【摘 要】
:
In the present study,the concentrations of 226Ra,232Th and 40K are measured in building material and soil samples collected from different locations of Una,Himachal Pradesh,India.The collected soil sa
【机 构】
:
Department of Physics,Dr. B.R.Ambedkar National Institute of Technology,Jalandhar,India
论文部分内容阅读
In the present study,the concentrations of 226Ra,232Th and 40K are measured in building material and soil samples collected from different locations of Una,Himachal Pradesh,India.The collected soil samples and building materials are analysed using NaI(T1) gamma ray spectrometry.The activity concentrations of the naturally occurring radionuclides 226Ra,232Th and 40K in the soil samples varies from 36.4 Bqkg-1 t0 51.9 Bqkg-1,9.3 Bqkg-1 to 26.1 Bqkg-1 and 1361.0 Bqkg-1 t0 1732.4 Bqkg-1,respectively but in building material it varies from 27.8 Bqkg-1 to 236.0 Bqkg.1,1.2 Bqkg-1 to 146.1 Bqkg-1 and 1059.6 Bqkg-1 to 1582.9 Bqkg-1,respectively.The radium equivalent activity,absorbed dose rate,annual effective dose and hazard index are also calculated for the assessment of radiological risk.The concentration of radionuclides depends upon the rock formation and chemical properties within the earth.The average radium equivalent activity from the soil samples and building material is 177.6 Bqkg-1 and 201.1 Bqkg-1.The concentration of 226Ra,232Th and 40K in the collected samples are higher than the world average concentrations 35 Bqkg-1,30Bqkg-1and 400 Bqkg-1,respectively.This study is important to generate a baseline data of radiation exposure in the area.
其他文献
In Morocco,the mining areas are located in places with low water potential,the mobilization of non-conventional resources,namely the reuse of treated wastewater,in washing phosphates,could meet the wa
The crown-ether based SR Resin is frequently used for the separation and determination of Pb-210 in aqueous samples,typically up-front to a measurement by liquid scintillation (LSC) or gas proportiona
Lack of knowledge about the position,the identification and the radiological characteristics of radioactive materials makes it a difficult work of processing these materials.Gamma-ray imaging techniqu
To satisfy the increasing number of directives referring to the control of radioactivity and radioprotection,numerous analytical methods and conditioning processes for radioactive waste have been deve
The level of natural radioactivity in some environmental samples such as water,sediment and shore samples from Qaroun lake - A1 Fayioum Governate,Egypt were measured.Concentrations of radionuclides in
Background: Recently the European Commission is recasting the Euratom Basic Safety Standards (BSS) in order to further limit the exposure of the public and workers to radioactivity.The new BSS provide
Alpha-and beta-activities per unit volume of air due to radon (222Rn),thoron (220Rn) and their decay products were measured in the air of various health centres situated in different districts of the
Palabora Mining Company is an Integrated Copper Mine,-Smelter and -Manufacturing unit situated in the Limpopo Province of South Africa.Copper concentrate,the life blood of the company,is classified as
Radon (222Rn) is a natural radioactive gas generated from the 226Ra alpha-decay.It is a noble gas with 3.82 days half-life and high water solubility.In the present study,radon,thoron (220Rn),and their
Environmental contamination due to radionuclide releases is a common phenomenon in uranium mining and milling areas.Disposal of uranium ore processing materials may result in soil contamination if ina