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Geiger counter
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Geiger counter
Geiger counter

Geiger counter

radiation detector
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Also known as: Geiger-Müller counter
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Last Updated: • Article History
Also called:
Geiger-Müller Counter
Key People:
Hans Geiger
On the Web:
Magnetic Academy - Geiger Counter – 1908 (Apr. 03, 2025)

Geiger counter, type of ionization chamber (q.v.) especially effective for counting individual particles of radiation.

This article was most recently revised and updated by Amy Tikkanen.