RESULTS OF THE BUILD-UP FACTORS CALCULATIONS USING THE PRECISION CODE FOR THE INFINITE MEDIUM COMPARED TO REFERENCED DATA

Preprint IBRAE-2022-01

Yu. E. Vaneyev

The results of build-up factors calculations in the tasks with point and flat isotropic gamma radiation sources in the infinite medium of iron using the precision code TDMCC are presented. The ranges of energy and optical thickness values are detected where relative deviations of calculated and referenced build-up factors are within ± 1%. Outside those ranges, sufficient understating of calculated build-up factors values (up to 90%) is found, connected to differences in gamma radiation interaction constants when getting referenced data and calculations by TDMCC code. The relations for correct comparison of calculated build-up factors with referenced data are recommended during a verification of code for gamma radiation shield parameters calculation.

Bibliographical reference

Vaneyev Yu. E. Results of the Build-up Factors Calculations using the precision code for the Infinite Medium Compared to Referenced Data. Preprint IBRAE-2022-01. — Moscow : Nuclear Safety Institute, 2022. — 13 p. — Bibliogr.: 19 items. — ISBN 978-5-6041296-9-2.

©Nuclear Safety Institute, 2022