ISSN 1004-4140
CN 11-3017/P
WANG Yi, YANG Bo, WEI Qiang-lin, LIU Yi-bao. A Set Method Simulation of Lower Level Discriminator in Small Animal PET Based on GATE Toolkits[J]. CT Theory and Applications, 2010, 19(3): 25-32.
Citation: WANG Yi, YANG Bo, WEI Qiang-lin, LIU Yi-bao. A Set Method Simulation of Lower Level Discriminator in Small Animal PET Based on GATE Toolkits[J]. CT Theory and Applications, 2010, 19(3): 25-32.
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A Set Method Simulation of Lower Level Discriminator in Small Animal PET Based on GATE Toolkits

    Abstract
  • Scattered coincidences could be harmful to the quality of the image reconstruction.The lower level discriminator can decrease the proportion of scattered coincidence counts.This paper is to validate the effect of the lower level discriminator on the coincidence counts.GATE(geant4 application for tomographic emission) was used to find the best value of the lower level discriminator by modeling the Eplus-166 PET scanner developed by IHEP(Institute of High Energy Physics) in China.It is found that the value of the threshold should be set properly due to the size of the creature to be scanned.Compared with the experiment data,to simulate PET with GATE is practicable.
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