Data and code for: Pumice versus basaltic scoria as host aggregates for bismuth oxide and barite in cementitious gamma-ray shields

Data and code for the article "K x-ray buildup and porosity in Bi2O3- and barite-loaded pumice and scoria shielding composites: a Geant4 test of geometric-progression buildup factors" (S. Ceylan). The package contains the original Phy-X/PSD output files; the source code and input files of the two Geant4 applications (narrow-beam attenuation and point-source buildup with K and L x-ray emission) and of an independently coded check of the buildup application; all Monte Carlo results; the density model and the uncertainty analysis; and the Python scripts that produce every value, table and figure of the article and its supplementary material, together with a results workbook. See README.md for the folder structure, the correspondence of figure and table numbers, and the steps to reproduce the results. Code: MIT licence; data and results: CC BY 4.0. Version 1.1: README updated to the final title and the figure and table numbers of the article; script net_numbers.py added. All data and results are unchanged from version 1.0.