نتایج جستجو برای: natural radioactivity hazard

تعداد نتایج: 552402  

Journal: :EPJ Nuclear Sciences & Technologies 2022

This work deals with the measurement of radioactivity concentrations from different cement samples collected South Gondar Zone, Ethiopia. The naturally occurring radioisotopes and radiation health impact indices caused by these nuclides in are indisputable dwellings. Specifically, average for 226 Ra, 232 Th 40 K were estimated as 76.53, 81.67, 407 Bq kg −1 , respectively. It was seen that all m...

Journal: :iranian journal of radiation research 0
a.a. fathivand nuclear science and technology research institute and national radiation protection department, radiation application research school, tehran, iran j. amidi nuclear science and technology research institute and national radiation protection department, radiation application research school, tehran, iran s. hafezi nuclear science and technology research institute and national radiation protection department, radiation application research school, tehran, iran

background: some particular areas contain natural radionuclide at levels much higher than those usually present in earth's crust. the radiological impact of the use of zirconium ore in zirconium industry is due to internal exposure of the lung by alpha particles and external exposure of the body by the gamma rays. the result of gamma spectrometry measurement of the concentrations of the na...

Journal: :iranian journal of radiation research 0
s.j. dhawal center for interdisciplinary research, d.y patil university, kolhapur-416004, ms, india g.s. kulkarni department of technology, shivaji university, kolhapur- 416004, ms, india s.h. pawar center for interdisciplinary research, d.y patil university, kolhapur-416004, ms, india

background: the natural radionuclides are always present in soil and care needs to be taken to minimize the radiation dose to humans. these radionuclides are mostly gamma ray emitting radionuclides which contribute to the radiation dose in long term behavior of radionuclides in soil. health hazards associated with natural radioactivity are of great concern and it is necessary to assess risk due...

Journal: :environmental studies of persian gulf 2014
reza pourimani zahra nemati

the activity concentrations of 235u, 232th, 226ra, 40k and 137cs in ground and surface of drinking water resources in iranian city of arak were determined by gamma ray spectrometry with ahpge detector setup, coaxial p type and 8192 channels mca. the water samples differed in radioactivity content depending on their origin and place. in the drinking water samples from aman abad, mobarak abad, an...

Journal: :iranian journal of radiation research 0
a. islam department of environmental sciences, jahangirnagar university, savar, dhaka-1342, bangladesh a. begum health physics division, atomic energy centre, dhaka-1000, bangladesh s. yeasmin health physics division, atomic energy centre, dhaka-1000, bangladesh m.s. sultana department of environmental sciences, jahangirnagar university, savar, dhaka-1342, bangladesh

background: the aims of the study are to determine the radioactivity concentrations of 226ra, 238u, 232th and 40k in vegetables of a recently found high background radiation area of south-eastern part of bangladesh and to detect the radiological risks to human from intake of these vegetables. materials and method: 10 plant samples were collected randomly from different locations of the study ar...

B. Fouladi Dehaghi, J. Deris,

Background: Naturally occurring radioactivity is a root cause of human exposure to harmful radiation. The occupational exposure hazard due to natural radionuclides occurring in drilling wastes is especially important in this regard. In this study the concentration of radionuclides namely 232Th, 226Ra and 40K were assessed in soil samples that were taken from various oil drilling areas. Methodol...

Journal: :iranian journal of radiation research 0
s. murugesan department of physics, sathyabama university, chennai-600 119, tamilnadu, india s. mullainathan department of physics, a.v.c college of engineering, mayiladuthurai-608 002, tamilnadu, india v. ramasamy department of physics, annamalai university, annamalainagar-608 002, tamilnadu, india v. meenakshisundaram health and safety division, indira gandhi centre for atomic research, kalpakkam – 603102, tamilnadu, india

background: natural radiation is constantly present in the environment and is emitted from a variety of natural and artificial sources. it affects human body and environment. materials and methods: the activity concentrations of 238u, 232th and 40k have been determined by gamma ray spectrometer with an hpge detector in sediments of cauvery river, tamilnadu, india. results: the absorbed dose rat...

S. Mullainathan, S. Murugesan, V. Meenakshisundaram, V. Ramasamy,

Background: Natural radiation is constantly present in the environment and is emitted from a variety of natural and artificial sources. It affects human body and environment. Materials and Methods: The activity concentrations of 238U, 232Th and 40K have been determined by Gamma ray spectrometer with an HPGe detector in sediments of Cauvery River, Tamilnadu, India. Results: The absorbe...

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