Geiger counter


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counter

 [kown´ter]
an instrument or apparatus by which numerical value is computed; in radiology, a device for enumerating ionizing events.
Coulter counter an automated instrument for performing blood counts, based on the principle that cells are poor electrical conductors compared with saline solution.
Geiger counter (Geiger-Müller counter) a radiation counter using a gas-filled tube that indicates the presence of ionizing particles. It is very sensitive to β particles but relatively insensitive to γ and x-rays.
scintillation counter a device for detecting ionization events, permitting determination of the concentration of radioisotopes in the body or other substance.

Geiger counter

(gī′gĕr)
[Hans Geiger, Ger. physicist in England, 1882–1945]
An instrument for detecting ionizing radiation.
References in periodicals archive ?
In her backyard and other areas, "The Geiger counter starts going beep, beep, beep, beep," she said.
The Geiger counter tests for radiation and the electromagnetic frequency (EMF) reader monitors different types of energy.
Using an Arduino microcomputer, Libelium, a Spanish company that makes communications hardware, designed a Geiger counter that can be built and tested by home hobbyists (or bought preassembled).
I remember folding white sheets next to a Geiger counter. Oil
hear your teeth chatter like a Geiger counter and see the lesions
As the approaching pig transmitter's signal strength increases, a "Geiger Counter" (modulating) piercing audio and visual display informs the operator of the pig's approach and passage.
Some of the things you and your kids will see at the expo include a traveling exhibition from the American Museum of Natural History that explains the evolution and subsequent extinction of the giant dinosaurs, a look at how to use a Geiger counter to check for the presence of radioactive materials at the American Nuclear Society exhibit, a discussion of living cells--what they are and how they work--at the American Society for Cell Biology display, a visit to the Ames Laboratory exhibit to see how scientists are extracting oil from algae, an interactive experience with robots playing soccer at the Bowdoin College arena, and many more.
As the transmitter's signal strength increases, a "Geiger Counter" (modulating) audio and visual display alerts the operator of the pig's approach and passage.
There's a radiation kit with a Geiger counter, shelves of haz-mat suits in black gym bags, plus a collection of white vests with job titles in big black letters.
He imagined a cat locked in a steel box with a vial of poison, a Geiger counter, and a tiny bit of some radioactive substance.
The farther he went from the plant, the higher the radiation readings chemist Chauncy Kepford got on his Geiger counter. Hot radioactive gases from the accident rose high above the plant and were carried downwind.
Alan Carr and the JLC always seem as excited as a Geiger counter in Tehran.