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searching for Plutonium-239 40 found (198 total)

alternate case: plutonium-239

Power Reactor and Nuclear Fuel Development Corporation (726 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
Remix Fuel (519 words) [view diff] exact match in snippet view article find links to article
Plutonium generated during the fuel cycle. Approximately half of the Plutonium-239 "bred" during the fuel cycle is fissioned and another 25% is transmuted
MPC&A (894 words) [view diff] exact match in snippet view article find links to article
After the Cold War, there were large quantities of enriched uranium and plutonium-239 left in Russia. The problem was that due to the weakened economy of
Antimatter-catalyzed nuclear pulse propulsion (1,477 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 hydride (1,772 words) [view diff] exact match in snippet view article find links to 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"
Fuel (3,245 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
Enstone Airfield (641 words) [view diff] exact match in snippet view article find links to article
secrecy to deliver the American Little Boy uranium-235 and Fat Man plutonium-239 nuclear fission bombs should the special US Silverplate Boeing B-29
Nicholas Kemmer (794 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
Ebb Cade (835 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
Berkelium (7,446 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
Plutonium affair (779 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
Eric Voice (1,167 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
Norman Feather (1,268 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
Seth Neddermeyer (1,606 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
Waste Isolation Pilot Plant (5,633 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
Modesto Montoya (829 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
Modesto Montoya (829 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
Pondcrete (957 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
Nuclear chain reaction (3,746 words) [view diff] exact match in snippet view article find links to article
The second most common isotope used in nuclear fission is Pu-239 or plutonium-239. This is due to its ability to become fissile with slow neutron interaction
Radioactive contamination from the Rocky Flats Plant (9,989 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
Human Interference Task Force (1,582 words) [view diff] exact match in snippet view article find links to article
too short given the half-life of certain radioactive isotopes (e.g. Plutonium-239 at 24,000 years). The written historical tradition of humanity, in contrast
RAF Greenham Common (3,176 words) [view diff] no match in snippet view article find links to article
2017. Retrieved 6 October 2020. The Distribution of Uranium 235 and Plutonium 239 around the United States Air Force base at Greenham Common, July 1961
Operation Crossroads (13,221 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 (4,842 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
Sustainability measurement (5,100 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 (6,916 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)
Americium (8,989 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
Hubbert peak theory (5,761 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
Nuclear detonation detection system (1,966 words) [view diff] no match in snippet view article find links to article
Americium-241, Iodine-131, caesium-137, krypton-85, strontium-90, plutonium - 239, tritium, and xenon. Sending planes over or near an area could reveal
Paul Scherrer Institute (5,808 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
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)
Nuclear weapon design (15,848 words) [view diff] exact match in snippet view article find links to article
is 50 kg (110 lb) for uranium-235 and 16 kg (35 lb) for delta-phase plutonium-239. In practical applications, the amount of material required for criticality
Timeline of historic inventions (18,378 words) [view diff] no match in snippet view article find links to article
Carothers". Science History Institute. June 2016. Retrieved 20 March 2018. Plutonium 239, EDP-Sciences (EDITIONS DE PHYSIQUE) (& the Institut National de Physique
Fukushima Daiichi nuclear disaster (Unit 3 Reactor) (6,525 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
Pakistan and weapons of mass destruction (15,541 words) [view diff] exact match in snippet view article find links to article
52 kg. Correspondingly, the critical mass of a bare mass sphere of plutonium-239 is 8–10 kg. The bomb that destroyed Hiroshima used 60 kg of U-235 while
1945 in aviation (16,921 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
List of nuclides (1,691 words) [view diff] exact match in snippet view article find links to article
uranium-235); 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
Timeline of nuclear weapons development (11,424 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 (10,711 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 International Organization for Standardization standards, 18000-19999 (7,917 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