fluoroscope

The fluoroscope is the name given to a light-tight box closed at one end by a cardboard covered with these crystals (Fig. 421).

At the end of an hour Greg went back to the main laboratory, brought back a portable fluoroscope.

A device, invented by Edison and called the “fluoroscope,” was constructed on substantially the same principle.

Fig. 220-A shows a fluoroscope that contains a screen covered with proper chemicals.

I could see the bones of my fingers as I held them up between the X-ray tube and the fluoroscope.