Reconstruction of hit time and hit position of annihilation quanta in the J-PET detector using the Mahalanobis distance

• Autorzy: Sharma N. G. , Silarski M. , Bednarski T. , Białas P. , Czerwiński E. , Gajos A. , Gorgol M. , Jasińska B. , Kamińska D. , Kapłon Ł. , Korcyl G. , Kowalski P. , Kozik T. , Krzemień W. , Kubicz E. , Niedźwiecki S. , Pałka M. , Raczyński L. , Rudy Z. , Rundel O. , Słomski A. , Strzelecki A. , Wieczorek A. , Wiślicki W. , Zieliński M. , Zgardzińska B. , Moskal P.

Identyfikatory

DOI

10.1515/nuka-2015-0138

• Konferencja: Polish Seminar on Positron Annihilation (42 nd ; 29.06-01.07.2016 ; Lublin, Poland)
• Języki publikacji: EN

Abstrakty

EN

The J-PET detector being developed at the Jagiellonian University is a positron emission tomograph composed of the long strips of polymer scintillators. At the same time, it is a detector system that will be used for studies of the decays of positronium atoms. The shape of photomultiplier signals depends on the hit time and hit position of the gamma quantum. In order to take advantage of this fact, a dedicated sampling front-end electronics that enables to sample signals in voltage domain with the time precision of about 20 ps and novel reconstruction method based on the comparison of examined signal with the model signals stored in the library has been developed. As a measure of the similarity, we use the Mahalanobis distance. The achievable position and time resolution depend on the number and values of the threshold levels at which the signal is sampled. A reconstruction method as well as preliminary results are presented and discussed.

Słowa kluczowe

EN

J-PET detector; Mahalanobis distance; time resolution; threshold levels

• Wydawca: Institute of Nuclear Chemistry and Technology
• Czasopismo: Nukleonika
• Rocznik: 2015
• Tom: Vol. 60, No. 4, part 1
• Strony: 765--769
• Opis fizyczny: Bibliogr. 17 poz., rys.

Twórcy

autor

Sharma N. G.

• Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, 11 S. Łojasiewicza Str., 30-348, Kraków, Poland

autor

Silarski M.

• Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, 11 S. Łojasiewicza Str., 30-348, Kraków, Poland

autor

Bednarski T.

• Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, 11 S. Łojasiewicza Str., 30-348, Kraków, Poland

autor

Białas P.

• Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, 11 S. Łojasiewicza Str., 30-348, Kraków, Poland

autor

Czerwiński E.

• Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, 11 S. Łojasiewicza Str., 30-348, Kraków, Poland

autor

Gajos A.

• Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, 11 S. Łojasiewicza Str., 30-348, Kraków, Poland

autor

Gorgol M.

• Department of Nuclear Methods, Institute of Physics, Maria Curie-Sklodowska University, 1 M. Curie-Sklodowskiej Sq., 20-031, Lublin, Poland

autor

Jasińska B.

• Department of Nuclear Methods, Institute of Physics, Maria Curie-Sklodowska University, 1 M. Curie-Sklodowskiej Sq., 20-031, Lublin, Poland

autor

Kamińska D.

• Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, 11 S. Łojasiewicza Str., 30-348, Kraków, Poland

autor

Kapłon Ł.

• Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, 11 S. Łojasiewicza Str., 30-348, Kraków, Poland
• Institute of Metallurgy and Materials Science of the Polish Academy of Sciences, 25 W. Reymonta Str., 30-059, Kraków, Poland

autor

Korcyl G.

• Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, 11 S. Łojasiewicza Str., 30-348, Kraków, Poland

autor

Kowalski P.

• Department of Nuclear Methods, Institute of Physics, Maria Curie-Sklodowska University, 1 M. Curie-Sklodowskiej Sq., 20-031, Lublin, Poland

autor

Kozik T.

• Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, 11 S. Łojasiewicza Str., 30-348, Kraków, Poland

autor

Krzemień W.

• High Energy Physics Division, National Centre for Nuclear Research, 7 Andrzeja Soltana Str., 05-400 Otwock/Świerk, Poland

autor

Kubicz E.

• Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, 11 S. Łojasiewicza Str., 30-348, Kraków, Poland

autor

Niedźwiecki S.

• Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, 11 S. Łojasiewicza Str., 30-348, Kraków, Poland

autor

Pałka M.

• Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, 11 S. Łojasiewicza Str., 30-348, Kraków, Poland

autor

Raczyński L.

• Department of Nuclear Methods, Institute of Physics, Maria Curie-Sklodowska University, 1 M. Curie-Sklodowskiej Sq., 20-031, Lublin, Poland

autor

Rudy Z.

• Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, 11 S. Łojasiewicza Str., 30-348, Kraków, Poland

autor

Rundel O.

• Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, 11 S. Łojasiewicza Str., 30-348, Kraków, Poland

autor

Słomski A.

• Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, 11 S. Łojasiewicza Str., 30-348, Kraków, Poland

autor

Strzelecki A.

• Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, 11 S. Łojasiewicza Str., 30-348, Kraków, Poland

autor

Wieczorek A.

• Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, 11 S. Łojasiewicza Str., 30-348, Kraków, Poland
• Institute of Metallurgy and Materials Science of the Polish Academy of Sciences, 25 W. Reymonta Str., 30-059, Kraków, Poland

autor

Wiślicki W.

• Department of Nuclear Methods, Institute of Physics, Maria Curie-Sklodowska University, 1 M. Curie-Sklodowskiej Sq., 20-031, Lublin, Poland

autor

Zieliński M.

• Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, 11 S. Łojasiewicza Str., 30-348, Kraków, Poland

autor

Zgardzińska B.

• Department of Nuclear Methods, Institute of Physics, Maria Curie-Sklodowska University, 1 M. Curie-Sklodowskiej Sq., 20-031, Lublin, Poland

autor

Moskal P.

• Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, 11 S. Łojasiewicza Str., 30-348, Kraków, Poland

Bibliografia

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