Abstract
The Jagiellonian Positron Emission Tomograph (J-PET) is the first PET built from plastic scintillators. J-PET prototype consists of 192 detection modules arranged axially in three layers forming a cylindrical diagnostic chamber with the inner diameter of 85 cm and the axial field-of-view of 50 cm. An axial arrangement of long strips of plastic scintillators, their small light attenuation, superior timing properties, and relative ease of the increase of the axial field-of-view opens promising perspectives for the cost effective construction of the whole-body PET scanner, as well as construction of MR and CT compatible PET inserts. Present status of the development of the J-PET tomograph will be presented and discussed.
Highlights
Positron emission tomography is a medical technique used mainly for cancer studies as well as control of radio- and chemo-therapies
In order to compare a performance of the crystal based PET tomographs and the Jagiellonian Positron Emission Tomograph (J-PET) built from strips of plastic scintillators we introduced a figure of merit (FOM) for the whole body imaging [10] by analogy to the figure of merits proposed earlier in [11, 12]
The whole body FOM is defined as a probability of detection of annihilation event divided by the Coincidence Resolving Time (CRT) and the number of bed positions
Summary
Positron emission tomography is a medical technique used mainly for cancer studies as well as control of radio- and chemo-therapies. The radiation dose needed for whole body scan can be reduced and usage of shorter living tracers will be simplified To address this problem several different designs of whole body scanners were introduced based on resistive plate chamber (RPCs) [5], straw tubes [6, 7] and crystal scintillators [4]. The J-PET group proposes the usage of plastic scintillators as detection material for positron emission tomography [8] This will allow a construction of cost effective whole-body scanner, due to less expensive detector material [8,9]. The whole body FOM is defined as a probability of detection of annihilation event divided by the Coincidence Resolving Time (CRT) and the number of bed positions Comparions of such introduced FOM for the J-.
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