''APROX'' - least square fit program for experimental data processing and performing of mathematical experiments on measurement of the system geometry

The Universal MNK program for processing the results of measurements of neutron fields in ''clean'' assemblies is described. The method of discarding extreme points is used for determining the field of fixing of the spectrum. The program may be used both for processing experimental results and for carrying out mathematical experiments. Distribution parameters and their errors are evaluated by calculation of experimental errors in the determination of the flux and the errors in the controlling variables by relative placement of the detectors. The program may be used for planning experiments on ''clean'' critical assemblies