Results 21 to 30 of about 91,621 (264)

Optimization of the gamma-ray spectrometry counting time based on uncertainties of radionuclides concentration in samples

Brazilian Journal of Radiation Sciences, 2020
This paper aims to propose an easy and fast method of optimization of the gamma-ray spectrometry counting time in determining natural radionuclides (Pb-210, Pb-212, Pb-214, Bi-212, Bi-214 and Ac-228) in order to minimize uncertainties in the ...
Marcelo Bessa Nisti, Marcelo Francis Máduar, Catia Heloisa Rosignoli Saueia, Fernanda Cavalcante, Barbara Paci Mazzilli   +4 more
doaj   +1 more source

Determination of Natural Radionuclides (Ra-226, Po-210, Ra-228 and K-40) and Cs-137 in Fish Consumed in the City of São Paulo

Brazilian Journal of Radiation Sciences, 2022
The aim of the study was to determine the activity concentration of the natural radionuclides (226Ra, 210Po, 228Ra and 40K) and artificial radionuclide 137Cs in the muscle of the marine fish species most consumed in the city of São Paulo and to evaluate ...
Andressa Nery, Barbara Paci Mazzilli, Marcelo Bessa Nisti, Catia Heloisa Rosignoli Saueia   +3 more
doaj   +1 more source

Gamma Spectrometry in the Presence of Fast Neutrons

Frontiers in Biomedical Technologies, 2019
Purpose: In some gamma spectroscopy experiments, neutrons may also be present, so depending on experimental conditions, Gamma spectroscopy can be influenced by the presence of neutrons.
Iran Hassanzadeh, Armin Allahverdy, Okhtay Jahanbakhsh, Alireza Khorrami Moghaddam   +3 more
doaj   +1 more source

Evaluation of radon, radium and gamma radiation at the environmental preservation area of Passaúna river, Brazil

Brazilian Journal of Radiation Sciences, 2021
The objective of this research was to evaluate the levels of natural radiation in the Environmental Protection Area (APA) of the Passaúna River (Campo Largo region) in the state of Paraná, Brazil. Gamma radiation measurements were obtained with the gamma
Aline Cristina Martin, Sergei Anatolyevich Paschuk, Janine Nicolosi Corrêa, Flávia Del Claro, Oderson Antônio de Souza Filho   +4 more
doaj   +1 more source

Fission studies by prompt gamma-ray spectrometry

EPJ Web of Conferences, 2015
The feasibility of retrieving accurate fission observables with a Ge-detector array around a fissile target placed in a cold neutron beam was tested. In three measurement campaigns performed at ILL with the EXILL setup, 235U and 241Pu targets were placed
Materna T., Letourneau A., Amouroux Ch., Marchix A., Litaize O., Sérot O., Regnier D., Blanc A., Jentschel M., Köster U., Mutti P., Soldner T., Simpson G., Leoni S., de France G., Urban W.   +15 more
doaj   +1 more source

CHARACTERIZATION OF RADIOACTIVE WASTE IN KOSOVO THROUGH GAMMA SPECTROMETRY [PDF]

European Journal of Materials Science and Engineering, 2019
Characterization of radioactive waste is a process first hand regarding the effectiveness and cost management. Before starting any type of radioactive waste action is necessary to determine the content of their activity, the type of radioisotope ...
Besire CENA
doaj   +1 more source

Optimization of FLUKA detector model for HPGe array

Radiation Protection and Environment, 2022
Monte Carlo codes, such as FLUKA, are widely used to optimize calibration of spectrometric systems. HPGe detector array (HDA) for lung monitoring was modeled in FLUKA code using available information about their geometry and optimized for efficiency ...
C S Charubala, V Santhanakrishnan, G Ganesh, M S Kulkarni   +3 more
doaj   +1 more source

SBUspect, a Software for Gamma Radiation Spectrometry [PDF]

مجله علوم و فنون هسته‌ای, 2014
Gamma ray spectroscopy has extensive applications in many problems of physics and in varieties of radiation applications, such as material analysis. The obtained spectrum from a Gamma emitting source, which is usually detected by Germanium or inorganic ...
Majid Shahriari, Shahriar Badiei, MohammadSadegh Naseri   +2 more
doaj  

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

Buildings
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, Vsevolod Yutsis, Rubén Alfonso López-Doncel, Claudia Araceli García-Solís, Alfredo Aguillón-Robles   +4 more
doaj   +1 more source

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

Brazilian 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, Iberê Souza Ribeiro Jr, Frederico Antonio Genezini   +2 more
doaj   +1 more source