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  2. Six factor formula - Wikipedia

    en.wikipedia.org/wiki/Six_factor_formula

    The multiplication factor, k, is defined as (see nuclear chain reaction): k = ⁠ number of neutrons in one generation / number of neutrons in preceding generation ⁠. If k is greater than 1, the chain reaction is supercritical, and the neutron population will grow exponentially.

  3. Nuclear reactor physics - Wikipedia

    en.wikipedia.org/wiki/Nuclear_reactor_physics

    The "Six-factor formula" is the neutron life-cycle balance equation, which includes six separate factors, the product of which is equal to the ratio of the number of neutrons in any generation to that of the previous one; this parameter is called the effective multiplication factor k, also denoted by K eff, where k = Є L f ρ L th f η, where ...

  4. List of equations in nuclear and particle physics - Wikipedia

    en.wikipedia.org/wiki/List_of_equations_in...

    The following apply for the nuclear reaction: a + b ↔ R → c in the centre of mass frame , where a and b are the initial species about to collide, c is the final species, and R is the resonant state .

  5. Nuclear chain reaction - Wikipedia

    en.wikipedia.org/wiki/Nuclear_chain_reaction

    The six factor formula effective neutron multiplication factor, k eff, is the average number of neutrons from one fission that cause another fission. The remaining neutrons either are absorbed in non-fission reactions or leave the system without being absorbed.

  6. Four factor formula - Wikipedia

    en.wikipedia.org/wiki/Four_factor_formula

    The four-factor formula, also known as Fermi's four factor formula is used in nuclear engineering to determine the multiplication of a nuclear chain reaction in an infinite medium. Four-factor formula: k ∞ = η f p ε {\displaystyle k_{\infty }=\eta fp\varepsilon } [ 1 ]

  7. Nuclear magnetic moment - Wikipedia

    en.wikipedia.org/wiki/Nuclear_magnetic_moment

    The g-factor is a dimensionless factor associated to the nuclear magnetic moment. This parameter contains the sign of the nuclear magnetic moment, which is very important in nuclear structure since it provides information about which type of nucleon (proton or neutron) is dominating over the nuclear wave function.

  8. Dollar (reactivity) - Wikipedia

    en.wikipedia.org/wiki/Dollar_(reactivity)

    In nuclear reactor physics discussions, the symbols are often appended to the end of the numerical value of reactivity, such as 3.48$ or 21 ¢. [1] [2] Reactivity (denoted ρ or ΔK/K) is related to the effective neutron multiplication factor (k eff), the average number of all neutrons from one fission that cause another fission. [2] ρ = ⁠ k ...

  9. Woods–Saxon potential - Wikipedia

    en.wikipedia.org/wiki/Woods–Saxon_potential

    Woods–Saxon potential for A = 50, relative to V 0 with a = 0.5 fm and =. The Woods–Saxon potential is a mean field potential for the nucleons (protons and neutrons) inside the atomic nucleus, which is used to describe approximately the forces applied on each nucleon, in the nuclear shell model for the structure of the nucleus.