Survey Gamma Radiation Measurements in Commercially-used Natural Tiling Rocks in Iran
نویسندگان
چکیده
The gamma radiation in samples of a variety of natural tiling rocks (granites) produced and imported in Iran use in the building industry was measured, employing high-resolution Gamma-ray spectroscopy. The rock samples were pulverized, sealed in 0.5 liter plastic Marinelli beakers, and measured in the laboratory with an accumulating time between 50000 and 80000 second each. From the measured Gamma-ray spectra, activity concentrations were determined for Th (range from 6.5 to 172.2 Bq kg), U (from 7.5 to 178.1 Bq kg ),Ra( from 3.8 to 94.2 Bq kg ) K (from 556.9 to 1539.2 Bq kg). From the 29 samples measured in this study, “Nehbndan ( Berjand )” appears to present the highest concentrations for Th,“Big Red Flower (China) ”for U , “ Khoram dareh” for 226 Ra and “ Peranshahr” for K , respectively. Keywords—activity concentration, natural radioactivity, tiling rocks (granites)
منابع مشابه
Gamma radiation measurements and dose rates in commercially-used natural tiling rocks (granites).
The gamma radiation in samples of a variety of natural tiling rocks (granites) imported in Cyprus for use in the building industry was measured, employing high-resolution gamma-ray spectroscopy. The rock samples were pulverised, sealed in 1-l plastic Marinelli beakers, and measured in the laboratory with an accumulating time between 10 and 14 h each. From the measured gamma-ray spectra, activit...
متن کاملNatural Gamma Radiation in Primary Schools of Zanjan Province
Background: Environmental gamma ray refers to the gamma radiation from terrestrial sources and building materials. In enclosed spaces radiation can become a health hazard leading to potential increase in the rates of lung cancer. The goal of this study is to assess the exposure to natural gamma radiation of children in the schools of Zanjan province. Method:The natural gamma radiation was asse...
متن کاملGamma background radiation measurement in Lorestan province, Iran
Background: The exposure of human being to ionize radiation from natural sources is a continuing, inescapable feature of life on earth. Direct measurement of absorbed dose rates in air has been carried out in many countries of the world during the last few decades. Such investigations can be useful for assessment of public dose rates, the performance of epidemiological studies, and kee...
متن کاملGamma Radiation Measurement due to Natural Radioactivity in Hot Water Spring of Behbahan
Introduction: Many people use hot water springs to treat some diseases, such as rheumatism, arthritis, and skin diseases, but they are unaware of the presence of natural radioactive substances that may be found in hot water springs. An effective way to understand the radiation risk of these elements are measuring the dose rate of radiation. In this study, for the first time, ga...
متن کاملHealth Risk Assessment of Natural Background Radiation in Residents of Khorramabad, Iran
Introduction Radioactive materials naturally exist in the world. Indeed, approximately 82% of human-absorbed radiation doses, which are out of human control, arise from natural sources of radiation including cosmic, terrestrial, and exposure through inhalation or ingestion. Thus, the aim of the present study was to estimate health risk, as well as the effective and organ doses from naturally oc...
متن کامل