... better than 1 MHz; · Cryogenic module is designed as a 50 mm diameter insert that fits into a transport liquid helium vessel or a special refrigerator; · Dedicated PC-based acquisition system is available for computer control of the spectrometer operation ...
... Temperature fluctuations of the current of superconducting THz mixer and temperature instability of a cold head of closed cycle pulse tube helium refrigerator have been investigated. ...
... can be operated at intermediate temperatures without expensive liquid helium cooling or extremely sophisticated cryocoolers ... The modern devices are based on low-temperature (niobium) SQUIDs and demand liquid helium cooling. ...
... Available: www.cbc.ca/news/canada/windsor/ story/2012/06/18/wdr- helium- shortage.html [2] C. Witchalls, "Nobel prizewinner: We are running out of helium," New Scientist, Aug. ...
... temperatures, CEB mixers operate in the region of conventional helium temperatures ... As the phonon temperature grows to a helium level, the interaction increases and its ...
... the splitting, the three beams enter a custom designed liquid helium cooled cryostat ... Report FR3-3 Telescope primary Liquid helium cryostat 4.2 K Secondary Tertiary ...
... amplifier; (12) and (13) receiver output and coaxial cable for sample; (14) and (15) dc connectors for bias of receiving head and sample; (16) and (17) safety valve and vacuum pump connector; (18) dewar with liquid helium. vessel for liquid helium ...
... Measurements Qualification of HTS SQUID amplifier with band-pass filter was performed in specially equipped helium cryostat. ... 5. Inside of the helium cryostat with SQUID and filter installed. junction of 1.5 lm width was used. ...
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Ссылки http://www.cplire.ru/html/lab234/Tarasov/reprints/PhysicaC2002p171.pdf -- 174.4 Кб -- 12.03.2005 Похожие документы