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What is a Geiger counter? - It's a Question of Physics - The Atomic Age - Linda Hall Library - Kansas City, MO
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Example of a Geiger counter is an instrument used for measuring ionizing radiation. Dated 21st Century Stock Photo - Alamy
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GCA-03W Geiger Counter Nuclear Radiation Detection Monitor with Digital Meter and External Wand Probe - NRC Certification Ready- 0.001 mR/hr Resolution - 350 mR/hr Range: Science Lab Supplies: Amazon.com: Industrial & Scientific
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