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- W2079630347 abstract "Here we demonstrate a parametric positioning method on a continuous crystal detector. Three different models for the light distribution were tested. Diagnosis of the residues showed that the parametric model fits the experimental data better than Gaussian and Cauchy models in our particular experimental setup. Based on the correlation between the spread and the peak value of the light distribution model with the depth of interaction (DOI), we were able to estimate the three-dimensional position of a scintillation event. On our continuous miniature crystal element (cMiCE) detector module with 8 mm thick LYSO crystal, the intrinsic spatial resolution is 1.06 mm at the center and 1.27 mm at the corner using a maximum-likelihood estimation (MLE) method and the parametric model. The DOI resolution (full width at half maximum) is estimated to be approximately 3.24 mm. The positioning method using the parametric model outperformed the Gaussian and Cauchy models, in both MLE and weighted least-squares (WLS) fitting methods. The key feature of this technique is that it requires very little calibration of the detector, but still retains high resolution and high sensitivity." @default.
- W2079630347 created "2016-06-24" @default.
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- W2079630347 date "2008-03-10" @default.
- W2079630347 modified "2023-10-14" @default.
- W2079630347 title "Parametric positioning of a continuous crystal PET detector with depth of interaction decoding" @default.
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- W2079630347 doi "https://doi.org/10.1088/0031-9155/53/7/003" @default.
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