon yield of ∼1.1/1.3×107. 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(±3)%.