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Heuristic Method for Photo-detectors Localization over Continuous Crystal Scintillation Cameras
DOI:
https://doi.org/10.24215/16666038.18.e02Keywords:
Anger Camera, Genetic algorithms, PET tomography, Photomultiplier placement, Scintillation camerasAbstract
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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[8] H. Li, Y. Liu, T. Xing, Y. Wang, J. Uribe, H. Baghaei, S. Xie, S. Kim, R. Ramirez, and W.-H. Wong, “An instantaneous photomultiplier gain calibration method for pet or gamma camera detectors using an led network,” in Nuclear Science Symposium Conference Record, 2003 IEEE, vol. 4, pp. 2447–2451, IEEE, 2003.
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[12] “http:www.detectors.saint-gobain.com.” Accesed on 2017-11-23.
[13] S. Lloyd, “Least squares quantization in pcm,” IEEE transactions on information theory, vol. 28, no. 2, pp. 129–137, 1982.
[14] R. O. Duda, P. E. Hart, and D. G. Stork, Pattern Classification (2Nd Edition). Wiley-Interscience, 2000.
[15] C. A. Verrastro, M. L. Cabrejas, D. Estryk, E. Venialgo, S. Marinsek, M. Belzunce, J. Zalcman, L. M. Giuliodori, R. Barneda, F. Carmona, D. D. Biase, M. Dalletesse, S. Villalba, C. Pulitze, F. Dufort, A. Cervantes, and J. Camenforte, “Ar-pet: Primer tomógrafo por emisión de positrones argentino,” in IXXXV Reunión Anual de la Asociación Argentina de Tecnología Nuclear (AATN), 2008.
[16] E. Venialgo, C. Verrastro, D. Estryk, and M. Belzunce, “M´etodo de calibración para cámara gamma y pet con una medición única de campo inundado,” XIII reunión de Trabajo en Procesamiento de la Información y Control, pp. 1010–1015, 2009.
[2] Saint-Gobain Ceramics & Plastics, “Nai(tl) and polyscin nai(tl) sodium iodide,” 2005.
[3] HAMAMATSU PHOTONICS K.K, “Photomultiplier tubes,” 2007.
[4] Y. Liu, H. Li, Y. Wang, T. Xing, S. Xie, J. Uribe, H. Baghaei, R. Ramirez, S. Kim, and W.-H. Wong, “A gain-programmable transit-time-stable and temperature-stable pmt voltage divider,” in Nuclear Science Symposium Conference Record, 2003 IEEE, vol. 5, pp. 3101–3104, IEEE, 2003.
[5] G. Knoll and M. Schrader, “Computer correction of camera nonidealities in gamma ray imaging,” IEEE Transactions on Nuclear Science, vol. 29, no. 4, pp. 1271–1279, 1982.
[6] Y.Wang,W.-H.Wong, M. Aykac, J. Uribe, H. Li, H. Baghaei, Y. Liu, and T. Xing, “An iterative energy-centroid method for recalibration of pmt gain in pet or gamma camera,” in Nuclear Science Symposium Conference Record, 2001 IEEE, vol. 4, pp. 1965–1968, IEEE, 2001.
[7] H. Li, W.-H. Wong, Y. Wang, Y. Liu, T. Xing, J. Uribe, H. Baghaei, and R. Farrell, “Frontend electronics based on high-yield-pileup-eventrecovery method for a high resolution pet camera with pmt-quadrant-sharing detector modules,” in Nuclear Science Symposium Conference Record, 2002 IEEE, vol. 2, pp. 699–703, IEEE, 2002.
[8] H. Li, Y. Liu, T. Xing, Y. Wang, J. Uribe, H. Baghaei, S. Xie, S. Kim, R. Ramirez, and W.-H. Wong, “An instantaneous photomultiplier gain calibration method for pet or gamma camera detectors using an led network,” in Nuclear Science Symposium Conference Record, 2003 IEEE, vol. 4, pp. 2447–2451, IEEE, 2003.
[9] E. Stoub, “Method and circuit for stabilizing conversion gain of radiation detectors of a radiation detection system,” Apr. 15 1986. US Patent 4,583,187.
[10] T. E. Peterson and L. R. Furenlid, “Spect detectors: the anger camera and beyond,” Physics in medicine and biology, vol. 56, no. 17, p. R145, 2011.
[11] “Gate.” Available at: http://www.opengatecollaboration.org. Accessed on 2017-02-14.
[12] “http:www.detectors.saint-gobain.com.” Accesed on 2017-11-23.
[13] S. Lloyd, “Least squares quantization in pcm,” IEEE transactions on information theory, vol. 28, no. 2, pp. 129–137, 1982.
[14] R. O. Duda, P. E. Hart, and D. G. Stork, Pattern Classification (2Nd Edition). Wiley-Interscience, 2000.
[15] C. A. Verrastro, M. L. Cabrejas, D. Estryk, E. Venialgo, S. Marinsek, M. Belzunce, J. Zalcman, L. M. Giuliodori, R. Barneda, F. Carmona, D. D. Biase, M. Dalletesse, S. Villalba, C. Pulitze, F. Dufort, A. Cervantes, and J. Camenforte, “Ar-pet: Primer tomógrafo por emisión de positrones argentino,” in IXXXV Reunión Anual de la Asociación Argentina de Tecnología Nuclear (AATN), 2008.
[16] E. Venialgo, C. Verrastro, D. Estryk, and M. Belzunce, “M´etodo de calibración para cámara gamma y pet con una medición única de campo inundado,” XIII reunión de Trabajo en Procesamiento de la Información y Control, pp. 1010–1015, 2009.
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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
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