Speaker
Description
He–3/He-4 Dilution Refrigerator is the only device at the moment that allows to obtain an ultra-low temperature (down to 5mK) in a continuous mode (for several months and more). In 1966, one of the world's first He–3/He-4 dilution refrigerators was created in Dubna under the leadership of B.S. Neganov. Since then, more than 10 He–3/He-4 dilution refrigerators for experiments with polarized targets have been created in the Low Temperature Department of the DLNP JINR.
At present, He–3/He-4 dilution refrigerators are widely used in various fields of physics and technology: in elementary particle physics - for cooling a target material; in quantum computers - for cooling qubits; in condensed matter physics - to study the properties of matter at ultralow temperatures; in aerospace industry - for cooling detectors of telescopes; etc.
The report will present the operating principle of the He–3/He-4 dilution refrigerator, a description of the design of cryostats created at JINR, as well as a brief description of the experiments where they were installed.
