Interactive: How Proton Therapy Works

A step-by-step illustration of the burgeoning technology for cancer treatment.

.edgeLoad-EDGE-3119534 { visibility:hidden; } HOW IT WORKS PROTON THERAPY starts with accelerators housed in concrete bunkers several stories tall and large enough to hold a cyclotron. Giant magnets speed subatomic particles toward the speed of light. Atom Smashers for Tumors 1. The proton beam begins inside a cyclotron, where enormously powerful magnets strip protons from the hydrogen atoms in water molecul...

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