Coolidge tube

Coo·lidge tube

(kū'lij), an x-ray tube, in which the cathode consists of a tungsten wire spiral surrounded by a focusing cup; the tungsten spiral is heated by an electric current; the quantity and quality of the x-rays so generated are regulated by varying the temperature of the cathode and the voltage between cathode and anode.

Coolidge tube

(koo′lĭj) [William D. Coolidge, U.S. physicist and chemist, 1873–1975] A kind of hot-cathode tube that is so highly exhausted that the residual gas plays no part in the production of the cathode stream, and that is regulated by variable heating of the cathode filament.

Coolidge,

William D., U.S. physicist, 1873-1974. Coolidge tube - a kind of x-ray tube.

单词	coolidge tube
释义	DictionarySeetube Coolidge tube Coolidge tube [′kül·ij ‚tüb] (electromagnetism) An x-ray tube in which the needed electrons are produced by a hot cathode. Coolidge tube Coo·lidge tube (kū'lij), an x-ray tube, in which the cathode consists of a tungsten wire spiral surrounded by a focusing cup; the tungsten spiral is heated by an electric current; the quantity and quality of the x-rays so generated are regulated by varying the temperature of the cathode and the voltage between cathode and anode. Coolidge tube (koo′lĭj) [William D. Coolidge, U.S. physicist and chemist, 1873–1975] A kind of hot-cathode tube that is so highly exhausted that the residual gas plays no part in the production of the cathode stream, and that is regulated by variable heating of the cathode filament. Coolidge, William D., U.S. physicist, 1873-1974. Coolidge tube - a kind of x-ray tube.
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