Publisher's Synopsis
Excerpt from The Electrical Properties of Aluminum for Cryogenic Electromagnets
In rating normal-state cryogenic electromagnets it has become conventional to compare the total power expenditure (joule loss in the magnet conductor plus refrigerator power) with the power expenditure of a water-cooled copper electromagnet (joule loss only, neglecting the power expenditure for cooling). The following formula defines a figure of merit on this basis.
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