Cryosecure Compressor Power Control

• Microprocessor controlled
• Protection against possible failure due to power outage
• Wide selection of restarting time intervals
• LED indicators show system status at a glance
• Battery backup

When germanium detectors are cooled with an electro-mechanical cooler, such as the ICS-P4 Integrated Cryocooling System for PopTop HPGe Detectors from ORTEC, there is a small possibility of an AC power failure causing detector damage. The supposed mechanism is that following the power failure, the system starts warming toward room temperature, and during the warm up, residual gases are released by the molecular sieve. If, before the system is completely warmed up, the AC power is restored, some of the gas is gettered by the detector element, which is then the coldest object in the vacuum assembly. The condensed gases may short circuit the reverse-biased detector junction and thereby cause voltage breakdown. For this reason, many users of electro-mechanical coolers prefer the detector to warm completely to room temperature after a power failure. CryoSecure ensures that this occurs, thus avoiding possible detector failure.