Evaluation of Modular J-PET sensitivity

Tayefi Ardebili, Faranak; Niedźwiecki, Szymon; Moskal, Paweł

doi:10.5604/01.3001.0054.1973

Artykuł - szczegóły

Tytuł artykułu

Evaluation of Modular J-PET sensitivity

Autorzy

Tayefi Ardebili Faranak , Niedźwiecki Szymon , Moskal Paweł

Wybrane pełne teksty z tego czasopisma

Identyfikatory

DOI

10.5604/01.3001.0054.1973

Warianty tytułu

Języki publikacji

Abstrakty

The Modular J-PET represents the latest advancement in the Jagiellonian-PET series, utilizing extended plastic scintillator strips. This prototype's modular design enables cost-effective imaging of multi-photon annihilation and positronium, allowing for easy assembly, portability, and versatility. Additionally, its lightweight construction facilitates static bed examinations with a mobile detection system that can be positioned conveniently alongside the patient, negating the requirement for spacious clinical settings. Comprising 24 modules arranged in regular 24-sided polygons circumscribing a 73.9 cm diameter circle, each module integrates 13 scintillator strips, measuring 50 cm in length and 6 mm × 24 mm in cross-section. Scintillation light is captured at both ends through analog Silicon Photomultipliers (SiPMs). This research presents Sensitivity of the Modular J-PET tomograph, adhering to the NEMA_NU 2-2018 standards. Sensitivity measurement was performed with ⁶⁸Ge line source inside the 5 sleeves aluminium phantom placed at center of the detector`s field-of-view (FOV) and 10 cm offset from the center of detector. Analyzing the gathered data involved employing the specialized J-PET Framework software, developed within the C++ architecture. To validate the experimental findings, comparisons were made with GATE simulations, wherein the source and phantom were emulated in the same configuration as employed in the actual experiment. The system sensitivity of the Modular J-PET was assessed to be 1.03 ± 0.02 cps/kBq in the center of the detector`s FOV with the peak sensitivity of 2.1 cps/kBq. However, the simulations indicate that at the center of the detector's FOV, the Modular J-PET achieves a system sensitivity of 1.32 ± 0.03 cps/kBq, with a peak sensitivity of 2.9 cps/kBq.

Słowa kluczowe

positron emission tomography plastic scintillator sensitivity NEMA standards GATE J-PET medical imaging total-body PET

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

132--138

Opis fizyczny

Bibliogr. 43 poz., rys., tab.

Twórcy

autor

Tayefi Ardebili Faranak

Marian 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
Center for Theranostics, Jagiellonian University, Krakow, Poland

https://orcid.org/0000-0003-1490-1291

autor

Niedźwiecki Szymon

Marian 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
Center for Theranostics, Jagiellonian University, Krakow, Poland

https://orcid.org/0000-0002-5953-9479

autor

Moskal Paweł

Marian 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
Center for Theranostics, Jagiellonian University, Krakow, Poland

https://orcid.org/0000-0001-5644-5963

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).

Typ dokumentu

Bibliografia

Identyfikator YADDA

bwmeta1.element.baztech-b3fe5b3a-dcce-4f75-b586-3a753f474331