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Vor einem Tag · 239 Pu: alpha to 235 U: 24100 1.9 0.022 The principal fissile isotope in use. 240 Pu: alpha to 236 U, spontaneous fission 6560 6.8 910 The principal impurity in samples of the 239 Pu isotope. The plutonium grade is usually listed as percentage of 240 Pu. High rate of spontaneous fission hinders use in nuclear weapons. 241 Pu: beta-minus, to 241 ...
- silvery white, tarnishing to dark gray in air
- see Allotropes of plutonium
- [244]
Vor einem Tag · December 20, 1968. Trinity was the code name of the first detonation of a nuclear weapon, conducted by the United States Army at 5:29 a.m. MWT [a] (11:29:21 GMT) on July 16, 1945, as part of the Manhattan Project . The test was of an implosion-design plutonium bomb, nicknamed the "gadget", of the same design as the Fat Man bomb later detonated ...
- July 16, 1945, (78 years ago)
- Trinity Site, New Mexico
Vor einem Tag · Nuclear power is the use of nuclear reactions to produce electricity. Nuclear power can be obtained from nuclear fission, nuclear decay and nuclear fusion reactions. Presently, the vast majority of electricity from nuclear power is produced by nuclear fission of uranium and plutonium in nuclear power plants. Nuclear decay processes are used in ...
Vor einem Tag · Srncik, M, Tims, S, De Cesare, M et al 2014, 'First measurements of 236 U concentrations and 236 U/ 239 Pu isotopic ratios in a Southern Hemisphere soil far from nuclear test or reactor sites', Journal of Environmental Radioactivity, vol. 132, pp. 108-114.
Vor 15 Stunden · Moreover, a 241 Am– 239 Pu mixture α radioactive source was used to test the BMCND, indicating that the BMCND has the capacity for α charged particle detection. The results of the drift voltage experiments demonstrate that 1200 V can acquire a relatively ideal count, confirming a 2500 V drift voltage, considering higher counts and instrument safety. The results of the photo-neutron source ...
Vor 3 Tagen · Plutonijev izotop Pu-240 također nastaje pri radu nuklearnih reaktora apsorpcijom neutrona u plutoniju-239. Kao parno-parna jezgra po broju protona i neutrona, plutonij-240 je sličan uraniju-238, pa spori neutroni ne mogu potaknuti fisiju. Istrošeno reaktorsko gorivo uz plutonij-239 uvijek sadržava i plutonij-240, s udjelom koji raste s vremenom upotrebe goriva u reaktoru. Zbog toga ...
Vor 6 Tagen · Lewis Hamilton’s F1 movie budget has now surpassed $300 million to become one of the most expensive films ever made. The movie is rumoured to be called ‘Apex’, with Brad Pitt starring a retired F1 driver who returns to the sport to mentor a promising young talent (Damson Idris). READ MORE: Hamilton insists Cullen 'belongs in the sport'.
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