Introduction In this study, effective dose equivalent for the public due to internal exposure to 222radon (222Rn) was evaluated in three regions of Ramsar, a northern coastal city in Iran.                                Materials and Methods Measurements were carried out using a radon monitoring device. Outdoor and indoor radon concentrations were measured within 24 hours with an integration in...

Radon is the main source of natural radioactivity, and its measurement considered extremely important in radioprotection, given relationship with occurrence lung cancer. In last two years, measurements this radioactive gas were carried out Lima considering a grid 5 km2 population density to determine number be out. Cellulose nitrate nuclear track detectors exposed bare mode diffusion chamber us...

Telah dilakukan penelitian tentang penentuan aktivitas spesifik radionuklida alam pada sumber air panas di Nagari Pariangan Sumatera Barat. Tujuan ini untuk mengetahui 222Rn, 226Ra,232Th dan 40K. Penelitian menggunakan sampel yang diambil dari tiga berbeda. Aktivitas diukur dua alat yaitu Durridge Rad7 Radon Detector dengan protokol WAT250 222Rn spektrometer gamma Hasil diperoleh berdasarkan pe...

Introduction: Alpha particle emitters are very damaging and harmful when entering into the human body ,if   ingested or inhaled , swallowed or absorbed  into the lungs or bloodstream . Uranium (238U), Radium (226Ra) and Radon (222Rn) are typical alpha-particle emitters. Material and Methods: we measured the level of alpha particles emitted from 222Rn, 226Ra, and 238U in blood samples of 10 can...

Large amounts of uranium, radium and radium products are redistributed throughout the environment owing to the use of phosphate fertilizers. Potential radiological impacts resulting from direct exposure, inhalation and ingestion of foods grown with fertilizers are discussed. This paper describes a simple method to measure exhalation rate of 222RN from phosphate fertilizers, clay and potatoes in...

The Jacobi room model was applied to study the relative contributions from the unattached and attached fractions to the implanted activity of 210Po. It was found that under normal conditions, about 85% of the implantation was due to the unattached fraction. Sensitivity analysis was performed to identify the most important factors that influence the deposition and implantation of radon progeny. ...