Results 31 to 40 of about 2,175 (51)
Brazilian Journal of Radiation SciencesDue to the declaration of the Covid-19 pandemic by the World Health Organization in 2020, there was a significant increase in imaging exams to evaluate lung problems, these being the organs most affected by the disease. Given this demand, it is essential
Warley Ferreira Felix +3 more
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Analysis of the swelling kinetic in hydrogels gelled by radiation and by thermal cycling
Brazilian Journal of Radiation Sciences, 2021 Hydrogels are cross-linked polymer networks, which are of interest in biomedical applications such as drug delivery system. To achieve successful results in this kind of application it is essential to understand the diffusion mechanisms which are ...
Paola Andrea Bustamante +4 more
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Radiation-induced copper oxide formation in a clinical gel composite: a novel approach for dosimetry
Brazilian Journal of Radiation SciencesThis research is intended to investigate radiation-induced changes in a clinical gel composite with copper sulfate pentahydrate (CuSO₄·5H₂O). This study aimed to investigate the mechanisms was to understand the mechanisms of interaction between ...
Gabriela Pontes Cardoso +3 more
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Brazilian Journal of Radiation Sciences, 2021 Austenitic stainless steel alloys, mainly those produced according to ISO 5832-1, have received much attention due to their promising characteristics to be used as biomaterials.
Lilian Ninoska Muriel Braguin +3 more
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Brazilian Journal of Radiation SciencesIn vivo internal dosimetry can use a whole-body counter (WBC) to estimate radionuclides' incorporated activity (Bq) in internally contaminated individuals. The WBC must be calibrated to convert the count rate from the detector into activity incorporated
Hirys Sales, Ester Andrade, Bruno Mendes
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Total phenolic compounds of irradiated chia seeds
Brazilian Journal of Radiation Sciences, 2021 Chia seeds (Salvia hispanica L.) is a good source of oil, protein, dietary fiber, minerals and polyphenolic compounds. In order to study the influence of the processing methods on the content of phenolic compounds, the objective of this work was to ...
Gabriel Souza Chierentin +2 more
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Verification of absorbed dose in blood component cases using radiochromic film EBT3
Brazilian Journal of Radiation SciencesDosimetry of blood components is an essential practice to ensure the safety and efficacy of irradiation in blood products, serving as a fundamental measure to quantify and map the absorbed radiation doses.
Isabella Lellis Ferreira +7 more
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Preliminary chemical studies at the jericho archaeological site
Brazilian Journal of Radiation Sciences, 2021 This study measured the chemical composition of 45 ceramic samples from the Jericho archaeological site, Palestine, by means of instrumental neutron activation analysis (INAA). The mass fraction of Na, K, La, Sm, Yb, Lu, U, Sc, Cr, Fe, Co, Zn, Rb, Cs, Ce,
Joanna Ferreira Barros +2 more
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Response to nuclear and radiological emergencies - Brazil and the world
Brazilian Journal of Radiation SciencesSome nuclear and radiological accidents happened on last decades, providing to specialized personnel a huge change in terms of protocols and safety measures.
Madison Coelho de Almeida +3 more
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RADIOCHROMIC FILM CALIBRATION FOR DOSIMETRY IN CHEST CT SCANS
Brazilian Journal of Radiation Sciences, 2021 Phantoms can be used as quality control objects in computed tomography (CT) imaging and dosimetry in specific regions of interest. By means of phantom tests, alternatives can be created to optimize the acquisition protocols and thus modify the ...
Mauricio Gomez, Arnaldo Prata Mourão
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