ACTA

Hit Time and Hit Position Reconstruction in the J-PET Detector Based on a Library of Averaged Model Signals

P. Moskal^a, N.G. Sharma^a, M. Silarski^a, T. Bednarski^a, P. Białas^a, J. Bułka^b, E. Czerwiński^a, A. Gajos^a, D. Kamińska^a, L. Kapłon^a,c, A. Kochanowski^d, G. Korcyl^a, J. Kowal^a, P. Kowalski^e, T. Kozik^a, W. Krzemień^e, E. Kubicz^a, Sz. Niedźwiecki^a, M. Pałka^a, L. Raczyński^e, Z. Rudy^a, O. Rundel^a, P. Salabura^a, A. Słomski^a, J. Smyrski^a, A. Strzelecki^a, A. Wieczorek^a,c, W. Wiślicki^e, I. Wochlik^b, M. Zieliński^a and N. Zoń^a
^aFaculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, 30-348 Kraków, Poland
^bDepartment of Automatics and Bioengineering AGH, Krakow, Poland
^cInstitute of Metallurgy and Materials Science of Polish Academy of Sciences, 30-059 Kraków, Poland
^dFaculty of Chemistry, Jagiellonian University, 30-060 Kraków, Poland
^eŚwierk Computing Centre, National Centre for Nuclear Research, 05-400 Otwock-Świerk, Poland

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In this article we present a novel method of hit time and hit position reconstruction in long scintillator detectors. We take advantage of the fact that for this kind of detectors amplitude and shape of registered signals depend strongly on the position where particle hits the detector. The reconstruction is based on determination of the degree of similarity between measured and averaged signals stored in a library for a set of well-defined positions along the scintillator. Preliminary results of validation of the introduced method with experimental data obtained by means of the double strip prototype of the J-PET detector are presented.

DOI: 10.12693/APhysPolA.127.1495
PACS numbers: 87.57.uk, 07.05.Kf