Zobrazeno 1 - 7
of 7
pro vyhledávání: '"Marcelo Francis Maduar"'
Autor:
Marcelo Bessa Nisti, Marcelo Francis Máduar, Sandra Regina Damatto, Marcos Medrado de Alencar
Publikováno v:
Brazilian Journal of Radiation Sciences, Vol 10, Iss 3B (2022)
The aim of this study is to determine an easy and fast method to calculate efficiencies in different volumes, in the same counting geometry, for gamma-ray spectrometry technique. Reference Material Soil IAEA 326 was packed in a 100 mL capacity polyet
Externí odkaz:
https://doaj.org/article/c96240d01d5846018fa7bb16ad4bf1c2
Autor:
Marcelo Bessa Nisti, Marcelo Francis Máduar, Catia Heloisa Rosignoli Saueia, Fernanda Cavalcante, Barbara Paci Mazzilli
Publikováno v:
Brazilian Journal of Radiation Sciences, Vol 8, Iss 2 (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 concentr
Externí odkaz:
https://doaj.org/article/445e0cab88d44cf6ab1e43895fa4f48f
Autor:
Barbara Paci Mazzilli, Marcia Pires Campos, Marcelo Bessa Nisti, Cátia Heloisa Rosignoli Saueia, Marcelo Francis Máduar
Publikováno v:
Brazilian Journal of Radiation Sciences, Vol 8, Iss 1 (2020)
Phosphogypsum, a waste byproduct derived from the production of phosphoric acid, is being worldwide stockpiled, posing concerns about the environmental problems originating from this practice. Considerations about the viability of the safe reuse of t
Externí odkaz:
https://doaj.org/article/f39d98a949514352aeb842b744a4b7e2
Publikováno v:
Brazilian Journal of Radiation Sciences, Vol 7, Iss 3 (2019)
Phosphogypsum (PG), a by-product from the phosphoric acid industry, is being worldwide stockpiled, posing environmental problems. Viability of the PG safe re-use in civil construction has been studied, as PG can contain natural radionuclides in signi
Externí odkaz:
https://doaj.org/article/ce8c2bd792024db18edd7970ca119b16
Autor:
Marcelo Francis Maduar, Goro Hiromoto
Publikováno v:
Radiation Protection Dosimetry. 111:221-228
The use of materials containing naturally occurring radionuclides for house construction may enhance the natural radiation background to which some population groups are exposed. External exposure results from gamma emitter radionuclides existing in
Publikováno v:
Radiation Protection Dosimetry. :ncv476
A calculation model for determining the indoor dose due to building materials with significant concentration of radioactivity has been applied to the case study of ceramic tiles; the model allows the contribution of bearing walls and wall covering ma
Autor:
Marcelo Francis Máduar
Publikováno v:
Biblioteca Digital de Teses e Dissertações da USPUniversidade de São PauloUSP.
A quantificação da atividade de radionuclídeos emissores de raios gama em amostras medidas por espectrometria gama com detectores HPGe depende da análise dos fotopicos presentes no espectro, especialmente da determinação exata das suas áreas l