You found the secret of the ghost, and that I have a Geiger counter.
A civil defense official brought up a Geiger counter, but no matter how he shook it and rapped on it, it refused to click.
Lehman, get a Geiger counter and come with me, we've got to fix this thing.
Nothing goes in or out of the Shed without passing close to a Geiger counter.
I steadied myself and concentrated on thinking whether I should attach any special significance to her carrying a Geiger counter.
Then he went to a cabinet and pulled out a Geiger counter, carried it over to the wastebasket.
But who would go to the trouble of carrying a Geiger counter for such devious purposes?
1924, for German physicist Hans Geiger (1882-1945), who invented it with W. Müller. The surname is literally "fiddler."
Geiger counter Gei·ger counter (gī'gər)
An instrument that measures the intensity of radiation by detecting radioactive particles as they cross a metal or glass tube filled with gas, causing ionization of the gas molecules and producing an electrical discharge. Also called Geiger-Müller counter.
|Geiger counter |
An electronic instrument that detects and measures nuclear radiation, such as x-rays or gamma rays. The Geiger counter consists of a gas-filled tube with a charged electrode connected to a counter. As radiation passes through the gas it ionizes atoms along its path. The ions are attracted to the charged electrode, creating pulses of electric current that are registered by the counter.