Optimization of positronium imaging performance of a simulated modular J-PET scanner using GATE software

• Autorzy: Parzych Szymon

Identyfikatory

DOI

10.5604/01.3001.0054.1937

• Języki publikacji: EN

Abstrakty

EN

Recently, a novel PET imaging method - positronium imaging - has been proposed to take advantage of previously unused information about the positronium states. The first ex-vivo and in-vivo images of positronium characteristics were acquired with the J-PET tomograph. Complementary to the standard annihilation photon’s detection, positronium imaging also requires the registration of the prompt photon, which follows β+ decay. To that end, the introduction of an additional energy threshold for prompt γ registration and optimization of the energy window for annihilation γ are required. This simulation-based work undertook the mentioned task in the case of the modular J-PET scanner. Based on the ⁴⁴Sc radioisotope, the energy window for annihilation photons was established to 0.2 MeV - 0.37 MeV, while the threshold for prompt gamma was fixed at 0.37 MeV, closely following the end of the energy window for annihilation photons.

Słowa kluczowe

EN

positronium imaging; multiphoton PET imaging; J-PET; simulation; GATE; energy window; 44Sc

• Wydawca: Uniwersytet Jagielloński - Collegium Medicum ; Index Copernicus Sp. z o.o.
• Czasopismo: Bio-Algorithms and Med-Systems
• Rocznik: 2023
• Tom: Vol. 19, no. 1
• Strony: 80--86
• Opis fizyczny: Bibliogr. 39 poz., rys.

Twórcy

autor

Parzych Szymon

• M. Smoluchowski Institute of Physics, Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, Krakow, Poland
• Total-Body Jagiellonian-PET Laboratory, Jagiellonian University, Krakow, Poland
• Centre for Theranostics, Jagiellonian University, Krakow, Poland

• https://orcid.org/0000-0002-3049-2267

Bibliografia

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Uwagi

Opracowanie rekordu ze środków MEiN, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2022-2023).