نتایج جستجو برای: 226 ra and 228 ra

تعداد نتایج: 16833145  

Journal: :iranian journal of radiation research 0
m. asefi iranian nuclear regulatory authority (inra), national radiation protection department (nrpd), tehran, iran a.a. fathivand iranian nuclear regulatory authority (inra), national radiation protection department (nrpd), tehran, iran j. amidi iranian nuclear regulatory authority (inra), national radiation protection department (nrpd), tehran, iran

abstractbackground: 226 ra and 228 ra contents in foodstuffs of ramsar which is a coastal city in the northern part of iran were determined by gamma spectrometry. measurement results together with food consumption rates were used to estimate annual effective dose from  226 ra and 228 ra, due to consumption of food stuffs by inhabitants of ramsar city.materials and methods: a total of 33 samples...

A.A. Fathivand, J. Amidi, M. Asefi,

 ABSTRACTBackground: 226 Ra and 228 Ra contents in foodstuffs of Ramsar which is a coastal city in the northern part of Iran were determined by gamma spectrometry. Measurement results together with food consumption rates were used to estimate annual effective dose from  226 Ra and 228 Ra, due to consumption of food stuffs by inhabitants of Ramsar city.Materials and Methods: A total of 33 sample...

2016
S. Harb

The aim of this work, to estimate the External exposure, ingestion Exposure and inhalation exposure dose rate from gamma ray released from Natural Radionuclides in cultivated, uncultivated and phosphate soil samples in the area surrounding EL-Naser Factory for phosphate in El-Mahamid, Idfu, Aswan, Upper Egyp by using modeling, this model studied the exposure gamma radiation from different natur...

Journal: :Environmental science & technology 2015
Nancy E Lauer James C Hower Heileen Hsu-Kim Ross K Taggart Avner Vengosh

The distribution and enrichment of naturally occurring radioactive materials (NORM) in coal combustion residuals (CCRs) from different coal source basins have not been fully characterized in the United States. Here we provide a systematic analysis of the occurrence of NORM ((232)Th, (228)Ra, (238)U, (226)Ra, and (210)Pb) in coals and associated CCRs from the Illinois, Appalachian, and Powder Ri...

Journal: :iranian journal of radiation research 0
a.a. fathivand iranian nuclear regulatory authority (inra), national radiation protection department (nrpd), tehran, iran j. amidi iranian nuclear regulatory authority (inra), national radiation protection department (nrpd), tehran, iran g.h. heravi iranian nuclear regulatory authority (inra), national radiation protection department (nrpd), tehran, iran

background: two of the important radionuclides which are entered to environment and human diet are radium-226 (226ra) and cesium-137 (137cs). it is clear that the methods for preparation of foods such as peeling, washing, cooking or frying can affect the dose which is received by human due the to consumption of foodstuffs. an experiment has been performed at the environmental monitoring section...

A. Amidi, A. Najafi, A.A. Fathivand, M. Asefi,

  ABSTRACTBackground : The presence of primordial radionuclide in human habitats has always been a source of prolonged exposure. Measurement of naturally occurring radionuclides in the environment can be used as baseline to evaluate the impact of non-nuclear activities and also routine releases from nuclear installations.   Materials and methods: A total of 56 samples from 18 different foodstuf...

Journal: :Chemosphere 2015
G Xhixha M Baldoncini I Callegari T Colonna F Hasani F Mantovani F Shala V Strati M Xhixha Kaçeli

The Naturally Occurring Radioactive Materials (NORMs) that are potentially generated from oil and gas extractions in Albania have been disposed of without regulations for many decades, and therefore, an extensive survey in one of the most productive regions (Vlora-Elbasan) was performed. A total of 52 gamma ray spectrometry measurements of soil, oil-sand, sludge, produced water and crude oil sa...

Journal: :iranian journal of radiation research 0
m. asefi a.a. fathivand iranian nuclear regulatory authority, national radiation protection department, tehran, iran a. amidi a. najafi

abstractbackground : the presence of primordial radionuclide in human habitats has always been a source of prolonged exposure. measurement of naturally occurring radionuclides in the environment can be used as baseline to evaluate the impact of non-nuclear activities and also routine releases from nuclear installations.   materials and methods: a total of 56 samples from 18 different foodstuff ...

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