2025/04/16 by I. J. M. van Elk, van Elk, I. J. M., C. W. Sweers +17 · 3 citations
Materials Science · Physics and Astronomy · #Accelerator Physics (physics.acc-ph) #Advanced X-ray Imaging Techniques #FOS: Physical sciences #Laser-Plasma Interactions and Diagnostics #Optics (physics.optics) #Radiation Shielding Materials Analysis
paper · pdf · doi:10.48550/arxiv.2504.11897
openalex publication_date 2025/04/16 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
In this paper, we present the first measurements of x-rays produced with a compact, narrowband, and tunable inverse Compton scattering-based x-ray source, developed at Eindhoven University of Technology. A flux of 1.2 ⋅ 103 photons per shot was measured, in agreement with simulations. Using a high-resolution spectral camera, we show that the photon energy can be tuned continuously from 5.8~keV to 10.7~keV with a bandwidth of 4%. The measured x-ray pulse length was in the picosecond range. Additionally, we show that the source allows full control over the x-ray polarization control. By optimizing experimental parameters, implementing improvements to the setup and further conditioning of the accelerator structure, a brilliance of 1012 photons/(s × mrad2 × mm2 × 0.1% BW) can be achieved, with photon energies up to 40 keV. Because the complete electron beamline fits on a single optical table, it is suitable as an in-house x-ray source for university laboratories, industrial production lines, museums, and hospitals.