Nukleonika (Mar 2016)
Application of the compress sensing theory for improvement of the TOF resolution in a novel J-PET instrument
- Raczyński Lech,
- Moskal Paweł,
- Kowalski Paweł,
- Wiślicki Wojciech,
- Bednarski Tomasz,
- Białas Piotr,
- Czerwiński Eryk,
- Gajos Aleksander,
- Kapłon Łukasz,
- Kochanowski Andrzej,
- Korcyl Grzegorz,
- Kowal Jakub,
- Kozik Tomasz,
- Krzemień Wojciech,
- Kubicz Ewelina,
- Niedźwiecki Szymon,
- Pałka Marek,
- Rudy Zbigniew,
- Salabura Piotr,
- Gupta-Sharma Neha,
- Silarski Michał,
- Słomski Artur,
- Smyrski Jerzy,
- Strzelecki Adam,
- Wieczorek Anna,
- Zieliński Marcin,
- Zoń Natalia
Affiliations
- Raczyński Lech
- Świerk Computing Centre, National Centre for Nuclear Research, 7 Andrzeja Sołtana Str., 05-400 Otwock/Świerk, Poland
- Moskal Paweł
- Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, 11 S. Łojasiewicza Str., 30-348 Krakow, Poland
- Kowalski Paweł
- Świerk Computing Centre, National Centre for Nuclear Research, 7 Andrzeja Sołtana Str., 05-400 Otwock/Świerk, Poland
- Wiślicki Wojciech
- Świerk Computing Centre, National Centre for Nuclear Research, 7 Andrzeja Sołtana Str., 05-400 Otwock/Świerk, Poland
- Bednarski Tomasz
- Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, 11 S. Łojasiewicza Str., 30-348 Krakow, Poland
- Białas Piotr
- Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, 11 S. Łojasiewicza Str., 30-348 Krakow, Poland
- Czerwiński Eryk
- Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, 11 S. Łojasiewicza Str., 30-348 Krakow, Poland
- Gajos Aleksander
- Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, 11 S. Łojasiewicza Str., 30-348 Krakow, Poland
- Kapłon Łukasz
- Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, 11 S. Łojasiewicza Str., 30-348 Krakow, Poland and Institute of Metallurgy and Materials Science of the Polish Academy of Sciences, 25 W. Reymonta Str., 30-059 Krakow, Poland
- Kochanowski Andrzej
- Faculty of Chemistry, Jagiellonian University, 3 R. Ingardena Str., 30-059 Krakow, Poland
- Korcyl Grzegorz
- Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, 11 S. Łojasiewicza Str., 30-348 Krakow, Poland
- Kowal Jakub
- Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, 11 S. Łojasiewicza Str., 30-348 Krakow, Poland
- Kozik Tomasz
- Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, 11 S. Łojasiewicza Str., 30-348 Krakow, Poland
- Krzemień Wojciech
- Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, 11 S. Łojasiewicza Str., 30-348 Krakow, Poland
- Kubicz Ewelina
- Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, 11 S. Łojasiewicza Str., 30-348 Krakow, Poland
- Niedźwiecki Szymon
- Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, 11 S. Łojasiewicza Str., 30-348 Krakow, Poland
- Pałka Marek
- Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, 11 S. Łojasiewicza Str., 30-348 Krakow, Poland
- Rudy Zbigniew
- Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, 11 S. Łojasiewicza Str., 30-348 Krakow, Poland
- Salabura Piotr
- Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, 11 S. Łojasiewicza Str., 30-348 Krakow, Poland
- Gupta-Sharma Neha
- Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, 11 S. Łojasiewicza Str., 30-348 Krakow, Poland
- Silarski Michał
- Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, 11 S. Łojasiewicza Str., 30-348 Krakow, Poland
- Słomski Artur
- Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, 11 S. Łojasiewicza Str., 30-348 Krakow, Poland
- Smyrski Jerzy
- Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, 11 S. Łojasiewicza Str., 30-348 Krakow, Poland
- Strzelecki Adam
- Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, 11 S. Łojasiewicza Str., 30-348 Krakow, Poland
- Wieczorek Anna
- Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, 11 S. Łojasiewicza Str., 30-348 Krakow, Poland and Institute of Metallurgy and Materials Science of the Polish Academy of Sciences, 25 W. Reymonta Str., 30-059 Krakow, Poland
- Zieliński Marcin
- Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, 11 S. Łojasiewicza Str., 30-348 Krakow, Poland
- Zoń Natalia
- Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, 11 S. Łojasiewicza Str., 30-348 Krakow, Poland
- DOI
- https://doi.org/10.1515/nuka-2016-0012
- Journal volume & issue
-
Vol. 61,
no. 1
pp. 35 – 39
Abstract
Nowadays, in positron emission tomography (PET) systems, a time of flight (TOF) information is used to improve the image reconstruction process. In TOF-PET, fast detectors are able to measure the difference in the arrival time of the two gamma rays, with the precision enabling to shorten significantly a range along the line-of-response (LOR) where the annihilation occurred. In the new concept, called J-PET scanner, gamma rays are detected in plastic scintillators. In a single strip of J-PET system, time values are obtained by probing signals in the amplitude domain. Owing to compressive sensing (CS) theory, information about the shape and amplitude of the signals is recovered. In this paper, we demonstrate that based on the acquired signals parameters, a better signal normalization may be provided in order to improve the TOF resolution. The procedure was tested using large sample of data registered by a dedicated detection setup enabling sampling of signals with 50-ps intervals. Experimental setup provided irradiation of a chosen position in the plastic scintillator strip with annihilation gamma quanta.
Keywords
