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A positive power co-efficient means that the reactor becomes more reactive when it heats up; in the case of an unplanned power spike, such a design can "run away" and potentially cause a meltdown. [7] Consequently, significant efforts were made to resolve the outstanding issues, but progress towards commissioning the reactors was markedly slowed.
The Experimental Breeder Reactor II. Experimental Breeder Reactor-II (EBR-II) was a sodium-cooled fast reactor designed, built and operated by Argonne National Laboratory at the National Reactor Testing Station in Idaho. It was shut down in 1994. Custody of the reactor was transferred to Idaho National Laboratory after its founding in 2005.
Godiva II was constructed inside a concrete building with 20-inch-thick (51 cm) walls and 8-inch-thick (20 cm) roof in a canyon a quarter-mile (400 m) away from the control room. [ 4 ] [ 5 ] In 1959, Los Alamos agreed to make Godiva II available to DOD contractors free of charge for two days each month, acknowledging its unique facility for ...
Schematic of the Kosmos-954 on-board reactor. Kosmos 954 (Russian: Космос 954) was a reconnaissance satellite launched by the Soviet Union in 1977. A malfunction prevented safe separation of its onboard nuclear reactor; when the satellite reentered the Earth's atmosphere the following year, it scattered radioactive debris over northern Canada, some of the debris landing in the Great ...
Containment systems for nuclear power reactors are distinguished by size, shape, materials used, and suppression systems. The kind of containment used is determined by the type of reactor, generation of the reactor, and the specific plant needs. Suppression systems are critical to safety analysis and greatly affect the size of containment.
CRAC-II is both a computer code (titled Calculation of Reactor Accident Consequences) and the 1982 report of the simulation results performed by Sandia National Laboratories for the Nuclear Regulatory Commission. The report is sometimes referred to as the CRAC-II report because it is the computer program used in the calculations, but the report ...
W.R. Case & Sons Cutlery Company is an American manufacturer of traditional pocket knives, fixed blades/sporting knives, kitchen knives, limited edition commemoratives and collectibles. The company originated in Little Valley, New York , around the turn of the 20th century, before relocating to its current home, Bradford, Pennsylvania , in 1905.
A breeder reactor is a nuclear reactor that generates more fissile material than it consumes. [1] These reactors can be fueled with more-commonly available isotopes of uranium and thorium, such as uranium-238 and thorium-232, as opposed to the rare uranium-235 which is used in conventional reactors.
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