Explore: Fission Cross Sections

capture cross section for that reaction. Isotopes that undergo fission are fissionable fuels and have a corresponding fission cross section. The remaining

absorption (radiative capture belongs to this type), f: fission, the corresponding notation for cross-sections being: σ s {\displaystyle \sigma _{s}} , σ γ {\displaystyle

boosted fission weapon usually refers to a type of nuclear bomb that uses a small amount of fusion fuel to increase the rate, and thus yield, of a fission reaction

depends upon its nuclear properties (specifically, its nuclear fission cross-section), density, shape, enrichment, purity, temperature, and surroundings

a thermal neutron inducing fission in 238 U, neutron absorption is orders of magnitude more likely. Fission cross sections are a measurable property related

years. It was discovered in 1935 by Arthur Jeffrey Dempster. Its fission cross section for slow thermal neutrons is about 584.3±1 barns. For fast neutrons

spontaneous fission or even induced fission with fast neutrons; uranium-235, and to a lesser degree uranium-233, have a much higher fission cross-section for

absorption cross sections so that over the life of the fuel cycle they are eliminated as more fission products with high capture cross section are generated

The fission-fragment rocket is a rocket engine design that directly harnesses hot nuclear fission products for thrust, as opposed to using a separate

absorption cross sections, allowing one nucleus to serially absorb multiple neutrons. Fission of heavier actinides produces more of the heavier fission products