Really?
Quote:
Oak Ridge National Laboratory molten salt breeder reactor
The culmination of the ORNL research during the 1970–1976 timeframe resulted in a molten salt breeder reactor (MSBR) design. Fuel was to be LiF-BeF2-ThF4-UF4 (72-16-12-0.4) with graphite moderator. The secondary coolant was to be NaF-NaBF4. Its peak operating temperature was to be 705 °C.[4] It would follow a 4-year replacement schedule*. The MSR program closed down in the early 1970s in favor of the liquid metal fast-breeder reactor (LMFBR),[5] after which research stagnated in the United States.[6][7] As of 2011, ARE and MSRE remained the only molten-salt reactors ever operated.
|
*This may be a batch-loaded rather than flow-through design.
The operating proof of concept was out-competed by fast breeder reactors, due to externalities.