Radiological hazard analysis of Malaysia's ceramic materials using generic and RESRAD-BUILD computer code approach.

In this study, 52 samples of ceramic materials were studied for 226Ra, 222Rn, 232Th and 40K natural radionuclides using high-purity germanium detector and relevant radiological hazards parameters were also appraised. Furthermore, the long-term variations of the total effective dose equivalent (TEDE) and effects of wall thickness on TEDE were established and analyzed using RESRAD-BUILD computer code. The observed percentage variations of TEDE are 2% and 8% for 226Ra and 232Th, respectively, while no variation observed for external dose due to 40K. The estimated indoor doses from the studied ceramic materials are all below the recommended maximum limit. [ABSTRACT FROM AUTHOR]