Hans Persoon

Title: Innovations of Hans Persoon in Cryogenic Cooling

Introduction

Hans Persoon is an accomplished inventor based in Waalre, Netherlands. He has made significant contributions to the field of cryogenic cooling, particularly with his innovative approach to vibration-free systems. His work is essential for enhancing the performance of analytical equipment, such as Transmission Electron Microscopes (TEM).

Latest Patents

Hans Persoon holds a patent for a groundbreaking invention titled "Vibration-free cryogenic cooling." This patent describes an apparatus and methods designed for vibration-free cryogenic cooling, which is suitable for TEM and other analytic equipment. The system includes a thermal battery that comprises a cryocooler, a thermal switch, a thermal cold storage reservoir, and a cold finger. The thermal reservoir is strategically mounted outside a sample chamber, while the cold finger ensures thermal coupling between the reservoir and a sample holder inside the chamber. The invention allows for regulated temperatures of the sample holder and sample through a heater or an inline variable thermal resistor. The cyclic phased operation of the system enables cooling of the reservoir, decoupling the cryocooler, and temperature-regulated passive vibration-free thermal energy extraction from the sample to the reservoir. This innovative system boasts a stand time of 12 hours at 20 K, showcasing its efficiency and effectiveness.

Career Highlights

Hans Persoon is associated with Fei Company, where he continues to develop and refine his inventions. His work has garnered attention for its practical applications in scientific research and technology.

Collaborations

Hans has collaborated with notable colleagues, including Hugo Van Leeuwen and Alphons Theophile Augusta Maria De Waele. Their combined expertise contributes to the advancement of cryogenic technologies.

Conclusion

Hans Persoon's contributions to the field of cryogenic cooling exemplify the importance of innovation in scientific research. His patented technology not only enhances the functionality of analytical equipment but also sets a new standard for vibration-free cooling systems.