News Release Article from  Canadian Nuclear Safety Commission

Archived - CNSC renews McMaster University’s nuclear reactor licence

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June 27, 2014 - Ottawa

Following a public hearing, the Canadian Nuclear Safety Commission (CNSC) announced today its decision to renew McMaster University’s non-power reactor operating licence for the McMaster Nuclear Reactor (MNR). The licence will be valid from July 1, 2014, until June 30, 2024.

In making its decision, the Commission considered information presented at a May 8, 2014, public hearing in Ottawa, Ontario. During the public hearing, the Commission received and considered submissions from McMaster University and three intervenors, as well as CNSC staff’s recommendations.

CNSC staff will present the Commission with annual reports on the performance of the MNR, as part of the annual safety performance reports on nuclear research facilities in Canada. In addition, the Commission accepted the revised financial guarantee in order to ensure that adequate resources are available for a safe and secure future decommissioning of the MNR site.

The Record of Proceedings and Decision is available upon request, by contacting the Commission Secretariat. It will be available, in both official languages, on the CNSC website at a later date. The transcripts of the hearing are available on the CNSC website at, or by contacting the CNSC. The webcast of the hearing is also archived on the same site for a period of 90 days.

The CNSC regulates the use of nuclear energy and materials to protect the health, safety and security of Canadians and the environment; to implement Canada’s international commitments on the peaceful use of nuclear energy; and to disseminate objective scientific, technical and regulatory information to the public.

Quick facts

  • The MNR began operating in 1959 as the first university-based research reactor in the British Commonwealth.
  • The MNR is a pool-type reactor, with a core of enriched uranium fuel, moderated and cooled by light water.
  • The facility supports research and activities in nuclear physics, biology, chemistry, earth sciences, medicine, neutron radiography and nuclear medicine.
  • Typical applications of neutron radiography at MNR include the testing of turbine blades for aircraft engines and corrosion of aircraft components.

Research Reactors

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Aurèle Gervais
Media and Community Relations
Canadian Nuclear Safety Commission

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