[1M05-08] Photon Measurement 1

[1M06] Double photon Compton imaging with TOF capability

*ZHIHONG ZHONG¹, Kenji Shimazoe¹, Hiroyuki Takahashi¹ (1. Univ. of Tokyo)

Keywords:Radiation detection, Compton imaging

Compton imaging has been widely used in many areas in which locating source of photons is needed. However, the angular resolution of Compton imaging system has become a major drawback. We proposed the use of coincidence events, which comes from cascade decay of certain radioactive nuclide, to increase the spatial resolution of imaging system. We plan to use it in the 3D image reconstruction. The Time-of-flight (TOF) technique is applied to ensure a good image quality on the third direction. In the research, Geant4 simulation is performed to evaluate the scheme. The result shows that the TOF technique can greatly improve the image quality with straightforward and simple image reconstruction algorithm.