title: Gamma radiation shielding and health physics characteristics of diaspore-flyash concretes.
abstract: Different gamma radiation interaction parameters has been measured experimentally for the prepared diaspore-flyash concretes at 59.54, 662, 1173 and 1332 keV using narrow-beam transmission geometry and results are found to be in good agreement with theoretical values computed with a computer programme, WinXCom. The radiation exposure rate and absorbed dose rate for the gamma radiation with and without shielding of diaspore-flyash concretes have been determined using linear attenuation results. The results show that on average, there is reduction of 95%, 53% and 40% in dose rate for gamma sources (241)Am, (137)Cs and (60)Co, respectively with diaspore-flyash concretes as shielding material. Other health physics parameters namely equivalent dose, effective dose, gamma flux and energy fluence rate have also been determined.
authors.affiliation: Department of Physics, Punjabi University, Patiala 147002, Punjab, India.
authors.forename: Kanwaldeep
authors.initials: K
authors.lastname: Singh
authors.forename: Sukhpal
authors.initials: S
authors.lastname: Singh
authors.forename: S P
authors.initials: SP
authors.lastname: Singh
authors.forename: Gurmel S
authors.initials: GS
authors.lastname: Mudahar
authors.forename: A S
authors.initials: AS
authors.lastname: Dhaliwal
mesh_terms: D065638:Absorption, Radiation; D060729:Coal Ash / Q000737:chemistry* / Q000528:radiation effects; D003198:Computer Simulation; D017076:Computer-Aided Design; D003252:Construction Materials / Q000032:analysis*; D004867:Equipment Design; D019544:Equipment Failure Analysis; D005720:Gamma Rays; D008422:Materials Testing; D008956:Models, Chemical; D011835:Radiation Protection / Q000295:instrumentation*; D012542:Scattering, Radiation
chemical_list: D060729:Coal Ash