A Common Approach to Image Reconstruction for Different Applications of Compton Cameras


A Common Approach to Image Reconstruction for Different Applications of Compton Cameras

Schöne, S.; Shakirin, G.; Kormoll, T.; Herbach, C.-M.; Pausch, G.; Enghardt, W.

Compton camera imaging is a promising technique for the measuring of high energetic gamma rays. Potential applications of Compton cameras are homeland security and medical imaging.
Up to now the only method for the monitoring of ion radiation therapy is positron emission tomography (PET). The main disadvantage of the PET technique is the distortion of the measured β+-activity by metabolism and blood flow due to a half-live of up to 20 min for the therapy relevant positron emitters. This problem can be overcome by measuring the prompt photons of wide energies using Compton cameras. Compton cameras can also be used in homeland security for location and nuclide identification of remote radiation sources.
We developed an application independent method for representation and calculation of the system matrix (SM) for Compton cameras. The method provides a structured approach for the SM creation which simplifies the software development process and the optimization of the computational performance. Additionally, the SM calculation is completely independent of the reconstruction algorithm itself.
The first reconstruction results based on this unified SM calculation approach for medical imaging and homeland security applications are presented.

  • Poster
    2010 Nuclear Science Symposium and Medical Imaging Conference, 30.10.-06.11.2010, Knoxville TN, USA
  • Contribution to proceedings
    2010 Nuclear Science Symposium and Medical Imaging Conference, 30.10.-06.11.2010, Knoxville TN, USA
    Conference Record 2010 Nuclear Science Symposium and Medical Imaging Conference

Permalink: https://www.hzdr.de/publications/Publ-14823
Publ.-Id: 14823