Clemêncio, FilomenaLandeck, Jorge2022-03-092022-03-092015-11Clemêncio, F., & Landeck, J. (2015). Coincidence detection in PET. In R. A. Silva, P. Baylina, F. Q. Vieira, C. Barrias, M. Rubim, T. Coelho, C. Prudêncio, & Â. Jesus (Eds.), II Congresso Internacional da Saúde Gaia Porto: Livro de Resumos (1st ed., Vol. 1, pp. 131). Escola Superior de Tecnologia da Saúde do Instituto Politécnico do Porto.978-989-20-6340-9http://hdl.handle.net/10400.22/20182A complex task for PET cameras is the design of a coincidence detection system that allows for a very tight time window. This brings us necessarily to discussing the concept of coincidence in PET (including the concepts of single, prompt and multiple events in a PET chamber), the different options for coincidence sorting and the concept of Field of View (FOV). We present results from a coincidence system we implemented in a Xilinx Virtex-5 FPGA with coincidence time windows of the order of a few hundred picoseconds and capable of FOV selection and multiple coincidence rejection implemented in real-time.engconference object