نتایج جستجو برای: gamma ray spectrometry radionuclides

تعداد نتایج: 499051  

Journal: :iranian journal of radiation research 0
a.t. al-kinani supreme council for environment and natural reserves, doha, qatar, a.s. al-saidi s. al-anni

abstract   background : the application of du emanation for first time contaminated certain areas in the south west region of iraq after the second gulf war (1991). these contaminated areas were discovered in 1994. radioactive contamination was detected using the nuclear enterprise pcm5/1 in soil samples collected from two regions near by grazing lands. this study was done for assessment of du ...

2014
M. Mehade Hasan M. I. Ali D. Paul M. A. Haydar S. M. A. Islam

The activity concentrations of naturally occurring radionuclides Ra, Th and K in soil and water samples collected from Barapukuria 2×125 MW Coal Fired Thermal Power Plant area situated in Dinajpur district of Bangladesh were measured using gamma ray spectrometry technique. Two types of soil samples namely, active and passive soil samples and both surface and underground water samples were analy...

Journal: :Minerals 2022

The radioactivity associated with artisanal and small-scale gold mining activities (ASM) carried out along the Ulindi River, in eastern Democratic Republic of Congo, was evaluated by gamma-ray spectrometry inductively coupled plasma–mass soil sediment samples. results revealed that activity concentrations 238U (up to 3127 ± 98 Bq kg?1), 226Ra 2710 89 kg?1) 232Th 2142 162 were 71- 89-fold higher...

Journal: :IEEE Transactions on Nuclear Science 2021

Gamma spectrometry is a passive nondestructive assay method used to quantify radionuclides present in nuclear objects. Basic methods using empirical calibration with standard the activity of materials by determining coefficient are ineffective on nonreproducible objects such as waste packages. Package specifications composition or geometry change from one package another and exhibit large varia...

M. Mohebian, R. Pourimani,

Background: One of the main sources of exposure to radiation is terrestrial radionuclides in the environment. These radioisotopes are present in the Earthchr('39')s crust and can be increased by human activity such as mining of coal, oil, and minerals. Materials and Methods: In this study, 39 soil samples including virgin and cultivated were collected from around of the Shazand Refinery Complex...

Journal: :Journal of radiological protection : official journal of the Society for Radiological Protection 2011
Felix Samuel Olise Oyediran Kayode Owoade Hezekiah Bamidele Olaniyi

This paper reports an assessment of the level of the radionuclides (40)K, (232)Th and (238)U in environmental soil samples (process waste), and hence their calculated dose rates. For this purpose, the radioactivity from three natural radionuclides was determined in tin process-waste samples in Jos, Nigeria. This work is based on the particle induced x-ray emission (PIXE) approach, devoid of the...

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