The object
Yves Jongen developed a compact medical cyclotron that made proton radiation therapy more affordable and practical for treatment centres. The accelerator delivers tightly focused proton beams that limit radiation beyond a tumour, reducing damage to surrounding healthy tissue compared with conventional X-ray therapy.
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What Yves did
Developed a smaller, lower-cost cyclotron system for clinical proton radiation therapy.
02
Why it matters
Jongen's compact cyclotron lowered the cost barrier to proton therapy and brought precision particle-beam treatment into wider clinical use.
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Living-status check
IBA's dated 17 June 2026 Nomination Committee record lists Jongen as a member, while its governance page names him Founder and Chief Research Officer.