Estimation of the NEMA characteristics of the J-PET tomograph using the GATE package.

Estimation of the NEMA characteristics of the J-PET tomograph using the GATE package. Phys Med Biol. 2018 Jul 11;: Authors: Kowalski P, Wiślicki W, Shopa R, Raczyński L, Klimaszewski K, Curceanu C, Czerwiński E, Dulski K, Gajos A, Gorgol M, Sharma NG, Hiesmayr BC, Jasińska B, Kapłon Ł, Kamińska D, Korcyl G, Kozik T, Krzemień W, Kubicz E, Mohammed M, Niedzwiecki S, Pałka M, Pawlik-Niedźwiecka M, Raj J, Rakoczy K, Rudy Z, Sharma S, Shivani S, Silarski M, Skurzok M, Zgardzińska BK, Zielinski M, Moskal P Abstract The novel whole-body PET system based on plastic scintillators is developed by the J-PET Collaboration. It consists of plastic scintillator strips arranged axially in the form of a cylinder, opening perspective for the cost-effective construction of the total-body PET. In order to determine properties of the scanner prototype and optimize its geometry, advanced computer simulations using the GATE software were performed.
 
 The spatial resolution, the sensitivity, the scatter fraction and the noise equivalent count rate were estimated according to the NEMA norm as a function of the length of the tomograph, number of the detection layers, diameter of the tomographic chamber and for various types of the applied readout. For the single-layer geometry with the diameter of 85 cm, strip length of 100 cm, cross-section of 4 mm x 20 mm and silicon photomultipliers with the additional layer of wavelength shifte...
Source: Physics in Medicine and Biology - Category: Physics Authors: Tags: Phys Med Biol Source Type: research