Specialists of ASTROHN Technology Ltd taking part in the “MODERN DEVICES FOR PHYSICAL STUDIES” exhibitionadmin
On December 4, 2019, the third “MODERN DEVICES FOR PHYSICAL STUDIES” seminar exhibition was held at the Scientific and Technological Center for Unique Instrument Engineering of the Russian Academy of Sciences (STC UIE RAS). The Scientific and Technological Center UIE RA, established in 1957, was the first facility of scientific instrument engineering of the USSR Academy of Sciences. Over the years, STC has developed about 200 types of scientific instruments and information systems, produced and implemented more than 3,000 instruments based on various modern techniques: acousto-optic UV, visible, and IR spectroscopy, IR Fourier spectroscopy, etc. STC UIE RAS has highly qualified scientific personnel, Ph.D. and candidates in physics and mathematics. Therefore, the seminar exhibition visited by our employees – A.V. Samvelov, S.G. Iasev, A.V. Naumov, K.E. Anoshin, and N.A. Smirnova – proved to be interesting and representative.
A.V. Samvelov and S.G. Iasev made a poster report – “Stirling Micro-Refrigerators – Status and Prospects”. ASTROHN Technology Ltd, as we previously reported, developed a two-stage Stirling microcryogenic system (MCS) for matrix photoreceiver (MPR) cryostatting with the 1st rare-earth regenerator cooling stage and the 2nd magnetocaloric cooling stage.
The MCS expander has a built-in active regenerative heat exchanger. The MCS provides an extended range of cryostatting temperatures and has an increased efficiency near a cooling temperature of 80K.
All seminar participants were well aware that until recently Russia had not produced high-quality MCS, while abroad large-scale production of the MCS for cryostatting of various photoreceivers was underway, the resource of existing cryo-coolers was systematically increased, and the production and development of fundamentally new cooling systems was developed and mastered with more high efficiency, reduced overall dimensions, etc… Seminar participants highly praised the fact that the design of ASTROHN Technology Ltd microcryogenic systems used methods and technological solutions to improve efficiency, weight and size, energy and resource indicators of 500 mW and 750 mW and 250 mW integral microcryogenic systems, operating in a closed Stirling cycle with internal heat recovery, using highly pure gaseous helium as the operating fluid.
The report received genuine interest. The attendees were able to make sure that ASTROHN Technology Ltd developed and launched MCS able to compete with the best foreign cooling systems of the same class.