The location[]
An experimental civil reactor near the then large and still mostly industrial town of Detroit, Michigan. The city is on the American border with Canada.
The 1966 incident[]
The core of an experimental reactor near Detroit, Michigan, had partially melted down when a sodium cooling system failed on October 5th, 1966. The core of an experimental reactor melted partially when a zirconium plate at the bottom of a reactor vessel came loose during a test, cause it malfunction, after which a sodium cooling system failed and so 2 fuel sub-assemblies to begin to meltdown. When the plant's radiation monitors sounded, the operators shut down the reactor manually.
It dose not officially have a INES rateing, but probably was a Level 4 INES Scale event.
Also see[]
- Atomic accidents and disasters
- Leningrad Nuclear Power Plant accidents
- Corporate malfeasance at the Peach Bottom Nuclear Generating Station
- UK OTL atomic reactors in 1962
- Geiger-Muller counter