| Type: | Open University
Language: Danish |
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Previous course: C1064
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No credit points with: C1064
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Prerequisite: C1512/10012/C1011/C1505/10005/C1523/C1530/C1802/C2200/21061/C2201/C2903
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Recommended semester: 1th - 6th semester
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Scope and form: Lectures
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Examination: Written exam (13-scale)
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Department: Department of Physics
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Aim: The aim of the course is to impart some knowledge of 1) The basic methods for achieving, measuring and maintaining extremely low (cryogenic) temperatures. 2) Properties of materials at cryogenic temperatures. 3) Present and possible future industrial and scientific applications of cryogenic technology, with emphasis on large-scale applications of superconducting materials for the generation of large magnetic fields.
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Contents: Cooling at cryogenic temperatures (120K > T > 1K): thermodynamic processes in commercial liquifiers and cooling units. Cooling under 1K: 3He-4He mixing cryostats, adiabatic demagnetisation, Pomeranchuk cooling etc. Cryotechnical aspects: material properties (eg. superconductivity and superfluidity), Kapitza resistance, calculation of heat flow etc. Cryotechnical applications: cyrogenic cooling, cryopumping, superconducting magnets, machines and suspension, electric drive, energy production and storage.
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