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Coolidge tube

Pronunciation: ku'lij

Definition: 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.

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© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review date: Sep 19, 2016.

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