Company Filing History:
Years Active: 2014-2017
Title: The Innovative Contributions of James F. Christian in Photodetection Technology
Introduction
James F. Christian, based in Waltham, MA, is a notable inventor with two patents under his name. His work is primarily centered around improving photodetection technologies, which have significant applications in various fields including radiation monitoring and optical sensing.
Latest Patents
James F. Christian's latest inventions include two influential patents. The first is a "Solid State Photomultiplier Using Buried P-N Junction," which is designed to detect single optical and radiation events with enhanced blue detection efficiency and reduced dark currents compared to earlier silicon SSPM devices. This innovative device utilizes a photodiode for single photon detection by creating a self-sustained avalanche. The unique architecture of the Geiger photodiode, or signal photon-counting avalanche diode, incorporates a buried doping layer to optimize the P-N junction for improved performance. The resulting design effectively limits induced bulk defects, contributing to better quantum efficiency and minimizing dark current.
The second patent, "Position Sensitive Solid-State Photomultipliers, Systems and Methods," details the development of an integrated silicon SSPM device. This device features a pixel unit comprising an array of over 2x2 P-N photodiodes on a common substrate. It includes a signal division network connected to each photodiode, capable of producing multiple output connections. This innovation also incorporates a processing unit to identify the active photodiode generating a signal, thereby optimizing its performance and application in varying settings.
Career Highlights
James F. Christian is currently employed at Radiation Monitoring Devices, Inc., where he continues to push the boundaries of photodetection technology. His contributions are critical to the advancements made in radiation monitoring, supporting industries that require precise detection systems.
Collaborations
Throughout his career, James has worked alongside esteemed colleagues such as Christopher Stapels and Erik Bjorn Johnson. These collaborations enhance the innovation process, fostering a productive environment for groundbreaking developments in photodetection devices.
Conclusion
James F. Christian's patents illustrate his immense impact on the field of photodetection, paving the way for future innovations in the industry. His dedication to improving technology for enhanced optical and radiation detection demonstrates the importance of ongoing research and development in this critical area.