Cryostat

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1. A device consisting of a vessel, similar in construction to a vacuum flask, that is used to maintain cold cryogenic temperatures. (Ontobee, Ontology for Biomedical Investigations). 2. inside a vacuum enclosure, or cryostat, that provides thermal contact with a storage dewar of liquid nitrogen. Mechanical refrigerators are also available to cool the detector for use in remote locations where a supply of liquid nitrogen may not be available. (Britannica). 3. A cryostat is a vacuum insulated sample environment that uses liquid cryogens, such as nitrogen or helium, or a mechanical cooler to cool the temperature of a sample. Base temperatures of 77 K (nitrogen) or <4 K (helium) can be reached depending on the boiling point of the cryogen used. Accurate temperature control can be achieved by combining the cooling power of the cryogen, or cooler, with a voltage applied across an electrical heater element. (Oxford Instruments). 4. A cryostat is a machine used in neuroscience to cut frozen tissue sections for microscopic analysis. It allows tissue to be frozen quickly and then sliced into thin sections that can be mounted on microscope slides for further examination. (ScienceDirect, AI generated definition based on: Pathobiology of Human Disease, 2014)

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