Charles G Waldman

Title: Innovations of Charles G Waldman

Introduction

Charles G Waldman is an accomplished inventor based in Allston, MA (US). He has made significant contributions to the field of nuclear spectroscopy, holding a total of 2 patents. His work focuses on enhancing the sensitivity and efficiency of nuclear spectrometer apparatuses.

Latest Patents

Waldman's latest patent is titled "Highly sensitive nuclear spectrometer apparatus and method." This innovative nuclear spectrometer employs asymmetrical weighting functions to optimize energy resolution and throughput. Photons striking a semiconductor detector generate current, which is amplified and converted to a voltage step. This step is then processed by a fast analog-to-digital converter (ADC) for pile-up rejection, alongside a slow ADC that examines low-energy pile-up. The detection of pile-up is achieved using a unique pair of leading and trailing weighting functions, which have sharp rising and falling edges that are nearly independent of photon energy. Digital triangular shaping is utilized to locate the step in the buffer, and asymmetry in the triangular response helps reject very low-energy pile-up. When a valid step is identified, the buffered data stream surrounding it is multiplied by an asymmetrical pair of weighting functions, allowing for precise photon energy measurement.

Career Highlights

Waldman is currently associated with Princeton Gamma Tech, Inc., where he continues to innovate in the field of nuclear spectroscopy. His expertise and inventions have significantly advanced the capabilities of nuclear spectrometers.

Collaborations

Waldman has collaborated with notable colleagues, including Richard B Mott and Daniel E Ungar, contributing to various projects and advancements in their field.

Conclusion

Charles G Waldman is a prominent inventor whose work in nuclear spectroscopy has led to significant advancements in the field. His innovative patents and collaborations reflect his dedication to enhancing scientific instrumentation.