A Geiger counter, also called a Geiger-Müller counter, is a type of particle detector that measures ionizing radiation.
Suppliers of a selection of handheld Geiger counters. Information on mineral identification using handheld radiation monitors and other applications.
Files in red–history) Index 9. Magnetic trapping 9H. Poincaré, 1896 10. Trapped Motion 10H. Einstein, 1910 10a. Particle Drift