“scotophor”的英文意思_释义_用法

单词

scotophor

释义

scotophor, n. Electronics.|ˈskəʊtəʊfɔː(r)|
[f. scoto-² + -phor after phosphor n.]
Any substance which darkens when bombarded with electrons, and which may therefore be used as a coating for the screens of cathode-ray tubes in order to provide the reverse of the imaging behaviour of phosphor coatings.
1946[see tenebrescence n.].1955Electronics Feb. 170/1 Potassium chloride (KCL) has been found to be the most suitable scotophor, or screen material, for practical dark-trace tubes.1968U.S. Pat. 3,413,505 1 This disclosure deals with a dark trace cathode-ray tube including a scotophor screen and improved means for erasing an image from the screen.1983K. Nassau Physics & Chem. Color ix. 199 Suitably doped KCl has been used as a scotophore [sic] ‘dark-bearer’, providing a slowly bleaching phosphor in a radar display-type cathode ray tube.

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