Stephanus Hubertus Leonardus Van Den Boom

Title: Innovations of Stephanus Hubertus Leonardus van den Boom

Introduction

Stephanus Hubertus Leonardus van den Boom, an accomplished inventor based in Geldrop, NL, has made significant contributions to the field of charged particle optics. With a portfolio that includes two patents, he is recognized for his innovative methods that enhance the functionality and efficiency of scientific instruments.

Latest Patents

Van den Boom's latest patents demonstrate his focus on improving measurement techniques and vacuum sealing mechanisms. One of his notable inventions is a method of measuring the temperature of a sample carrier in a charged particle-optical apparatus. This method observes the sample carrier using a beam of charged particles, providing vital information about its temperature. The innovation was inspired by the understanding that charged particle optical instruments, such as Transmission Electron Microscopes (TEM), Scanning Transmission Electron Microscopes (STEM), Scanning Electron Microscopes (SEM), and Focused Ion Beams (FIB), could detect temperature-related changes in the sample carrier. This invention features a preferred embodiment where the sample carrier contains two bimetals with different thermal expansion coefficients, which bend in opposite directions. The distance between these bimetals is effectively utilized as a thermometer.

The second patent focuses on an improved O-ring seal designed for high vacuum applications. Traditional O-ring seals often struggle with water permeation, particularly in instruments maintained at cryogenic temperatures. To address this issue, Van den Boom proposes a novel solution that involves placing the O-ring in a channel where dry gas, such as nitrogen, is blown. This design prevents water from permeating through the O-ring, effectively reducing base pressure and minimizing ice growth on critical components of instruments like cryogenic electron microscopes.

Career Highlights

Stephanus's inventive prowess is showcased through his work at FEI Company, where he has applied his technical knowledge to develop cutting-edge solutions in the field of microscopy and materials science. His patents have not only advanced scientific research but also contributed to enhancing the reliability of high-performance instruments.

Collaborations

Throughout his career, Van den Boom has collaborated with fellow innovators such as Pleun Dona and Laurens Franz Taemsz Kwakman. Together, they have contributed to significant advancements within their respective fields, demonstrating the power of teamwork in driving innovation.

Conclusion

Stephanus Hubertus Leonardus van den Boom stands out as a key figure in the realm of charged particle optics. His innovative patents highlight a commitment to enhancing measurement techniques and improving vacuum technology, ultimately facilitating advancements in scientific instrumentation. As he continues his work at FEI Company, Van den Boom remains dedicated to pushing the boundaries of technology and innovation.