Copper halide-based portable personal dosimeter for real-time X-ray monitoring

With an increasing demand for radiation detection devices in diverse sectors such as healthcare, industrial safety, and environmental monitoring, there is an urgent need for portable and affordable personal dosimeters. We demonstrate a Mn-doped Cs₃Cu₂I₅ metal halide portable personal dosimeter for X-ray detection. The device is specifically tailored for individuals working in medical and security environments, providing a crucial safety measure when exposed to scattered X-ray beams. The portable dosimeter has a compact size of 20 × 20 mm and is highly sensitive to X-ray radiation. Equipped with photocurrent readout circuitry and advanced signal processing, our device ensures precise real-time monitoring of X-ray radiation, achieving a low-dose detection capability of 0.1 nGy/s. The device surpasses state-of-the-art personal dosimeters with its fast low-dose detection and easy readout using a mobile phone app, ensuring accurate measurements at minimum radiation levels. The device's compact size and low power consumption make it ideal for dosimetry applications.