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Dr Ernest Walton with Cockcroft-Walton apparatus
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Dr Ernest Walton with Cockcroft-Walton apparatus
Dr Ernest Ts Walton in the cabinet (marked E) into which the high-velocity protons emerge and strike the target of lithium, producing on a fluorescent screen bright scintillations which indicate that helum particles are being driven out of the lithium nucleus - the lithium nucleus appearing to break up into two helium nuclei. Physicists Walton and J D Cockcroft developed the Cockcroft-Walton accelerator in the Cavendish Laboratory at Cambridge University to artificially accelerate atomic particles to high energies. They observed the resultant splitting of atoms when protons from hydrogen were fired at high speeds at a lithium target
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1932 Apparatus Atom Atomic Cabinet Cavendish Development Ernest Physicist Physicists Physics Research Scientific Splitting Walton Accelerator Atoms
EDITORS COMMENTS
In this historic photograph, Dr. Ernest Walton (marked E) is seen inside the Cockcroft-Walton apparatus at the Cavendish Laboratory in Cambridge University. The apparatus, a groundbreaking invention developed by Walton and his colleague John Douglas Cockcroft, was used to artificially accelerate atomic particles to high energies. The cabinet in the foreground is where the high-velocity protons emerge and strike the lithium target. The bright scintillations on the fluorescent screen indicate that helium particles are being driven out of the lithium nucleus, a clear sign that the lithium nucleus is breaking up into two helium nuclei. This phenomenon, known as nuclear fusion, was a major discovery in the field of atomic physics. The Cockcroft-Walton accelerator, developed in the early 1930s, was a significant advancement in nuclear research. It allowed scientists to study the behavior of atomic nuclei under high-energy conditions and paved the way for further research into nuclear physics. Walton and Cockcroft's work was recognized with the Nobel Prize in Physics in 1951. This photograph captures a pivotal moment in the history of science, as two brilliant physicists pushed the boundaries of human knowledge and made a major contribution to our understanding of the atomic world. The Cockcroft-Walton apparatus remains an enduring symbol of scientific innovation and discovery.
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