Gerard Visser

Title: Innovations by Gerard Visser in Imaging Technology

Introduction

Gerard Visser is an accomplished inventor based in Bloomington, IN (US). He has made significant contributions to the field of imaging technology, holding a total of 5 patents. His work focuses on developing advanced sensors and integrated circuits that enhance imaging capabilities across various applications.

Latest Patents

One of Gerard's latest patents is an integrated circuit and sensor for imaging. This innovation provides new sensors and different embodiments of multi-channel integrated circuits. The high energy and spatial resolution sensors utilize both solid-state and scintillator detectors. Each channel of the readout chip incorporates low noise charge sensitive preamplifiers at its input, followed by additional circuitry. These embodiments are designed to produce high energy and/or spatial resolution two-dimensional and three-dimensional imaging for a wide range of applications. Some applications may require fast data acquisition, while others may need ultra-high energy resolution or very high contrast. The innovations address various issues relevant to two and three-dimensional medical and industrial imaging.

Another notable patent is the X-ray and gamma ray detector readout system. This development focuses on high-resolution, compact PET (positron emission tomography) imagers based on LSO (lutetium ortho-oxysilicate) scintillator and avalanche photodiode (APD) arrays. The goal is to achieve sufficient timing and energy resolution at a low power level, specifically less than about 30 mW per channel. A simple leading edge level crossing discriminator is employed, combined with a transimpedance preamplifier. The APD used has a gain of approximately 1,000, allowing for increased speed and power efficiency. A prototype has been constructed, achieving impressive timing and energy resolution metrics while operating at a low power level.

Career Highlights

Gerard Visser is currently associated with Nova R&D, Inc., where he continues to innovate in the field of imaging technology. His work has led to advancements that are applicable in various sectors, including medical imaging, security, and astrophysics.

Collaborations

Gerard collaborates with talented individuals such as Tumay O Tumer and Martin Clajus, contributing to the success of their projects and innovations.

Conclusion

Gerard Visser's contributions to imaging technology through his patents and work at Nova R&D, Inc. highlight his role as a significant inventor in