MAPLE 2
MAPLE 2, a research reactor (tank) in Chalk River, ON, Canada, with 10 MW of thermal power, operated by MDS Nordion International, Inc.. Shut down, first critical in 2003.
It was one of the 18 research reactors Canada has had; 4 remain in operation today. It went critical 58 years after the first research reactor in Canada, ZEEP (1945). 36 tank-type reactors remain in operation today across 23 countries.
- Country
- Canada
- City
- Chalk River, ON
- Type
- Tank
- Thermal power
- 10 MW
- Operator
- MDS Nordion International, Inc.
- Status
- Shut down
- First criticality
- 2003
See also: every research reactor in Canada · How research reactors work
Data: IAEA RRDB · updated on Sep 3, 2026