*  Nuclear fission reactor, a vented nuclear fission fuel module, methods therefor and a vented nuclear fission fuel module...
... all nuclear fission reactors, fission products are produced. Fission products absorb neutrons. Normally, in the breeder reactor ... by neutron capture during the fission process, such as an alloy of zirconium, uranium, plutonium and minor actinides (e.g., ... energy neutrons in the fission process. It is known that, in such fast neutron reactors, there is a greater excess of neutrons ... venting the fission product. 2. The nuclear fission reactor of claim 1, wherein the fission product includes a gaseous fission ...
  http://www.patentsencyclopedia.com/app/20110150167
*  London Nuke Plant Loses 30 Kilos of Plutonium - Slashdot
... cannot account for nearly 30 kilograms of plutonium, but authorities believe it is an accounting issue rather than a loss of ... They are then absorbed into the lymphatic system of the body where they cause cancer by irradiating local cells and attacking ... If there's more than 7% Pu-240 in the mix, the chances are that the Pu-240 will spontaneously fission, making it next to ... the different forms of an element having different numbers of neutrons in their nuclei -- can be used to make a nuclear weapon ...
  https://science.slashdot.org/story/05/02/18/0027246/london-nuke-plant-loses-30-kilos-of-plutonium
*  Plutonium in the environment - Wikipedia
Much of this plutonium is absorbed into sediments of lakes, rivers and oceans. However, about 66% of the plutonium from a bomb ... 133Ba and 241Am were created by the neutron activation of barium and plutonium inside the bomb. The barium was present in the ... In these experiments where no or very little nuclear fission occurs, plutonium metal has been scattered around the test sites. ... The Plutonium-238 used in RTGs has a half-life of 88 years, as opposed to the plutonium-239 used in nuclear weapons and ...
  https://en.wikipedia.org/wiki/Plutonium_in_the_environment
*  Fun Facts and FAQ
Fission occurs when a uranium or plutonium atom absorbs a neutron and the atom splits. In the process, the atom produces ... What is nuclear fission? Fission is the splitting of atoms into smaller parts. Some atoms, themselves tiny, split when they are ... an average of 2.5 each fission), which go on to split more U-235 and Pu-239 atoms, which create more neutrons, and so on. The ... Enriching uranium increases the proportion of uranium atoms that can be 'split' by fission to release energy (in the form of ...
  https://www.georgiapower.com/company/plant-vogtle/fun-facts-and-faq.html
*  Plutonium-239 - Wikipedia
... plutonium-239. Plutonium-239 present in reactor fuel can absorb neutrons and fission just as uranium-235 can. Since plutonium- ... and these neutrons can be absorbed by uranium-238 to produce plutonium-239 and other isotopes. Plutonium-239 can also absorb ... the plutonium-239 is fissioned in the same fuel rods in which it is produced. Fissioning of plutonium-239 provides about one- ... Plutonium-240, in addition to being a neutron emitter after fission, is a gamma emitter in that process as well, and so is ...
  https://en.wikipedia.org/wiki/Plutonium-239
*  Chemtrails and Radioactive Cesium - Chemtrails Spraying and Radioactive Cesium - RADIOACTIVE CESIUM Chemtrail Information -...
Radioactive cesium-137 is produced when uranium and plutonium absorb neutrons and undergo fission. Examples of the uses of this ... The splitting of uranium and plutonium in fission creates numerous fission products. Cesium-137 is one of the more well-known ...
  http://stopsprayingcalifornia.com/Radio-Active-Cesium.html
*  Energy From Thorium Discussion Forum • View topic - NNL Reports on Advanced Reactors and Thorium Fuel Cycle
But plutonium-239 performs poorly, fissioning only 2 out of 3 times it absorbs a thermal neutron. The other 1 out of 3 times it ... By contrast, uranium-233 will fission 9 out of 10 times it absorbs a thermal neutron.. If weapons plutonium production is ... If plutonium-239 was more likely to fission than absorb in the thermal spectrum, then sustained conversion of uranium-238 to ... Thorium in the outer region of the reactor, called the "blanket", absorb about half of the neutrons produced in fission. As ...
  http://energyfromthorium.com/forum/viewtopic.php?f=50&t=3803
*  Nuclear reactor - Wikipedia
When a large fissile atomic nucleus such as uranium-235 or plutonium-239 absorbs a neutron, it may undergo nuclear fission. The ... The common fission product Xenon-135 produced in the fission process acts as a neutron poison that absorbs neutrons and ... Long before all possible fission has taken place, the buildup of long-lived neutron absorbing fission byproducts impedes the ... Fast neutron reactors use fast neutrons to cause fission in their fuel. They do not have a neutron moderator, and use less- ...
  https://en.wikipedia.org/wiki/Nuclear_reactor
*  PPT - What is Nuclear Power? PowerPoint Presentation - ID:1282900
Fission. If a uranium nucleus absorbs a neutron, it can break up and release: -Energy (Heat) -More neutrons -Other radiation. ... Also Plutonium. Nuclear Reactor (simplified). Slideshow 1282900 by kitty ... It is simply electricity made from fissioning uranium and plutonium. ... It is simply electricity made from fissioning uranium and plutonium. Fission. If a uranium nucleus absorbs a neutron, it can ...
  https://www.slideserve.com/kitty/what-is-nuclear-power
*  Physics 2 - Revision Cards in GCSE Physics
c) For fission to occur, the uranium-235 or plutonium-239 nucleus must first absorb a neutron.. d) The nucleus undergoing ... Nuclear fission. a) There are two fissionable substances in common use in nuclear reactors: uranium-235 and plutonium-239.. b) ... fission splits into two smaller nuclei and two or three neutrons and energy is released.. e) The neutrons may go on to start a ... Nuclear fission and nuclear fusion. During the process of nuclear fission, atomic nuclei split. This process releases energy, ...
  https://getrevising.co.uk/revision-cards/physics_2_15
*  Uranium-236 - Wikipedia
The second most used fissile isotope plutonium-239 can also fission or not fission on absorbing a thermal neutron. The product ... 237Np may eventually absorb another neutron, becoming 238Np, which quickly beta decays to plutonium-238, or fissioning (237Np ... U-235 that absorbs a thermal neutron may go one of two ways. About 82% of the time, it will fission. About 18% of the time it ... Specifically from thermal neutron fission of U-235, e.g. in a typical nuclear reactor. Milsted, J.; Friedman, A. M.; Stevens, C ...
  https://en.wikipedia.org/wiki/Uranium-236
*  How do fast breeder reactors differ from regular nuclear power plants? - Scientific American
Fast neutrons are ideal for plutonium production because they are easily absorbed by U238 to create Pu239, and they cause less ... More neutrons are released in turn and continuous fission is achieved. Neutrons produced by fission have high energies and move ... a nuclear reactor can derive a significant amount of energy from such plutonium fission. But because this plutonium fissions, ... cools the neutrons to optimum energies for causing fission. These slower neutrons are also called thermal neutrons because they ...
  https://www.scientificamerican.com/article/how-do-fast-breeder-react/
*  Project Y - Wikipedia
... conference envisioned breeding plutonium in nuclear reactors from uranium-238 atoms that absorbed neutrons from fissioning ... Bacher was able to report that the number of neutrons per fission of plutonium-239 was 2.64 ± 0.2, about 1.2 times as much as ... when it used the larger of the two Van de Graaff generators to measure the ratio of the neutron per fission in plutonium ... it being simply created by a plutonium-239 nucleus absorbing a neutron. What had not been suspected was its high spontaneous ...
  https://en.wikipedia.org/wiki/Project_Y
*  Plutonium-241 - Wikipedia
... isotopes with an odd number of neutrons are both more likely to absorb a neutron, and more likely to undergo fission on neutron ... Plutonium-241 (Pu-241) is an isotope of plutonium formed when plutonium-240 captures a neutron. Like Pu-239 but unlike 240Pu, ... Both Cm-242 and Pu-242 are much less likely to absorb a neutron, and even less likely to fission; however, 242Cm is short-lived ... and a similar probability of fissioning on neutron absorption, around 73%. In the non-fission case, neutron capture produces ...
  https://en.wikipedia.org/wiki/Plutonium-241
*  BikeSketch: octubre 2011
Cesium-137 is just one of the many products created when uranium and plutonium absorb neutrons and undergo fission, such as in ... Radioactive plutonium has recently been discovered in six localities, including the city of Iatate, some 40 km from the plant. ... Once the clay absorbs the radioactive material, it prevents its transmition into the environment. It was professor Hiromichi's ... Yamasaki's theory that clay does indeed absorb and retain radioactive cesium, there is no clay on the persimmons, nor in the ...
  http://bikesketch.blogspot.com/2011/10/
*  William B Stoecker - The masonic bomb - Unexplained Mysteries
Obviously, this means a different energy than the one needed for fission. Like U-235, plutonium also releases two neutrons, ... When U-238 is struck by a neutron of the right energy it absorbs the neutron and changes into Pu-239. ... or fissioned, by neutrons. Such massive atoms release some of the "binding energy" which holds the neutrons and the positively ... which will fission if struck by a neutron of the appropriate energy, but will not release more neutrons when it splits. A tiny ...
  http://www.unexplained-mysteries.com/column.php?id=220145
*  Manhattan Project - Wikipedia
... creating plutonium in nuclear reactors where uranium-238 atoms absorbed neutrons that had been emitted from fissioning uranium- ... Seaborg had correctly predicted in March 1943 that some of the plutonium-239 would absorb a neutron and become plutonium-240. ... the reactor-bred plutonium had a higher concentration of plutonium-240, resulting in up to five times the spontaneous fission ... At Hanford, plutonium production fell off as Reactors B, D and F wore out, poisoned by fission products and swelling of the ...
  https://en.wikipedia.org/wiki/Manhattan_Project
*  Uranium 101 | Blue Sky Uranium Corp.
... created when 238U absorbs a neutron) and actinide wastes from the fission process. Reprocessing is the chemical separation of ... The plutonium can be blended with natural UO2 to create mixed oxide fuel (MOX), a fuel used in some reactors in Belgium, ... Its nucleus can be made to split (or fission) inside a nuclear reactor with the release of great quantities of energy which can ... It has 92 protons, 92 electrons and either 145 or 146 neutrons. Uranium atoms that contain 146 protons are referred to as the " ...
  https://blueskyuranium.com/investors/uranium-101
*  MuonRay: December 2014
It was expected that lithium-6 isotope would absorb a neutron from the fissioning plutonium and emit an alpha particle and ... However, when lithium-7 is bombarded with energetic neutrons, rather than simply absorbing a neutron, it captures the neutron ... The extra neutron produced by fusion and the extra neutron released directly by lithium-7 decay produced a much larger neutron ... An advantage of the Lithium blanket is that neutrons from the D-T recation will be absorbed, and by doing that the blanket acts ...
  http://muonray.blogspot.ie/2014/12/
*  Operation Crossroads - Wikipedia
A plutonium fission event produces, on average, 2.9 neutrons, most of which are consumed in the production of more fission, ... most of these environmental neutrons are absorbed by superheated air which rises into the stratosphere, along with the fission ... 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 ... of plutonium which did not undergo fission and the 3 pounds (1.4 kg) of fission products were scattered. Plutonium is not a ...
  https://en.wikipedia.org/wiki/Operation_Crossroads
*  Manh(a)ttan Recap: Let's Get Critical [SPOILERS] - Scientific American Blog Network
While you're waiting, lots of extra neutrons continue to fly around the reactor, and some of them get absorbed by the plutonium ... Pu-240 is fissile, which is good for a bomb, but it undergoes spontaneous fission, which is bad. It happens so quickly there is ... The longer Pu-239 sits in the reactor, the more likely it is to absorb extra neutrons and become Pu-240, which absorbs neutrons ... since this would absorb enough neutrons to dampen it. The experiment went off without a hitch, however. Instead of disaster, " ...
  https://blogs.scientificamerican.com/cocktail-party-physics/manh-a-ttan-recap-let-8217-s-get-critical-spoilers/
*  Control rod - Wikipedia
... indium and cadmium that are capable of absorbing many neutrons without themselves fissioning. Because these elements have ... Control rods are used in nuclear reactors to control the fission rate of uranium and plutonium. They are composed of chemical ... The rods may have the form of tubes filled with neutron-absorbing pellets or powder. They can be made out of stainless steel or ... A disadvantage is less titanium and oxide absorption, that other neutron absorbing elements do not react with the already high- ...
  https://en.wikipedia.org/wiki/Control_rod
*  Weapons-grade nuclear material - Wikipedia
Pu-240 is produced when Pu-239 absorbs an additional neutron and fails to fission. Pu-240 and Pu-239 are not separated by ... Pu-240 has a high rate of spontaneous fission, which can cause a nuclear weapon to pre-detonate. This makes plutonium ... Specifically from thermal neutron fission of U-235, e.g. in a typical nuclear reactor. Milsted, J.; Friedman, A. M.; Stevens, C ... Pu-239 is produced artificially in nuclear reactors when a neutron is absorbed by U-238, forming U-239, which then decays in a ...
  https://en.wikipedia.org/wiki/Weapons-grade_nuclear_material
*  99m | Article about 99m by The Free Dictionary
A transition element, symbol Tc, atomic number 43; derived from uranium and plutonium fission products; chemically similar to ... used to absorb slow neutrons in reactor technology. ... The 99Tc yield upon fission of 235U is approximately 6 percent ... Technetium was once very rare and expensive but is now obtained in quantity from nuclear reactor fission products. Although the ... Technetium in the form of pertechne-tates, oxides, and sulfides is obtained from mixtures of fission products using extraction ...
  http://encyclopedia2.thefreedictionary.com/99m
*  Spontaneous fission - Wikipedia
239 Pu will invariably contain a certain amount of 240 Pu due to the tendency of 239 Pu to absorb an additional neutron during ... 240 Pu 's high rate of spontaneous fission events makes it an undesirable contaminant. Weapons-grade plutonium contains no more ... Spontaneous fissions release neutrons as all fissions do, so if a critical mass is present, a spontaneous fission can initiate ... The first nuclear fission process discovered was the fission induced by neutrons. Because cosmic rays produce some neutrons, it ...
  https://en.wikipedia.org/wiki/Spontaneous_fission