Location History:
- Lancaster, PA (US) (1977 - 1986)
- East Hempfield Township, Lancaster County, PA (US) (1987)
Company Filing History:
Years Active: 1977-1987
Title: Arthur F. McDonie: Innovator in Photomultiplier Technology
Introduction
Arthur F. McDonie, a notable inventor based in Lancaster, PA, has made significant contributions to the field of photomultiplier technology. With a total of 14 patents to his name, McDonie has focused on innovations that enhance the efficiency and responsiveness of electron discharge devices.
Latest Patents
Among his recent innovations, McDonie has developed an "Electron discharge device having a narrow range spectral response," commonly referred to as a 'solar-blind' photomultiplier tube. This device features an envelope with a sidewall and an input faceplate composed of an ultraviolet transmitting filter. It utilizes a photoemissive cathode to produce photoelectrons in response to incoming radiation. However, the filter faceplate only allows ultraviolet light to reach the cathode, limiting the device's responsivity to wavelengths between 300 and less than 400 nanometers.
Another significant patent is for a "Photomultiplier tube having a high resistance dynode support spacer." This photomultiplier tube consists of an evacuated envelope containing a photocathode, an anode, and several spaced dynodes. The unique feature of this invention is the inclusion of parallel support spacers made of insulating material that hold the dynodes and anode in place. A chrome oxide layer with high resistance is applied to the support spacers, enhancing the overall performance of the device.
Career Highlights
Arthur F. McDonie has built a distinguished career at RCA Inc., where he has contributed extensively to the advancement of photomultiplier technologies. His innovative spirit and technical expertise have allowed him to pioneer several advancements in electron discharge devices, thereby positioning him as a leading figure in his field.
Collaborations
Throughout his career, McDonie has collaborated with notable peers, including Charles M. Tomasetti and Richard D. Faulkner. These collaborations have fostered a creative environment, leading to groundbreaking innovations in the photomultiplier industry.
Conclusion
Arthur F. McDonie exemplifies the spirit of innovation through his dedicated work in developing advanced photomultiplier technologies. With a focus on improving device efficiency and responsiveness, he continues to contribute invaluable insights to the field, impacting both research and practical applications in the realm of electron discharge devices.