The McMaster Nuclear Reactor on McMaster University’s campus in Hamilton, Ontario, Canada, has been relicensed for 20 years.
Built in 1959, the reactor is one of the world’s leading suppliers of iodine-125, a medical isotope used to treat prostate and other cancers, the university said in a post.
The license renewal by the Canadian Nuclear Safety Commission will enable continued investment and expansion in the facility to support new medical isotope products, materials science programs, and education opportunities, the university said.
![A 53-year-old patient (patient number four) with a recurrent pituitary adenoma with extension of a cystic component of disease to the medial temporal lobe apparent on MRI (contoured in blue), and extension of disease to the left sphenoid bone and orbital apex apparent on [68Ga]Ga-DOTA-TATE (contoured in yellow).](https://img.auntminnie.com/mindful/smg/workspaces/default/uploads/2026/04/pituitary-tumor.QGsEnyB4bU.jpg?auto=format%2Ccompress&dpr=2&fit=crop&h=167&q=70&w=250)
