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Why in a linear accelerator is used an AC voltage?

Wouldn't it work with a constant electric field?

enter image description here


(Image Source: <https://commons.wikimedia.org/wiki/File:Linear_accelerator_animation_16frames_1.6sec.gif> - Author: Chetvorno, CC0, via Wikimedia Commons)

XaC
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Salmon
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1 Answers1

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DC fields where used in early accelerators, such as Van de Graaff generators and pelletrons.

The LHC accelerates protons to 7 TeV. How are you going to create and maintain a 7,000,000,000 volt DC field?

JEB
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