Cockcroft-Walton generator

voltage multiplier

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June 24, 2026

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The Cockcroft-Walton generator is a type of voltage multiplier that uses a cascade of rectifiers and capacitors to significantly increase a voltage. Developed by John Cockcroft and Ernest Walton, this device was crucial for early nuclear physics research. Their pioneering work in 1932 used a four-stage generator to accelerate protons, achieving the first artificial nuclear reaction by disintegrating lithium atoms. This innovation proved invaluable for laboratories studying atomic nuclei and earned Cockcroft and Walton the Nobel Prize in Physics in 1951. The principle of the Cockcroft-Walton generator can be extended to create even higher voltages, with modern accelerators utilizing similar circuitry.12

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Sir John Douglas Cockcroft
…he and Walton designed the Cockcroft-Walton generator and used it to disintegrate lithium atoms by bombarding them with protons. This type of accelerator proved to be one of the most useful in the world’s laboratories. They conducted further research on the splitting of other atoms and established the importance of…
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…he and Walton designed the Cockcroft-Walton generator and used it to disintegrate lithium atoms by bombarding them with protons. This type of accelerator proved to be one of the most useful in the world’s laboratories. They conducted further research on the splitting of other atoms and established the importance of…
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particle accelerator
Voltage multipliers (cascade generators)
…of the high voltage for Cockcroft and Walton’s pioneering experiments was a four-stage voltage multiplier assembled from four large rectifiers and high-voltage capacitors. Their circuit in effect combined four rectifier-type direct-voltage power supplies in series. The alternating voltage supplied by a high-voltage transformer was transmitted to the
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…of the high voltage for Cockcroft and Walton’s pioneering experiments was a four-stage voltage multiplier assembled from four large rectifiers and high-voltage capacitors. Their circuit in effect combined four rectifier-type direct-voltage power supplies in series. The alternating voltage supplied by a high-voltage transformer was transmitted to the
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Ernest Thomas Sinton Walton
…particle accelerator, known as the Cockcroft-Walton generator.
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…particle accelerator, known as the Cockcroft-Walton generator.
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