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searching for Plutonium-239 42 found (220 total)

Major actinide (70 words) [view diff] no match in snippet view article find links to article

term used in the nuclear power industry that refers to the isotopes of plutonium (239 Pu) uranium (235 U, 238 U) and thorium (232 Th) present in nuclear fuel

Power Reactor and Nuclear Fuel Development Corporation (740 words) [view diff] exact match in snippet view article find links to article

limit for water-soluble forms of plutonium-239 should be 830 kBq while the limit for water-insoluble forms of plutonium-239 should be 5000 kBq (5 MBq). The

Special nuclear material (997 words) [view diff] exact match in snippet view article find links to article

uranium-235 is typically found mixed with other isotopes such as Uranium-238 Plutonium-239 is made in a nuclear reactor by irradiating Uranium-238 with neutrons

Edwin R. Russell (272 words) [view diff] exact match in snippet view article find links to article

the Manhattan Project, researching the isolation and extraction of plutonium-239 from uranium at Chicago's Met Lab. Edwin Roberts Russell was born June

Radioactive contamination from the Rocky Flats Plant (9,882 words) [view diff] exact match in snippet view article find links to article

concentrations five times higher than the remediation standard were found. Plutonium-239 and 240 emit ionizing radiation in the form of alpha particles. Inhalation

Commonly used gamma-emitting isotopes (795 words) [view diff] exact match in snippet view article find links to article

through multiple neutron captures and subsequent beta decays with the plutonium-239 itself being produced mostly from neutron capture and subsequent beta

Antimatter-catalyzed nuclear pulse propulsion (1,495 words) [view diff] exact match in snippet view article find links to article

tritium). There is a minimal size for the primary (about 10 kilograms for plutonium-239) to achieve critical mass. More powerful devices scale up in size primarily

Uranium(III) hydride (1,763 words) [view diff] exact match in snippet view article

appearing as a peak at mass 239, creating false increase of signal for plutonium-239. Uranium hydride slugs were used in the "tickling the dragon's tail"

Berkelium (7,452 words) [view diff] exact match in snippet view article find links to article

->[\beta^-][2.3565 \ {\ce {d}}] ^{239}_{94}Pu}}} (the times are half-lives) Plutonium-239 is further irradiated by a source that has a high neutron flux, several

Fuel (3,503 words) [view diff] exact match in snippet view article find links to article

weapon. The most common fissile nuclear fuels are uranium-235 (235U) and plutonium-239 (239Pu). The actions of mining, refining, purifying, using, and ultimately

RAF Greenham Common (2,352 words) [view diff] no match in snippet view article find links to article

International. Retrieved 27 July 2022. The Distribution of Uranium 235 and Plutonium 239 around the United States Air Force base at Greenham Common, July 1961

Nicholas Kemmer (810 words) [view diff] exact match in snippet view article find links to article

fuelled with uranium would in theory produce substantial amounts of plutonium-239 as a by-product, Kemmer (who was lodging at the Bretschers') proposed

Plutonium affair (787 words) [view diff] exact match in snippet view article find links to article

Moscow on board of a Boeing 737 on 10 August 1994, had 363.4 grams of plutonium-239 in his luggage. The plutonium, however, was only 87% pure, and was thus

Ebb Cade (910 words) [view diff] exact match in snippet view article find links to article

38(6): 1031-1060. Langham, W. H. (1959). Physiology and toxicology of plutonium-239 and its industrial medical control. Health physics. 2(2): 172-185. Langham

Klaus Fuchs (7,353 words) [view diff] exact match in snippet view article find links to article

process for enriching uranium that he worked on. The critical masses for plutonium-239 and uranium-235, which had taken the United States considerable time

Waste Isolation Pilot Plant (6,153 words) [view diff] exact match in snippet view article find links to article

64 becquerels (Bq) per cubic meter of air of americium-241 and 0.014 Bq of plutonium-239 and plutonium-240 per cubic meter of air (equivalent to 0.64 and 0.014

Seth Neddermeyer (1,652 words) [view diff] exact match in snippet view article find links to article

aircraft, and plutonium-240 was even more difficult to separate from plutonium-239 than the isotopes of uranium that were giving the rest of the Manhattan

Eric Voice (1,177 words) [view diff] exact match in snippet view article find links to article

further. Several times a year, he would travel to Harwell and inhale plutonium-239 and -244 straight into his lungs. This was to provide information on

Modesto Montoya (1,028 words) [view diff] no match in snippet view article find links to article

by Hervé Nifenecker in cold fission of uranium 233, uranium 235 and plutonium 239. He also studied the mass and kinetic energy distribution of fragments

Norman Feather (1,311 words) [view diff] exact match in snippet view article find links to article

fueled with uranium would, in theory, produce substantial amounts of plutonium-239 as a by-product, since U-238 absorbs slow neutrons to form the new isotope

Pondcrete (972 words) [view diff] exact match in snippet view article find links to article

scale environmental contamination of the area. The blocks containing plutonium-239, radioactive waste with a half-life of 24,100 years, had failed in a

Operation Crossroads (13,421 words) [view diff] exact match in snippet view article find links to article

If all the neutrons released by the fission of 2 pounds (0.91 kg) of plutonium-239 were captured by sodium-23, 0.4 pounds (0.18 kg) of sodium-24 would

Norwegian heavy water sabotage (4,441 words) [view diff] exact match in snippet view article find links to article

unsuccessful, the approach chosen has been demonstrated as technically viable. Plutonium-239 (239Pu) makes effective weapons material, although requiring an implosion-type

Nuclear weapon design (16,127 words) [view diff] exact match in snippet view article find links to article

last digit of its mass number, which is 235); and 239Pu, also known as plutonium-239, or "49" (from "94" and "239"). Uranium's most common isotope, 238U

Hanford Site (15,407 words) [view diff] no match in snippet view article find links to article

the AEC imposed an administrative limit of 4,000 MW on them. Since plutonium‑239 has a half-life of 24,100 years, AEC chairman Gordon Dean calculated

Hubbert peak theory (6,148 words) [view diff] no match in snippet view article find links to article

bridging technology ... You can use the rest of the uranium to breed plutonium 239 then we'd have at least 100 times as much fuel to use. But that means

Americium (9,240 words) [view diff] exact match in snippet view article find links to article

was isolated from its oxides in a complex, multi-step process. First plutonium-239 nitrate (239PuNO3) solution was coated on a platinum foil of about 0

Weapon of mass destruction (9,704 words) [view diff] exact match in snippet view article find links to article

detonating chemical explosives around a pit of either uranium-235 or plutonium-239 metal. The force from this detonation is directed inwards, causing the

Sustainability measurement (5,794 words) [view diff] no match in snippet view article find links to article

bridging technology ... You can use the rest of the uranium to breed plutonium 239 then we'd have at least 100 times as much fuel to use. But that means

Soviet atomic bomb project (7,628 words) [view diff] exact match in snippet view article find links to article

the translators noted that a sentence on the effect of "poisoning" of Plutonium-239 in the first (lithograph) edition had been deleted from the next (Princeton)

Paul Scherrer Institute (5,849 words) [view diff] exact match in snippet view article find links to article

planned at the time. The Federal Council denied this, maintaining the plutonium-239 content of the material was below 92 percent, which meant it was not

Fukushima Daiichi nuclear disaster (Unit 3 Reactor) (5,002 words) [view diff] exact match in snippet view article

will not behave differently from UOX fuel. The key difference between plutonium-239 and uranium-235 is that plutonium emits fewer delayed neutrons than

Chernobyl disaster (29,490 words) [view diff] exact match in snippet view article find links to article

Strontium-90), to multiples of 20,000 years, referring to the half-life of Plutonium-239 which contaminates the central portion of the Zone. In the years following

Manuel Valadares (1,729 words) [view diff] no match in snippet view article find links to article

Paris, 229 (1949), 1009 Structure fine du spectre magnétique alpha du plutonium 239 (with S. Rosenblum and B. Goldschmidt), C. R. Acad. Sc. Paris, 230 (1950)

Timeline of historic inventions (23,072 words) [view diff] no match in snippet view article find links to article

Nuclear Weapons, Arms Control Association, accessed 9 January 2020 Plutonium 239 Archived 18 January 2020 at the Wayback Machine, EDP-Sciences (EDITIONS

1945 in aviation (17,326 words) [view diff] exact match in snippet view article find links to article

on Yawata, Japan. August 9 The B-29 Superfortress Bockscar drops the plutonium-239 atomic bomb Fat Man on Nagasaki, Japan. Carrier aircraft of Task Force

British nuclear tests at Maralinga (15,678 words) [view diff] exact match in snippet view article find links to article

far away as Madagascar, where elevated levels of plutonium-240 and plutonium-239 have been found in marshlands and are believed to originate from both

List of nuclides (3,038 words) [view diff] exact match in snippet view article find links to article

nuclide. FP Nuclear fission product (only those from uranium-235 or plutonium-239) (only those with a half-life over one day are shown); IM Industry or

List of ISO standards 18000–19999 (7,947 words) [view diff] no match in snippet view article find links to article

18589-4:2009 Part 4: Measurement of plutonium isotopes (plutonium 238 and plutonium 239 + 240) by alpha spectrometry ISO 18589-5:2009 Part 5: Measurement of

Timeline of nuclear weapons development (11,779 words) [view diff] exact match in snippet view article find links to article

on Hiroshima, Japan. 1945 – August 9 – "Fat Man", an implosion-type plutonium-239 weapon, is dropped on Nagasaki, Japan. 1945 – August – The Smyth Report

Swedish nuclear weapons program (10,716 words) [view diff] exact match in snippet view article find links to article

was to run heavy water reactors where uranium would be turned into plutonium-239 (Pu-239). The basic materials needed in large amounts included, uranium

List of Golgo 13 chapters (3,363 words) [view diff] no match in snippet view article find links to article

92. "The Man With The Curve" (曲線の男, "Kyokusen no otoko") 88. "Hydra" (ヒドラ, "Hidora") 89. "Plutonium 239" (プルトニウム239, "Purutoniumu 239")