Sol-Gel Derived Neutron Detector Using a Lithiated Glass

65836 Avalanche Photodiodes (APDs) have excellent light sensing capabilities and could replace photomultiplier tubes in many large scintillator-based particle and gamma-ray detectors. Their solid-state nature renders them very compact and insensitive to magnetic fields. However, they cannot be manufactured cheaply in the large quantities required for detectors used in high energy physics. This project will modify the avalanche photodiode design in order to make it manufacturable by processing facilities equipped to produce CMOS electronics. The nature of avalanche photodiode production will change from a handmade labor-intensive process to a fully automated one, resulting in a large reduction in the cost, as well as an increase in photodiode availability. Phase I will produce prototype detectors using the innovative new design, and test the detector properties relevant to their use in high energy physics. Commercial Applications and Other Benefits as described by awardee: A new, low cost, highly sensitive photodiode, would be used as a component in various detector configurations useful in high energy physics. In addition, these devices will likely find application to other fields, such as medical imaging, nuclear verification, and biohazard detection.