Joseph Alexander Gray General Physics, Subatomic Particles, Optics, Biophysics, Theoretical Physics

Early pioneer of nuclear physics

The Story

After graduating from Melbourne University in 1907, Gray worked in Ernest Rutherford’s lab in Manchester, England, studying the interaction of electrons and X-rays with atoms. In 1912 he went to McGill University in Montreal, and after World War I returned there. From 1924 until retiring he was research professor at Queen’s. His discoveries regarding the breadth of the energy spectrum of electrons and the scattering of X-rays were important contributions to the development of the new theory of the atom. His work foreshadowed the Compton effect (for which A.H. Compton received the Nobel Prize). Gray received the first Gold Medal of the Canadian Association of Physicists in 1956.

Sources: The Canadian Encyclopedia 1988


The Person

February 7, 1884
Melbourne, Australia
Date of Death
March 5, 1966
Place of Death
London, England
Physicist; Research professor
Queen’s University
Last Updated
September 25, 2012

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