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Nuclear fission - Wikipedia


Some neutrons will impact fuel nuclei and induce further fissions, ... In-situ plutonium production also contributes to the neutron chain reaction in other types of ... fast neutrons from the fissil...

Neutrons released in a fission reaction can strike other nuclei and ...


A chain reaction ... A chain reaction. ... Neutrons released in a fission reaction can strike other nuclei and cause? Neutrons released in a fission reaction can ...

Uranium-235 Chain Reaction - HyperPhysics


Form of Energy Released, Amount of Energy Released (MeV) ... If at least one neutron from each fission strikes another U-235 nucleus and initiates ... A critical chain reaction can be achieved at low concentrations of U-235 if the neutrons from ...

Nuclear Energy - The Theory - Electropaedia


In nuclear reactions it is the sub-atomic particles in the atomic nucleus, the protons and .... The fission reaction can proceed uncontrollably and needs to be slowed down ... It neither splits nor fuses with other atoms in a nuclear reaction. ..... results in the release of a troublesome surplus neutron which can cause problems in ...

atomic bomb | fission device | Britannica.com


Apr 29, 2016 ... When a neutron strikes the nucleus of an atom of the isotopes ... This series of rapidly multiplying fissions culminates in a chain reaction in which nearly all the ... Many isotopes of uranium can undergo fission, but uranium-235, which is ... chances that one of the released neutrons will cause another fission .....

21.7 Nuclear Fission


Our discussion of the energy changes in nuclear reactions (Section 21.6) revealed an ... If one fission produces 2 neutrons, these 2 neutrons can cause two fissions. The 4 neutrons thereby released can produce four fissions, and so forth, ... they have the opportunity to strike another nucleus and cause additional fission.

Energy from the Nucleus

electron6.phys.utk.edu/phys250/modules/module 5/nuclear_energy.htm

Nuclear energy can be produced by either of two types of reactions, fission, the splitting ... Energy Released per gram of Fuel (erg/gm) ... These free neutrons may strike other Uranium nuclei, causing further fission reactions. ... The result is that several other nuclei fission, and each of these cause several others to fission .

What Is Nuclear Fission? - Definition & Process - Video & Lesson ...


If one fission reaction produces two neutrons, these two neutrons can cause two ... release four neutrons, those four neutrons split other nuclei, and could then ...

Fission vs. Fusion – What's the Difference? | Duke Energy | Nuclear ...


Jan 30, 2013 ... Inside the sun, fusion reactions take place at very high temperatures and ... Nuclear fission releases heat energy by splitting atoms. ... During the process, a neutron is accelerated and strikes the target nucleus, which in the majority ... become projectiles that initiate other fission reactions, or chain reactions.

Fusion and Fission | S-cool, the revision website


Sep 28, 2015 ... If - on the other hand - the neutrons are allowed to strike other fissionable nuclei, further fissions can occur. ... If more than one fission inducing neutron on average is released, the result is an ... The key to controlling nuclear reactions is to produce just the right number of neutrons to cause a self-sustaining ...

More Info

Fusion vs. Fission - Fusion Torch


When a stray neutron strikes a 235U nucleus, it is at first absorbed into it. ... If more 235U is present, those 2 neutrons can cause 2 more atoms to split. ... Animation of a chain reaction fissioning many 235U atoms ... Nuclear energy can also be released by fusion of two light elements (elements with low atomic numbers).

What is Fission? Definition & Facts about Nuclear Energy


Sep 19, 2012 ... An atom contains protons and neutrons in its central nucleus. ... it has been bombarded by other subatomic particles known as neutrinos. ... on to cause two separate reactions, each of which can cause at least two more. A single impact can jumpstart a chain reaction, driving the release of still more energy.

Science Behind the Atom Bomb | Atomic Heritage Foundation


Fission occurs when a neutron strikes the nucleus of either isotope, splitting the ... This is known as a chain reaction and is what causes an atomic explosion. ... that neutrons released by fission will strike another nucleus, thus producing a ... the spontaneous fission of the atoms, which would cause the bomb to fizzle, and ...