Used as a scintillation material in radiation detectors, particularly in barium-doped cesium iodide detectors where it helps convert high-energy radiation into visible light. The ADP.Ba complex enhances luminescence efficiency, making it valuable in nuclear medicine imaging, environmental radiation monitoring, and high-energy physics experiments. Its fast response time and good energy resolution support accurate detection of gamma rays and X-rays. Also employed in specialized sensors for homeland security and nuclear safeguards due to its stability and sensitivity.