The global radiation detection, monitoring and safety market is projected to grow from USD 3.80 billion in 2026 to USD 5.68 billion by 2031, representing an 8.4% compound annual growth rate. ResearchAndMarkets.com attributes the expansion to wider radiation use in healthcare, nuclear-energy infrastructure investment, stricter safety compliance and security concerns. X-ray, computed tomography, positron emission tomography and radiotherapy applications are supporting demand, while growth in PET/CT scans, nuclear medicine and radiation therapy is identified as a major catalyst. Radiation detection and monitoring products held the largest product share in 2025, while detectors led the composition segment. Asia Pacific is expected to record significant growth, supported by industrialization, nuclear projects, healthcare investment and efforts to counter nuclear terrorism and illicit radioactive-material trafficking. The report identifies technological advances, including solid-state detectors, miniaturized devices and real-time monitoring platforms, as opportunities, while the cost of lead, workforce shortages, nuclear-energy alternatives, policy changes, phase-out programs and cybersecurity threats are among the constraints and challenges. Fortive, Thermo Fisher Scientific Inc., Mirion Technologies Inc., Fuji Electric Co., Ltd., Ludlum Measurements, Inc. and Ametek, Inc. are among the companies assessed.