Neutron activation analysis of ceramic tiles and its component and radon exhalation rate  

作　　者：A.El-Shershaby A.Sroor F.Ahmed A.S.Abdel-Haleem Z.Abdel 

机构地区：[1]Nuclear Physics Laboratory,Faculty of Women,Ain-Shams University,Nuclear Physics Laboratory,Faculty of Women,Ain-Shams University,Ionizing Radiation Department,National Institute for Standards,Hot Laboratories Center,Atomic Energy Authority,Nuclear Physics Laboratory,Faculty of Women,Ain-Shams University Cairo, Egypt,Cairo, Egypt,Giza, Egypt,Cairo, Egypt,Cairo, Egypt

出　　处：《Journal of Environmental Sciences》2004年第1期94-99,共6页环境科学学报（英文版）

摘　　要：The concentrations of 20 trace elements in several ceramics tiles and ceramic composites used in Egypt were elementally analyzed by neutron activation analysis(NAA) technique. The samples and standard were irradiated with reactor for 4 h(in the Second Research Egyptian Reactor(Et-RR-2)) with thermal neutron flux 5.9×10 13 n/(cm 2·s).The gamma-ray spectra obtained were measured for several times by means of the hyper pure germanium detection system(HPGe). Also a solid state nuclear track detector(SSNTD) CR-39, was used to measure the emanation rate of radon for these samples. The radium concentrations were found to vary from 0.39—3.59 ppm and the emanation rates were found to vary from (0.728—5.688) × 10 -4 kg/(m 2· s).The elemental analysis of the ceramic tiles and ceramic composites have a great importance in assigning the physical properties and in turn the quality of the material.The concentrations of 20 trace elements in several ceramics tiles and ceramic composites used in Egypt were elementally analyzed by neutron activation analysis(NAA) technique. The samples and standard were irradiated with reactor for 4 h(in the Second Research Egyptian Reactor(Et-RR-2)) with thermal neutron flux 5.9×10 13 n/(cm 2·s).The gamma-ray spectra obtained were measured for several times by means of the hyper pure germanium detection system(HPGe). Also a solid state nuclear track detector(SSNTD) CR-39, was used to measure the emanation rate of radon for these samples. The radium concentrations were found to vary from 0.39—3.59 ppm and the emanation rates were found to vary from (0.728—5.688) × 10 -4 kg/(m 2· s).The elemental analysis of the ceramic tiles and ceramic composites have a great importance in assigning the physical properties and in turn the quality of the material.

关 键 词：CERAMIC neutron activation analysis(NAA) radon emanation solid state nuclear track detector(SSNTD) 

分 类 号：X591[环境科学与工程—环境工程]