Fluoroscope

(noun.) an X-ray machine that combines an X-ray source and a fluorescent screen to enable direct observation.

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• A device, invented by Edison and called the fluoroscope, was constructed on substantially the same principle. Edward W. Byrn. 十九世纪发明进展.
• Edison says with regard to this work: When the X-ray came up, I made the first fluoroscope, using tungstate of calcium. 弗兰克·刘易斯·戴尔. 爱迪生的生平和发明.
• The same journal in its issue of April 1, 1896, shows an Edison fluoroscope in use by an observer, in the now familiar and universal form somewhat like a stereoscope. 弗兰克·刘易斯·戴尔. 爱迪生的生平和发明.

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