A GUI-based internal dose calculator using ICRP phantoms and S-value datasets. Supports adult male and female models for I-131, Lu-177, and Ra-223.

This project presents the analysis of natural radionuclide concentrations in quartz sand samples collected from former tin mining areas in Bangka Belitung, Indonesia. The study utilizes gamma spectrometry to identify and quantify radionuclides from uranium and thorium decay series.