Abdullah AlrushudEdgar SalazarGonzalo R. Arce2026-03-222026-03-22202510.1364/cosi.2025.jm3b.7https://doi.org/10.1364/cosi.2025.jm3b.7https://andeanlibrary.org/handle/123456789/78181We propose a grayscale coded illumination technique for compressive X-ray compton backscattering imaging. Results show a major improvement over binary illumination patterns in terms of peak signal-to-noise ratio and structural similarity index.GrayscaleOpticsPhysicsBinary numberMeasure (data warehouse)Compton scatteringSimilarity (geometry)Scale (ratio)Materials scienceBackscatter (email)article