Listen to the story
Drawing of redesigned Geiger counter
Creator: Erwin Schrödinger (Austria, 1887-1961)
Medium: Parchment paper
Dimensions: 8 x 10 inches
The Geiger–Müller counter, also called a Geiger counter, is an instrument used for measuring ionizing radiation. It detects radiation such as alpha particles, beta particles and gamma rays using the ionization produced in a Geiger–Müller tube, which gives its name to the instrument. In wide and prominent use as a hand-held radiation survey instrument, it is perhaps one of the world's best-known radiation instruments. In order to get higher accuracy, Schrodinger redesigned Geiger counter for his cat experiment.