Metrology Repository

Browsing Metrologia das radiações ionizantes: Produção Científica by Title

Browsing Metrologia das radiações ionizantes: Produção Científica by Title

Sort by: Order: Results:

  • Quaresma, Daniel da Silva; Cardoso, Ricardo de Souza; Peixoto, José Guilherme Pereira (2015)
    The operational facility procedures in diagnostic radiology standardization and calibration, through the relation between the X ray tube current and the ionization chamber current in a radiation quality Q, shown the reference ...
  • Guimarães, Margarete Cristina; Silva, Claudete Roberta Evangelista Silva; Rosado, Paulo Henrique G.; Cunha, Paulo Gonçalves; Silva, Teogenes Augusto da (2017)
    Metrology laboratories are expected to maintain standardized radiation beams and traceable standard dosimeters to provide reliable calibrations or testing of detectors. Results of the characterization of an x-ray system ...
  • Feital, João Carlos da Silva; Delgado, José Ubiratan; Peixoto, José Guilherme Pereira; Lopes, Ricardo Tadeu (2015)
    Female breast is a radiosensitive organ and the main procedure to assess the carcinogenic risk associated the mammographic practices has been indicated by the mean glandular dose (MGD) measurements. However, this dosimetric ...
  • Albuquerque, Marcos Aurélio Gomes de; David, Mariano Gazineu; Almeida, Carlos Eduardo de; Bernal, Mario; Magalhães, Luis Alexandre Gonçalves; Braz, Delson (2015)
    O câncer de mama é o tipo de neoplasia mais freqüente entre mulheres. A principal técnica de detecção precoce do câncer de mama é a mamografia. Apesar do avanço da diminuição das mortes por câncer, existe a preocupação dos ...
  • Souza, Felipe Marques Lucas de; Gonçalves, Odair Dias; Batista, Delano Valdivino Santos; Coutinho, Simone Cardoso (2017)
    This study aims to analyze the eye’s movement during radiotherapy treatment for choroidal melanoma, as well as the methodology used in the repositioning of the patient between treatments sessions. For this purpose, the ...
  • Trindade Filho, Octavio Luiz; Conceição, Dayana Azeredo da; Oliveira, Antonio Eduardo de; Delgado, José Ubiratan; Iwahara, Akira; Silva, Carlos José da; Tauhata, Luiz (2017)
    Ionization chambers are used as secondary standard in order to maintain the calibration factors of radionuclides in the activity measurements in metrology laboratories. Used as radionuclide calibrator in nuclear medicine ...
  • Cruz, Paulo Alberto Lima da; Silva, Carlos José da; Iwahara, Akira; Loureiro, Jamir dos Santos; Oliveira, Antônio Eduardo de; Tauhata, Luiz; Lopes, Ricardo Tadeu (2015)
    In this work are presented TDCR and CIEMAT/NIST methods of liquid scintillation implemented in National Institutes of Metrology for activity standardization of radionuclides which decay by beta emission and electron capture. ...
  • Jordão, Bruno de Oliveira; Peixoto, José Guilherme Pereira; Quaresma, Daniel da Silva (2017)
    The area of metrology has taken a step forward with regard to the calculation of uncertainty. This mathematical tool used in laboratories is essential to ensure that the values resulting from a measurement are reliable. ...
  • Perini, Ana Paula; Mendonça, Dalila Souza Costa; Neves, Lucio Pereira; Santos, William de Souza; Caldas, Linda Viola Ehlin (2017)
    Câmaras de ionização são muito utilizadas para dosimetria de feixes de radiodiagnóstico. Neste trabalho uma câmara de ionização tipo lápis especial, com dimensões, configuração e materiais diferentes em relação às câmaras ...

Search DSpace


Advanced Search

Browse

My Account