Changes in the UNIMUG Code (Addendum to Technical Note EAV/NT-003/80)

摘要

With the insertion of new subroutines, the UNIMUG-VERSION 3 code will have options for condensing macroscopic and microscopic collision cross sections in the regions of the component isotopes in each region. It also allows calculation of the spectral indices, the ratio between two specific reactions of the isotopes selected in the groups and regions indicated. And it calculates the mean BUCKLING per region/group, per region, as well as the mean BUCKLING and fluxes from the reactor. With the introduction of dynamic allocation in memory, it increases the UNIMUG code, the ALOCDIN deck with the subroutines INICIA, POE, MOVE, STATUS and the LOC function. Moreover, the main program is divided into two subroutines: STATIC and VENENO (poison). The dynamic allocation memory makes it possible to move all the variables from the program using random storage on disk (MASS STORAGE-MS) thus eliminating the restrictions as to the number of regions, number of groups, number of intervals and length of the table of macroscopic and microscopic collision cross sections. (ERA citation 10:008596)