Results 11 to 20 of about 32,744 (246)

Radiation dosimetry. [PDF]

open access: yesEnvironmental Health Perspectives, 1991
This article summarizes the basic facts about the measurement of ionizing radiation, usually referred to as radiation dosimetry. The article defines the common radiation quantities and units; gives typical levels of natural radiation and medical exposures; and describes the most important biological effects of radiation and the methods used to measure ...
openaire   +3 more sources

Knowledge management: the tool of the conceptual map in the evaluation of a seminar on safety and security

open access: yesBrazilian Journal of Radiation Sciences, 2020
Introduction It can be said that the population, in general, has already heard or even used equipment that involvesthe issue of Nuclear Energy. However, the majority of the population does not understand the effects generated by Nuclear Energy on living ...
Fernando Barcellos Razuck   +1 more
doaj   +1 more source

Development and calibration of a portable detection device for in vivo measurement of high-energy photon emitters incorporated by humans

open access: yesBrazilian Journal of Radiation Sciences, 2018
This work presents the evaluation of the applicability and sensitivity of a portable detection device specially designed for in vivo measurement of high-energy photon emitters in the human body.
Alexandre Barbosa Soares   +4 more
doaj   +1 more source

Application of deep neural networks to forecast 60Co soil to plant transfer factor values based in pedological parameters

open access: yesBrazilian Journal of Radiation Sciences, 2022
The soil-plant transfer factor (Fv) is used methods in the computational models for radiological risk assessment by ingestion of radiocobalt-contaminated food.
Lucas Iwahara   +3 more
doaj   +1 more source

Sum-peak method with two NaI(Tl) crystals: 68(Ge+Ga) standardization

open access: yesBrazilian Journal of Radiation Sciences, 2019
A 68(Ge+Ga) commercial solution has been standardized in LNMRI in Brazil, by sum-peak method, in which a 3”x3” NaI(Tl) gamma-ray detector is positioned at the top of a well-type 5”x5” NaI(Tl) gamma-ray detector, resulting in a set up approximately  4p ...
Estela Maria Oliveira   +7 more
doaj   +1 more source

Calibration of gamma cameras for the Evaluation of Accidental Intakes of high-energy photon emitting Radionuclides by humans based on Urine Samples

open access: yesBrazilian Journal of Radiation Sciences, 2018
The prompt response to emergency situations involving suspicion of intakes of radionuclides requires the use of simple and rapid methods of internal monitoring of the exposed individuals.
Ämilie Louize Degenhardt   +4 more
doaj   +1 more source

A fast method for the determination of 210Pb by LSC in liquid samples

open access: yesBrazilian Journal of Radiation Sciences, 2019
210Pb is a naturally occurring radionuclide, widely distributed on the earth´s surface and can be incorporated by humans through food chain or directly by ingestion or inhalation in situations of occupational or accidental exposures.
Camilla da Silva Sampaio Lucena   +2 more
doaj   +1 more source

ENVIRAD – A Database Integration for Environmental Samples Radiological Data

open access: yesBrazilian Journal of Radiation Sciences, 2020
With the increasing use of databases for environmental radiological monitoring in soils, food, water and sediments, among others, there is a demand for integrating this kind of information availability, aiming at a data management for greater ...
Sergio de Albuquerque Gonzalez   +5 more
doaj   +1 more source

Scientific knowledge management about Monte Carlo method: a bibliometric analysis on IRD Postgraduate Program in Radiation Protection and Dosimetry

open access: yesBrazilian Journal of Radiation Sciences, 2021
With technological advances in several research areas of science, it is becoming increasingly common to use computer programs to solve problems. Some of these programs are based on statistical analysis and simulation of reality, such as the Monte Carlo ...
FELIPE DO CARMO AMORIM   +2 more
doaj   +1 more source

Groundwater isotopic variations in a uranium mining site: subsidies for contamination studies

open access: yesBrazilian Journal of Radiation Sciences, 2017
The Caetité Experimental Basin (CEB), located in the semi-arid region of Northeastern Brazil, faces not only the challenges associated with water scarcity but also the potential contamination processes due to mining activity.
Valeska Peres de Araújo   +3 more
doaj   +1 more source

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