Ernest Walton and John Cockcroft produced nuclear reactions with a controlled beam of electrically accelerated protons. Their 1932 lithium experiment detected energetic alpha particles from the target. The apparatus made both the incident proton energy and the outgoing reaction products experimentally accessible, replacing reliance on naturally emitted projectiles alone. The result demonstrated how accelerator control could be used to investigate the binding and transformation of atomic nuclei.[ref]
Experiments with High Velocity Positive Ions. II. The Disintegration of Elements by High Velocity Protons by John Douglas Cockcroft and Ernest Thomas Sinton Walton. 1932 accelerator experiment and observed disintegration products
A physicist.[ref]
https://www.dib.ie/biography/walton-ernest-thomas-sinton-a8909. Independent professional profile
[ref]https://www.tcd.ie/news_events/articles/tcd-exhibition-celebrates-nobel-laureate-dr-ernest-walton/. Independent professional profile
Portrait of Ernest Thomas Sinton Walton
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