Solution of the kinetic multi-group equation accounting for thermalization in the P3-approximation for a plane geometry

A method and program for solving the multi-rate kinetic equation for transfer of neutrons in plane geometry in P3 approximation with isotropic dispersion with or without consideration of thermalization are described. The iteration net method and algorithm of matrix factorization are used for finding the solution. The SLAB program is written in ALGOL-60. The quality of the arithmetic operations for solving the problem is directly proportional to the number of groups, the number of points in the net, and the number of iterations. With a maximum number of points in the net, the proportionality of the performance of one external iteration does not exceed 1.5 per group. Input of the programs and initial data is through punched cards. The principal block diagrams and the text of the programs are given