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Joseph William Kennedy (May 30, 1916 – May 5, 1957) was an American chemist who co-discovered plutonium, along with Glenn T. Seaborg, Edwin McMillan, and Arthur Wahl. During World War II , he led the CM (Chemistry and Metallurgy) Division at the Manhattan Project 's Los Alamos Laboratory , where he oversaw research onto the chemistry and ...
Plutonium is a chemical element; ... Enrico Fermi and a team of scientists at the University of Rome reported that they had discovered element 94 in 1934. [68]
[5] He also discovered more than 100 isotopes of transuranium elements and is credited with important contributions to the chemistry of plutonium, originally as part of the Manhattan Project where he developed the extraction process used to isolate the plutonium fuel for the implosion-type atomic bomb.
Plutonium-238 was the first isotope of plutonium to be discovered. It was synthesized by Glenn Seaborg and associates in December 1940 by bombarding uranium-238 with deuterons, creating neptunium-238. 238 92 U + 2 1 H → 238 93 Np + 2 n. The neptunium isotope then undergoes β − decay to plutonium-238, with a half-life of 2.12 days: [6] 238 ...
When Los Alamos received the first sample of plutonium from the X-10 Graphite Reactor in April 1944, a problem was discovered: reactor-bred plutonium had a higher concentration of plutonium-240 (five times that of "cyclotron" plutonium), making it unsuitable for use in a gun-type weapon.
Letters to the editor on the history of plutonium, Project 2025, ageism on the Benton Commission, Trump, syphilis, drug laws and Hanford. | Opinion
Civilian nuclear power was misdirection away from the real agenda of building nuclear power plants, which was to help supply the nuclear weapons complex, producing enriched plutonium as feedstocks ...
Plutonium was tracked into civilian areas, plutonium dust was being inhaled by workers, and accidental ingestion was a grave concern for those who routinely handled it. In August 1944, a chemist named Donald Mastick was sprayed in the face with liquid plutonium chloride, causing him to accidentally swallow some. [2] [6]