Gamma ray spectroscopic analysis of building materials used in Tiruvannamalai, Tamilnadu, India.

Building materials cause direct radiation exposure because of their radium, thorium and potassium content. In this paper, samples of commonly used building materials in Tiruvannamalai, city, have been collected randomly over the city. The samples were tested for their radioactivity contents by using gamma spectroscopic measurements. All samples under investigation are within the recommended safety limit when used as building construction. [ABSTRACT FROM AUTHOR]