Types segmentation categorizes detector technologies, each contributing uniquely to overall market dynamics. Scintillation detectors, employing crystals such as NaI(Tl) or CsI, dominate legacy CT and nuclear medicine systems, representing roughly 35% of the technology mix due to their mature supply chain and proven performance. Semiconductor detectors—including CdTe, CZT, and silicon‑based sensors—are expanding rapidly, now covering about 30% of the market; their high quantum efficiency and compact form factor enable advanced digital radiography and low‑dose CT applications. Gas‑filled detectors (e.g., ionization chambers, proportional counters) retain niche relevance in high‑energy radiography, contributing near 15% as they offer robustness under extreme flux conditions. Photodiode arrays and Hybrid detectors (combining scintillator layers with semiconductor readout) together account for the remaining 20%, supporting emerging modalities such as photon‑counting CT and high‑resolution mammography. This taxonomy underscores how technology selection aligns with clinical requirements, cost structures, and regulatory pathways, shaping the competitive landscape of the ionizing radiation detector market.