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dewar |
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dewar [dyo̅o̅′ər] a double chamber used to maintain the temperature of superconducting magnet coils near absolute zero. The outer chamber is filled with liquid nitrogen at a temperature of about -196° C (-321° F), and the inner chamber is filled with liquid helium at a temperature of -270° C (-454° F). A dewar is part of magnetic resonance imaging equipment. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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0 unit can be used with a permanent cryogenic nitrogen tank, a portable tank or dewar. And the absence of Caxton, Napster, Universal Product Code, James Dewar, China (to mention just a few proper nouns in the text I tried to look up) from the index is scandalous. Dewar had been appointed in December to replace former trustee Julie English, who resigned midterm in October, citing health and time constraints. |
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