Closed cycle cryocooler provides liquid helium alternative

Many labs need a robust solution for freezing samples. Janis Research’s PTSHI-950-LT 1.5 K Continuous Closed Cycle Refrigerator Cryostat operates continuously from 1.5°K to 300°K—450°K optional—and is a cryogen-free, turnkey alternative to liquid helium. Featuring push-button operation, including sample temperature adjustment, this tip loading refrigerator can locate a sample in either static exchange gas or vacuum and users can easily change it while the system iso operating. It can achieve 1.5°K in fewer than eight hours and has a 50.8 mm I.D. sample chamber—optional to 100 mm—and can be designed to customer specifications. Janis Research Co, LLC