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A cryogenic test insert with a high vacuum sample space

A cryogenic test insert with a high vacuum sample space

Publication date: 15 January 1993

Authors: Engelhardt, R., et al.

Journal: Review of Scientific Instruments
Volume: 64
Issue: 1
Page: 197-199
Year: 1993

Copyright: American Institute of Physics

An insert based on a top-loading, fully welded stainless-steel design, with a special steel-copper weld is described. It has been developed explicitly for pumped helium cryostats, down to a temperature of about 1.2 K. The principal characteristics of this insert are a large high vacuum sample space, the absence of any cold seal, and the reliability and flexibility of use. Typical applications are optical/UV/x-ray photon counting experiments based on cryogenic detectors and the development of advanced heterodyne receivers using Superconductor-Insulator-Superconductor junctions as mixers in the millimeter and submillimeter regimes.

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