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Calculation of time resolution of the J-PET tomograph using the Kernel Density Estimation

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arxiv 1706.00924 v2 pith:FXLECSEC submitted 2017-06-03 physics.ins-det physics.app-phphysics.med-ph

Calculation of time resolution of the J-PET tomograph using the Kernel Density Estimation

L. Raczy\'nski , W. Wi\'slicki , W.Krzemie\'n , P. Kowalski , D. Alfs , T. Bednarski , P. Bia{\l}as , C. Curceanu
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E. Czerwi\'nski K. Dulski A. Gajos B. G{\l}owacz M. Gorgol B. Hiesmayr B. Jasi\'nska D. Kami\'nska G. Korcyl T. Kozik N. Krawczyk E. Kubicz M. Mohammed M. Pawlik-Nied\'zwiecka S. Nied\'zwiecki M. Pa{\l}ka Z. Rudy O. Rundel N.G. Sharma M. Silarski J. Smyrski A. Strzelecki A. Wieczorek B. Zgardzi\'nska M. Zieli\'nski P. Moskal
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classification physics.ins-det physics.app-phphysics.med-ph
keywords j-petmethodtimebuiltdensityestimationkernelplastic
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In this paper we estimate the time resolution of the J-PET scanner built from plastic scintillators. We incorporate the method of signal processing using the Tikhonov regularization framework and the Kernel Density Estimation method. We obtain simple, closed-form analytical formulas for time resolutions. The proposed method is validated using signals registered by means of the single detection unit of the J-PET tomograph built out from 30 cm long plastic scintillator strip. It is shown that the experimental and theoretical results, obtained for the J-PET scanner equipped with vacuum tube photomultipliers, are consistent.

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