title: Attenuation coefficients of soils and some building materials of Bangladesh in the energy range 276-1332 keV.
abstract: The linear and mass attenuation coefficients of different types of soil, sand, building materials and heavy beach mineral samples from the Chittagong and Cox's Bazar area of Bangladesh were measured using a high-resolution HPGe detector and the gamma-ray energies 276.1, 302.8, 356.0, 383.8, 661.6 and 1173.2 and 1332.5 keV emitted from point sources of 133Ba, 137Cs and 60Co, respectively. The linear attenuation coefficients show a linear relationship with the corresponding densities of the samples studied. The variations of the mass attenuation coefficient with gamma-ray energy were exponential in nature. The measured mass attenuation coefficient values were compared with measurements made in other countries for similar kinds of materials. The values are in good agreement with each other in most cases.
authors: Radiactivity Testing and Monitoring Laboratory, Bangladesh Atomic Energy Commission, Chittagong. rtl@globalctg.net
authors: M N
authors: MN
authors: Alam
authors: M M
authors: MM
authors: Miah
authors: M I
authors: MI
authors: Chowdhury
authors: M
authors: M
authors: Kamal
authors: S
authors: S
authors: Ghose
authors: R
authors: R
authors: Rahman
mesh_terms: D001459:Bangladesh; D001465:Barium Radioisotopes / Q000032:analysis*; D002588:Cesium Radioisotopes / Q000032:analysis*; D003037:Cobalt Radioisotopes / Q000032:analysis*; D003252:Construction Materials / Q000032:analysis*; D005720:Gamma Rays; D008903:Minerals / Q000737:chemistry; D012990:Soil Pollutants, Radioactive / Q000032:analysis*
chemical_list: D001465:Barium Radioisotopes; D002588:Cesium Radioisotopes; D003037:Cobalt Radioisotopes; D008903:Minerals; D012990:Soil Pollutants, Radioactive