Characterization of a Commercial PIN Diode for Stereotactic Radiosurgery Dosimetry

Autores/as

  • Matheus Fernando dos santos Universidade Federal de Pernambuco image/svg+xml https://orcid.org/0000-0003-0477-249X (no autenticado)
    • Charles Nilton Do Prado Oliveira UFPE ,
      • Karen Pieri Bueno ,
        • Lucas Delbem Albino ,
          • Thiago Schmeling Fontana ,
            • Wlademir Carvalho Vasconcelos Filho ,
              • Jose Geneci da Costa Calado ,
                • Ernesto Henrique Roesler ,
                  • Vinicius Saito Monteiro de Barros ,
                    • Helen Jamil Khoury ,

                      DOI:

                      https://doi.org/10.15392/bjrs.v10i2A.1827

                      Palabras clave:

                      diode, small fields, dosimetry, circular cones. radiosurgery

                      Resumen

                      The stereotactic radiosurgery (SRS) is a technique that uses multiple beams extremely collimated of ionizing
                      radiation to treat intracranial lesions and functional abnormalities, with high geometric precision and dosimetric
                      accuracy. The use of small fields is already a reality in modern radiotherapy techniques. However, the accuracy
                      in small-field dosimetry is challenging because of several process physics and aspects related to the detector. The
                      aim of this paper is to evaluate the response of a dosimetric system developed by Nuclear Energy Department of
                      Federal University of Pernambuco (DEN/UFPE) for small field dosimetry. Measurements of, output factor (OF),
                      off-axis ratio (OAR) and percentage depth dose (PDP) were performed with this dosimetric system and
                      compared with the results obtained with a commercial diode and treatment planning system data. The results
                      showed that the Diode-DEN presents a reliable and economical alternative for small fields dosimetry used in
                      treatments of SRS. This detector can be used for validation of dates obtained in commissioning of linear
                      accelerator and inserted in Treatment Planning Systems (TPS).

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                      Biografía del autor/a

                      • Matheus Fernando dos santos, Universidade Federal de Pernambuco
                        physics

                      Referencias

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                      KUMAR et al. Dosimetric Characteristics of a PIN Diode for Radiotherapy Application.

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                      beam dose calculation of treatment planning systems. Radiotherapy and Oncology. V. 60, p.

                      -201, 2001.

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                      Publicado

                      2022-07-21

                      Número

                      Vol. 10 Núm. 2A (Suppl.) (2022): LASSD

                      Sección

                      Articles

                      Categorías

                      Licencia

                      Derechos de autor 2022 Brazilian Journal of Radiation Sciences (BJRS)

                      Creative Commons License

                      Esta obra está bajo una licencia internacional Creative Commons Atribución 4.0.

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