Multiple scattering and accidental coincidences in the J-PET detector simulated using GATE package

Novel Positron Emission Tomography system, based on plastic scintillators, is developed by the J-PET collaboration. In order to optimize geometrical configuration of built device, advanced computer simulations are performed. Detailed study is presented of background given by accidental coincidences and multiple scattering of gamma quanta

Development of a database module in the analysis framework for the J-PET detector

The J-PET project aims to construct the prototype of a tomography scanner based on an innovative concept using polymers instead of inorganic scintillators as detection modules along with the development of the whole software architecture necessary for efficient data processing and image reconstruction.One of its important elements is the analysis framework, which provides the environment for the implementation of different calibrations and low-level reconstruction procedures and algorithms. During the data processing the parameters describing the measurement conditions, necessary for the image reconstruction must be provided. This information is stored in the PostgreSQL database.The aim of this work was to create a connector module between the database and the analysis framework. The connector handles the whole communication process with the database, and provides necessary information for analysis and reconstruction modules in form of collections of parametric objects.The analysis framework has been extended by adding special input/output modules which handle the management of the object parameters.The J-PET project aims to construct the prototype of a tomography scanner based on an innovative concept using polymers instead of inorganic scintillators as detection modules along with the development of the whole software architecture necessary for efficient data processing and image reconstruction.One of its important elements is the analysis framework, which provides the environment for the implementation of different calibrations and low-level reconstruction procedures and algorithms. During the data processing the parameters describing the measurement conditions, necessary for the image reconstruction must be provided. This information is stored in the PostgreSQL database.The aim of this work was to create a connector module between the database and the analysis framework. The connector handles the whole communication process with the database, and provides necessary information for analysis and reconstruction modules in form of collections of parametric objects.The analysis framework has been extended by adding special input/output modules which handle the management of the object parameters