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cryogenics
(redirected from cryogen)

    Also found in: Dictionary/thesaurus, Medical, Wikipedia, Hutchinson 0.06 sec.
cryogenics: see low-temperature physics low-temperature physics, science concerned with the production and maintenance of temperatures much below normal, down to almost absolute zero, and with various phenomena that occur only at such temperatures.
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cryogenics

Study and use of low-temperature phenomena. The cryogenic temperature range is from −238°F (−150°C) to absolute zero. At low temperatures, matter has unusual properties. Substances that are naturally gases can be liquefied at low temperatures, and metals lose electrical resistance as they get colder (see superconductivity). Cryogenics dates from 1877, when oxygen was first cooled to the point at which it became a liquid (−297°F, or −183°C); superconductivity was discovered in 1911. Applications of cryogenics include the storage and transport of liquefied gases, food preservation, cryosurgery, rocket fuels, and superconducting electromagnets.

Using materials that operate at very cold temperatures. See superconductor.
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Multipoint Brunauer-Emmett-Teller (BET) surface area analyses were done (Gemini 2375 Surface Area Analyzer, Micromeritics, Norcross, GA) with ultra high purity nitrogen as the adsorbate gas and liquid nitrogen as the cryogen.
Properties of nanostructured hydroxyapatite prepared by a spray ... by Hockey, Bernard / Journal of Research of the National Institute of Standards and Technology
Evaluation of the effectiveness of wet ice, dry ice, and cryogen packs in reducing skin temperature.
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The GentleMax Integrated Aesthetic Workstation, a single footprint device, offers the multi-configuration of the long-pulse Alexandrite, long-pulse YAG, Erbium lasers, and fluorescent pulsed light, coupled with dual skin cooling options of cryogen and air.
Candela Introduces New Products at American Academy of Dermatology ... by Business Wire
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