Canada ceases making medical isotopes from nuclear reactor: will use non nuclear sources
The Chalk River reactor, which began operating in 1957, is one of five major producers of molybdenum-99, which decays into the technetium-99m isotope used in 85 per cent of nuclear medicine procedures such as bone scans and other diagnostic tests.
Final shipment of weapons-grade uranium due at Ontario facility this year http://www.thestar.com/news/canada/2015/06/29/final-shipment-of-weapons-grade-uranium-due-at-ontario-facility-this-year.html By: Joanna Smith Ottawa Bureau reporter, Jun 29 2015
OTTAWA—The United States has approved what is expected to be the last shipment of weapons-grade uranium to be sent to Canada for the production of medical isotopes. The U.S. Nuclear Regulatory Commission signed an export licence June 23 to transport 8.1 kilograms of highly enriched uranium from Oak Ridge, Tenn., along a secret route to Chalk River, Ont., by the end of this year.
There, for what is expected to be the last time, the uranium will be used to produce target material for the aging National Research Universal (NRU) reactor to irradiate in order to produce medical isotopes used in nuclear medicine.
“The game is over for Canada’s unnecessary and irresponsible use of bomb-grade uranium to produce medical isotopes. Better late than never,” Alan Kuperman, coordinator of the Nuclear Proliferation Prevention Project at the University of Texas at Austin, said in a statement Monday.
THE LAST SHIPMENT Kuperman has long been tracking the controversial U.S. exports of highly enriched uranium to Canada. The Conservative government has committed to shutting down the routine production of medical isotopes at the NRU by Oct. 31, 2016, with the possibility of the NRU retaining licences to operate until March 2018 in case of unexpected shortages. The isotope has a very short lifespan, causing it to disappear within a day of being generated and so it cannot be stockpiled.
The Chalk River reactor, which began operating in 1957, is one of five major producers of molybdenum-99, which decays into the technetium-99m isotope used in 85 per cent of nuclear medicine procedures such as bone scans and other diagnostic tests.
Other sources, such as a cyclotron operated by TRIUMF, Canada’s national nuclear laboratory for particle and nuclear physics at the University of British Columbia, are in the works……
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