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Ontario's reactor boost

Ontario boosts cancer treatments with reactor funding

Hamilton’s McMaster Nuclear Reactor will now produce 84,000 cancer treatments yearly after Ontario invested $26.9 million.
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Metal pipes and beams in an industrial interior with blue walls and a bright light source.
Foto: ans.org
The essentials
  • Ontario invested $26.9 million to expand the McMaster Nuclear Reactor’s operations.
  • The reactor produces 60% of the world’s iodine-125, used in prostate cancer treatments.
  • The funding aims to double medical isotope production by 2030.

A reactor in Hamilton fuels global cancer care

In the city of Hamilton, Ontario, the McMaster Nuclear Reactor is running at full tilt, a few decades older than the students who pass by its security gates. The reactor, humming for over 60 years, has just received a boost of C$26.9 million from the provincial government. This will triple its research output and churn out more than 84,000 cancer treatments each year. The cash injection includes $18 million already spent on reactor upgrades.

Iodine-125 is the product of choice. Sixty percent of the world's supply comes from this one reactor. It is in use for prostate and other cancers, and hundreds of doses are made every week. The reactor also supports thousands of experiments for industry and environmental research.

A government goal to double isotope production

Stephen Lecce, Ontario’s energy and mines minister, called it an expansion of hope. Two in five Canadians will face cancer in their lifetime, he said, and doubling medical isotope production by 2030 is now the province’s goal. The reactor already operates at 5 megawatts and uses low-enriched uranium fuel, cooled by ordinary water.

Nolan Quinn, the province’s minister of colleges and security, said the investment locks in access to “homegrown” treatments and keeps Ontario in the top tier of nuclear medicine research. The reactor’s upgraded role is meant to be both cutting-edge and practical.

“With two in five Canadians expected to be diagnosed with cancer in their lifetime, increasing the capacity of the McMaster Nuclear Reactor means increasing hope for patients.”
Based on reporting by Nuclear (EN), compiled by the Tradingbird newsroom. Published 06 Aug 2026, 13:08.
Topics: Nuclear

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