Sanghamitra Sen

Title: **Innovations of Sanghamitra Sen in Gamma Ray Detection and Impurity Extraction**

Introduction

Sanghamitra Sen, an accomplished inventor based in Ventura, California, has made significant contributions to the fields of material science and radiation detection. With a portfolio of two patents, Sen's work focuses on innovative methods to extract impurities from complex structures, as well as enhancing the resolution of gamma ray detectors.

Latest Patents

Sanghamitra Sen's latest patents address critical challenges in handling semiconductor materials and improving detector technology. The first patent is titled **"Extraction of impurities from structures containing mercury, cadmium, zinc, or tellurium."** This invention involves a method for extracting impurities from thin-film device structures like HgCdTe and CdTe by using a sink medium made of molten bismuth. This process ensures that impurities can effectively diffuse into the bismuth for removal while minimizing the loss of essential elements such as mercury, cadmium, zinc, and tellurium.

The second patent, **"Gamma ray detector with improved resolution and method of fabrication,"** provides a solution to enhance the performance of gamma ray detectors. The detector layer is engineered using the formula Hg.sub.x Cd.sub.1-x-y Zn.sub.y Te, which effectively addresses the issue of Cd vacancies known to degrade detector resolution. By limiting the percentage of mercury, this invention prevents early electron-hole recombination and enhances the efficiency of radiation detection.

Career Highlights

Throughout her career, Sanghamitra Sen has worked with leading technology companies, notably the Santa Barbara Research Center and Raytheon Company. Her experiences in these organizations have enabled her to refine her skills in research and innovation, driving advancements in gamma ray detection technology and materials engineering.

Collaborations

Sanghamitra Sen has collaborated with notable colleagues in her field, including David R. Rhiger and William J. Hamilton, Jr. Their combined expertise and insights have contributed to the successful development of James Sen's innovative patents, underscoring the importance of teamwork in scientific advancement.

Conclusion

Sanghamitra Sen's innovations represent significant strides in the areas of material science and radiation detection. Her patents not only improve the efficiency of gamma ray detectors but also offer practical solutions for the extraction of impurities from specialized structures. As technologies continue to evolve, Sen's work will undoubtedly play a critical role in shaping the future of these fields.