V. Sriskaran, J. Alozy, R. Ballabriga, M. Campbell, P. Christodoulou, E. Heijne, L. Tlustos et al.: High-rate, high-resolution single photon X-ray imaging: Medipix4, a large 4-side buttable pixel readout chip with high granularity and spectroscopic capabilities. Journal of Instrumentation 19(02), P02024 (2024). doi:10.1088/1748-0221/19/02/P02024