See Also: Geiger-Muller tube(medicine)
Geiger-Muller counter(medicine)
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Geiger counter(dictionary)
Geiger, Abraham(encyclopedia)
Geiger, Hans(medicine)
Geiger counter(encyclopedia)
Geiger (as used in expressions)(encyclopedia)
geiger tree(dictionary)

Geiger-Muller tube (medicine)


Geiger-Muller tube -->
Geiger-Muller counter
<instrument> An instrument for measuring radioactivity by counting the emission of radioactive particles.

It consists of a metallic cylinder, negatively charged, in a tube containing a fine, positively charged wire at its centre; radiations produce ionization of the gas molecules between the cylinder and the wire and result in an electrical discharge independent of the energy of the impinging particle or ray.