List-mode experimental and GATE-simulated data from a 3D-CZT array for far-field hierarchical hybrid coded-aperture and Compton imaging

This dataset contains list-mode experimental measurements acquired with a 3D position-sensitive CZT dual-modality imager equipped with a MURA mask, together with GATE (v9.3) Monte Carlo simulated list-mode data generated using the same geometry. The data support replication of the results reported in “Far-field information-driven hierarchical hybrid coded-aperture and Compton gamma-ray imaging,” including photopeak selection, valid Compton-sequence extraction, and HH-MLEM reconstructions. The experimental subset includes point-source measurements of 137Cs and 60Co at a source-to-detector distance of 2 m and multiple source directions across the FCFOV and PCFOV. The simulated subset includes far-field 137Cs point-source data.