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| Format: | Artículo científico |
| Language: | en |
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Sociedade Brasileira de Proteção Radiológica - SBPR
2019
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| Online Access: | https://www.redalyc.org/articulo.oa?id=722280838061 |
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Table of Contents:
- Interpolation methods for creating a scatter radiation exposure map Elicardo Alves de Souza Goncalves Celio Simonacci Gomes Luis Fernando Oliveira Marcelino Jose Anjos Davi Ferreira Oliveira Ricardo Tadeu Lopes Biología Betatron Radiation Scattering Radiation Exposure Control A well known way to understand radiation scattering and radiation exposure ratings, in a procedure that makes use of ionizing radiation, is to map its exposure over the space around the source and the sample. This map is done by measuring exposure in points regularly spaced, that is, measurement will be done in places defined by regular steps, starting at a point and moving along the x, y and z axes or, in a more efficient way, using radial and angular coordinates. However, it is not always possible to maintain the steps’ accuracy throughout the entire space, or there would be regions of difficult access where the steps’ regularity would be compromised. In this work, we use a high energy radiation source to simulate a common radiography setup and construct its exposure map. The points’ arrangement and the interpolation were used considering polar coordinates. Then, with the same data, an interpolation using the Delaunay triangulation was made. The results show the advantages and disadvantages of each one, in addition to providing a high coherence to the data. To simulate the impossibility of regular points, the same procedures were performed in the absence of any point and compared. The results show a lower total variation when the map is calculated by triangulation. The computational and graphic treatment was performed with GNU OCTAVE software and its image processing package. The data were acquired from a bunker where a 6MeV betatron was used as a primary source. 2019 artículo científico 2319-0612 https://www.redalyc.org/articulo.oa?id=722280838061 en http://www.redalyc.org/revista.oa?id=7222 Brazilian Journal of Radiation Sciences application/pdf Sociedade Brasileira de Proteção Radiológica - SBPR Brazilian Journal of Radiation Sciences (Brasil) Num.2A Vol.7