Accession Number : ADA297201

Title :   Effect Of The Temperature Of The Moderator on The Velocity Distribution of Neutrons With Numerical Calculations For H As Moderator,

Corporate Author : ATOMIC ENERGY COMMISSION WASHINGTON DC

Personal Author(s) : Wigner, E. P. ; Wilkins, J. E., Jr

PDF Url : ADA297201

Report Date : 14 SEP 1944

Pagination or Media Count : 11

Abstract : In this paper we set up an integral equation governing the energy distribution of neutrons that are being slowed down uniformly throughout the entire space by a uniformly distributed moderator whose atoms are in motion with a Maxwellian distribution of velocities. The effects of chemical binding and crystal reflection are ignored. When the moderator is hydrogen, the integral equation is reduced to a differential equation and solved by numerical methods. in this manner we obtain a refinement of the dv/v2 law.

Descriptors :   *NEUTRON FLUX, *REACTOR MODERATORS, VELOCITY, COMPUTATIONS, NUMERICAL ANALYSIS, CRYSTALS, REFLECTION, HYDROGEN, DIFFERENTIAL EQUATIONS, MAXWELLS EQUATIONS, INTEGRAL EQUATIONS, DISTRIBUTION FUNCTIONS.

Subject Categories : Fission Reactor Physics
      Nuclear Physics & Elementary Particle Physics

Distribution Statement : APPROVED FOR PUBLIC RELEASE