نتایج جستجو برای: gamma spectrometry

تعداد نتایج: 218801  

Journal: :Radiation protection dosimetry 2001
M Forte R Rusconi C Margini G Abbate S Maltese P Badalamenti S Bellinzona

The uranium concentration in 59 samples of bottled and tap water, mainly from northern Italy, was measured by different techniques. Results obtained by inductively coupled plasma mass spectrometry (ICP-MS), semiconductor alpha spectrometry and low level liquid scintillation counting with alpha/beta discrimination (LSC) have been compared. High resolution gamma spectrometry and semiconductor alp...

ژورنال: سنجش و ایمنی پرتو 2020

In this study, 34 soil samples were collected from the east of the Shazand power plant to the  Arak city, with a length of 25 km. The specific activities of radionuclides of 226Ra, 232Th, 40K, and 137Cs were determined using gamma-ray spectrometry method. Gamma-ray spectra registered to employ high purity germanium (HPGe) detector with 30% relative efficiency. Specific activities of correspondi...

Journal: :international journal of environmental research 0
i. guagliardi national research council of italy - institute for agricultural and forest systems in the mediterranean (isafom), via cavour 4/6 - 87036 rende (cs), italy g. buttafuoco national research council of italy - institute for agricultural and forest systems in the mediterranean (isafom), via cavour 4/6 - 87036 rende (cs), italy c. apollaro department of earth sciences, university of calabria, ponte bucci, 87036 rende (cs), italy a. bloise department of earth sciences, university of calabria, ponte bucci, 87036 rende (cs), italy r. de rosa department of earth sciences, university of calabria, ponte bucci, 87036 rende (cs), italy d. cicchella department of geological and environmental studies, university of sannio, via dei mulini, 59/a - 82100 benevento, italy

gamma-rays emitted from the ground surface relate to the primary mineralogy and geochemistryof the bedrock, and the secondary weathered materials. this information can contribute significantly to anunderstanding of the geochemical and pedogenetic history of a region. the main aim of this paper was to study the relationship between ground gamma-ray data and basement geochemistry in the lese catc...

A.A. Fathivand, J. Amidi, S. Hafezi,

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 th...

2005
HUANG Liu Xing ZHAO Jun NIU Sheng Li ZHU Jin Hui PENG Yu

The aerial measuring terrestrial gamma radiation from airborne platforms is a useful method for characterizing the radiation levels over large areas. Because of the advantage of Monte Carlo method, it is very suitable for simulation of gamma ray transport and interaction with media (soil, air, aircraft and detector), which offer alternative means of estimating detector response and calibration ...

ژورنال: سنجش و ایمنی پرتو 2018

The precise and timely manner modeling of received photon counts from gamma-ray sources has an important role in providing afore information for Airborne Gamma Ray Spectrometry (AGRS). In this manuscript, the Auto-Regressive Integrated Moving Average (ARIMA) model has been used to model AGRS. The proposed method provides gamma source and environmental disturbances ARIMA model, using known radio...

Journal: :Analytica chimica acta 2008
Xiaolin Hou Per Roos

The radiometric methods, alpha (alpha)-, beta (beta)-, gamma (gamma)-spectrometry, and mass spectrometric methods, inductively coupled plasma mass spectrometry, accelerator mass spectrometry, thermal ionization mass spectrometry, resonance ionization mass spectrometry, secondary ion mass spectrometry, and glow discharge mass spectrometry are reviewed for the determination of radionuclides. Thes...

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