MSRE: Alvin Weinberg's Molten Salt Reactor Experiment – "Th" Thorium Documentary

Oak Ridge National Laboratory was the home of Alvin Weinberg’s Molten Salt Reactor Experiment. The MSRE proved that a fission reaction in molten fluoride salts could be contained in Hastelloy-N, and that a molten salt fueled reactor concept was viable.

Two prototype molten salt reactors were successfully designed, constructed and operated at ORNL. The Aircraft Reactor Experiment in 1954 and Molten-Salt Reactor Experiment 1965-1969. Both used liquid fluoride fuel salts. The MSRE demonstrated fueling with U-233 and U-235. Alvin Weinberg was removed from his post and the MSR program closed down in the early 1970s. Aircraft Reactor Experiment & Molten Salt Reactor Experiment remain the only molten salt reactors ever operated.

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References: Alvin Weinberg IEEE Global History Network Thorium Advocate Tour of ORNL. MSRE Researchers interview near ORNL. Google Tech Talk – Why didn’t Th-MSR Happen? Authors@Google – Richard Martin “Thorium: Superfuel”. Stephen Boyd on Silicon Carbide & Molten Salt Compatibility Driving Force Radio on Thorium & Flibe Energy Interview with Paul Haubenreich Hot Radiator Cap DASH CAM HD Mechanic Opens Radiator Hot Coolant Generating Energy With Sunlight, Mirrors, and Molten Salt.

“Thorium & MSRE: Alvin Weinberg’s Molten Salt Reactor Experiment” is chapter 9 of a documentary called “Th”, about the element Thorium. The entire documentary can be found at…

“Th 09” is “Th” thorium documentary Part 9, iteration v477.