The Ieti facility is a cryogenic laboratory fully equipped for measurements of different low-temperature devices. It is hosted in the deep undergronud HallC of Laboratori Nazionali del Gran Sasso (L'Aquila, IT).

Ieti enables the operation of devices in an ultra-low radioactivity environment. The 1.4 km-thick rock overburden protects the facility from cosmic rays, suppressing their flux by a factor 1 milion. The natural radio-purity of the Gran Sasso rocks, in addition, offers an unique environment for all experiments demanding low radioactive levels. For a further suppression of the laboratory radioactivity, Ieti is equipped with lead shields located both inside and around the refrigerator.

With a base temperature of 8 mK and an experimental volume of about 8000/5500 cc (without/with lead shield), the Ieti cryostat can be exploited for different physics purposes. It is currently used for the characterization of quantum bits based on superconducting circuits, the development of novel particle detectors and the optimization of new low temperature sensors.