Nicholas Mascarenhas

Title: Innovations by Nicholas Mascarenhas

Introduction

Nicholas Mascarenhas is an accomplished inventor based in Livermore, CA (US). He has made significant contributions to the field of neutron detection, holding a total of 3 patents. His work focuses on improving the efficiency and resolution of neutron scatter cameras, which are crucial for detecting fast fission neutrons from special nuclear material sources.

Latest Patents

One of his latest patents is a method for improving the angular resolution of a neutron scatter camera. This innovative instrument directly images fast fission neutrons, enhancing neutron detection efficiency. The new technique replaces the traditional time-of-flight (TOF) method with a system that utilizes recoil proton energy deposited in the second of two scatter planes. By adjusting the distance between these planes, Mascarenhas has achieved a remarkable improvement in angular resolution, reducing it from about 12° to approximately 10° by doubling the separation distance from 20 cm to 40 cm. Further increasing the distance to 80 cm has led to an additional enhancement, achieving an angular resolution of about 6° without the need for extra detectors or electronics.

Another significant patent is the neutron scatter camera for improved neutron detection. This instrument also directly images fast fission neutrons, achieving up to a 170% improvement in detection efficiency by repositioning the two planes closer together. Although this configuration results in diminished angular resolution, it remains effective for applications where modest directionality is sufficient to identify potential threats.

Career Highlights

Nicholas Mascarenhas is currently employed at Sandia Corporation, where he continues to develop innovative technologies in neutron detection. His work has been instrumental in advancing the capabilities of neutron scatter cameras, making them more efficient and effective for various applications.

Collaborations

He collaborates with notable colleagues, including James S. Brennan and Peter Marleau, who contribute to the research and development efforts at Sandia Corporation.

Conclusion

Nicholas Mascarenhas is a prominent inventor whose work in neutron detection has led to significant advancements in the field. His innovative patents reflect his commitment to improving detection technologies, making a lasting impact on safety and security applications.