fluorescent screen

There was a Santa Claus, and a coat rack filled with red Santa costumes next to a fluorescent screen illuminating the set.

While studying the movement of electrons in something called a Crookes tube, he’d noticed that whenever he turned on the electric device, a strange, faint glow would appear on a fluorescent screen on the other side of the room.

Just before Christmas that year, he replaced the fluorescent screen with photographic paper and took the world’s first X-ray, a clear image of the bones and wedding ring on his wife’s left hand.

In his darkened lab, he covered the tube with black cardboard to hide its glow, but noticed a glimmer of light on a fluorescent screen across the room.

A special room should also be furnished with an X-ray outfit, and arrangements should be made whereby this room can be readily darkened so that suspected fractures, &c. may be examined with the fluorescent screen.