Results 21 to 30 of about 60,881 (309)

Quantification of uranium-238 in environmental samples using gamma-ray spectrometry

open access: yesEPJ Web of Conferences, 2012
A large number of environmental samples are routinely measured world-wide using gamma-ray spectrometry some of its assets being easy sample preparation and comprehensive data for many radionu-clides in one analysis.
Yeltepe E.   +4 more
doaj   +1 more source

Recovery and reanalysis of archived airborne gamma spectrometry data from the 1991 Dounreay survey [PDF]

open access: yes, 2012
Archived Airborne Gamma Spectrometry (AGS) data from the 1991 NIREX characterisations of Caithness have been recovered. The separate gamma spectrometry and positional data streams for approximately 120000 measurements have been combined into a single ...
Cresswell, A., A.J. Cresswell
core   +1 more source

Characteristics of Natural Background Radiation in the GIG Experimental Mine ‘Barbara’, Poland

open access: yesEnergies, 2022
Underground locations can be used in various ways for scientific and economic purposes. One of the main factors influencing the safety level in the underground mine workings is natural radioactivity.
Agata Walencik-Łata   +12 more
doaj   +1 more source

Pile-up correction for coincidence counting using a CAEN 1724 digitizer

open access: yesBrazilian Journal of Radiation Sciences, 2019
In conventional gamma-ray spectrometry, the probability of pile-up effects is considered to be proportional to the dead-time, and is usually neglected for low dead-times (below 4-5%).
Guilherme Soares Zahn   +2 more
doaj   +1 more source

Non-destructive technique to verify clearance of pipes [PDF]

open access: yesNuclear Technology and Radiation Protection, 2010
A semi-empirical, non-destructive technique to evaluate the activity of gamma ray emitters in contaminated pipes is discussed. The technique is based on in-situ measurements by a portable NaI gamma ray spectrometer.
Savidou Anastasia, Stamatelatos Ion E.
doaj   +1 more source

Insights into Gamma-Ray Spectrometry of Building Stones in the North Temple of the Great Ball Court, Archaeological Zone of Chichen Itza, Mexico

open access: yesBuildings
Non-destructive tests are especially useful for the assessment of building stones and their deterioration in built cultural heritage. Gamma-ray spectrometry is a non-destructive test that has not been applied extensively in these types of constructions ...
Alejandro Méndez-Gaona   +4 more
doaj   +1 more source

Assessment of 137Cs in the Environment of Hetauda City, Nepal by In-Situ Gamma Ray Spectrometry

open access: yesAtom Indonesia, 2023
A significant amount of 137Cs radioactive fallout have been spread in the atmosphere due to nuclear weapon testing and nuclear reactor disasters. This fallout eventually settles on the Earth's surface, and because 137Cs has a long half-life, it remains ...
A. Mishra, R. Khanal
doaj   +1 more source

Quantitative chemical analysis of pickling solutions by x-ray fluorescence spectrometry [PDF]

open access: yes, 2019
A quantitative analytical method of chlorine and iron in hydrochloric pickling solutions by x-ray spectrometry in atmospheric He mode is proposed. This work is concerned with the replacement of the wet chemical analyses of pickling solutions with rapid ...
Na, HG, Min, DJ, Jung, SM, Cho, YM
core   +1 more source

Online spectral unmixing in gamma-ray spectrometry

open access: yesApplied Radiation and Isotopes, 2023
We introduced in a previous paper a time-dependent full-spectrum analysis algorithm speeding up the estimation of the activity of the radionuclides present in a sample. In this paper, we present a new version of the algorithm allowing online estimation.
Malfrait, Paul   +2 more
openaire   +3 more sources

Source and LVis based coincidence summing correction in HPGe gamma-ray spectrometry

open access: yesNuclear Engineering and Technology, 2022
The activity of gamma-ray emitting nuclides is calculated assuming that each gamma-ray is detected individually; thus, the magnitude of the coincidence summing signal must be considered during activity calculations.
Jieun Lee   +6 more
doaj   +1 more source

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