Low Vibration Cooling Technology for IR Detectors

Cutting-edge space detector technologies rely on low noise sensors that require operation at extremely low temperatures and with virtually no vibration. Examples of these technologies include infrared detectors and low noise amplifiers. Future deep space missions, including the Habitable Worlds Observatory, will benefit from enhanced cryocooler technology that delivers efficient low temperature cooling with virtually no vibration. On this program, we will develop an ultra low vibration cryocooler configured for the thermal and jitter requirements needed for deep space telescopes similar to the Habitable Worlds Observatory. Our cryocooler is a hybrid cryocooler that simultaneously delivers 100 mW at 4.5 K for cooling a lower temperature cryocooler and several watts of cooling at higher temperatures for intercepting heat. The focus of the effort will be cycle optimization, design and demonstrations for low emitted vibrations. Successful completion of the effort will allow advanced detector technologies to be utilized on future space science missions.