GEIGER COUNTER

an instrument used for detecting and measuring radioactivity; named after German physicist Hans Geiger (1882–1945). —PDC Volume 5 Approved Glossary

an instrument used for detecting and measuring radioactivity; named after German physicist Hans Geiger (1882–1945).an instrument used for detecting and measuring radioactivity; named after H. Geiger (1882–1945), German physicist.an instrument used for detecting and measuring radioactivity; named after H. Geiger (1882–1945), German physicist.a device which is used to measure radioactivity.