Heuristic Method for Photo-detectors Localization over Continuous Crystal Scintillation Cameras

  • Ramiro G. Rodríguez Colmeiro GIAR, Universidad Tecnológica Nacional, Buenos Aires, Argentina
  • Claudio A. Verrastro GIAR, Universidad Tecnológica Nacional, Buenos Aires, Argentina
Keywords: Anger Camera, Genetic algorithms, PET tomography, Photomultiplier placement, Scintillation cameras

Abstract

The construction process of large scintillation cameras with continuous crystals is a complex problem affected by multiple variables, from the physical construction of the scintillation crystal to the dispersion in the sensibility of photomultiplier tubes. The selection of these variables have a strong impact on the final performance of the scintillation camera. A new method to select photomultiplier is presented in this paper, regarding its gain, making use of k-means clustering and genetic algorithms. The proposed algorithm was tested and applied in the construction of six scintillation cameras for the Argentinean positron emission tomogaph prototype (AR-PET), a problem with more than 10+600 possible configurations. The resulting configuration of the scintillation cameras reduced the software-freecalibration FWHM of the camera from 20% to 15% average.

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References

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Published
2018-04-25
How to Cite
Rodríguez Colmeiro, R. G., & Verrastro, C. A. (2018). Heuristic Method for Photo-detectors Localization over Continuous Crystal Scintillation Cameras. Journal of Computer Science and Technology, 18(01), e02. https://doi.org/10.24215/16666038.18.e02
Section
Original Articles