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A sample of thorium. Thorium-based nuclear power generation is fueled primarily by the nuclear fission of the isotope uranium-233 produced from the fertile element thorium.A thorium fuel cycle can offer several potential advantages over a uranium fuel cycle [Note 1] —including the much greater abundance of thorium found on Earth, superior physical and nuclear fuel properties, and reduced ...
Non-radioactivity-related uses of thorium have been in decline since the 1950s [148] due to environmental concerns largely stemming from the radioactivity of thorium and its decay products. [37] [123] Most thorium applications use its dioxide (sometimes called "thoria" in the industry), rather than the metal.
Thorium Energy Alliance (TEA) is a non-governmental, non-profit 501 (c)3, educational organization based in the United States, which seeks to promote energy security of the world through the use of thorium as a fuel source. The potential for the use of thorium was studied extensively during the 1950s and 60s, [1] and now worldwide interest is ...
Thorotrast. Thorotrast is a suspension containing particles of the radioactive compound thorium dioxide, ThO 2; it was used as a radiocontrast agent in clinical radiography in the 1930s to 1950s. It is no longer used clinically. Thorium compounds produce excellent images because of thorium's high opacity to X-rays (it has a high cross section ...
Monazite powder, a rare earth and thorium phosphate mineral, is the primary source of the world's thorium. India's three-stage nuclear power programme was formulated by Homi Bhabha, the well-known physicist, in the 1950s to secure the country's long term energy independence, through the use of uranium and thorium reserves found in the monazite sands of coastal regions of South India.
A cross-section of the Aircraft Reactor Experiment. The ARE was designed to be a prototype of a 350-megawatt, BeO-moderated, circulating-fuel aircraft reactor. It used a fuel composed of 53.09 mole % NaF, 40.73 mole % ZrF 4, and 6.18 mole % UF 4. [ 1] The reactor was a BeO cylinder with bent tubes directing flowing fuel through the core in both ...
The Sodium Reactor Experiment was a pioneering nuclear power plant built by Atomics International at the Santa Susana Field Laboratory near Simi Valley, California. The reactor operated from 1957 to 1964. On July 12, 1957 the Sodium Reactor Experiment became the first nuclear reactor in California to produce electrical power for a commercial ...
The thorium fuel cycle is a nuclear fuel cycle that uses an isotope of thorium, 232. Th. , as the fertile material. In the reactor, 232. Th. is transmuted into the fissile artificial uranium isotope 233. U. which is the nuclear fuel. Unlike natural uranium, natural thorium contains only trace amounts of fissile material (such as 231.