Image reconstruction from Compton scattering data

Qiang Yan Pan, Y. Gono, S. Motomura, S. Enomoto, Y. Yano

Research output: Contribution to journalArticlepeer-review


A new image reconstruction method was developed for a Compton camera. A simulation to determine a γ-ray source position was performed by using the simulation tool, GEANT4. An image reconstruction was made in two steps. First, a three dimensional image was constructed and projected in one selected plane, then the points from each ellipse was picked up by taking the peak points of a density distribution of crossing points between the ellipse and the first step image. The second step procedure improved the accuracy and the spatial resolution of a position determination significantly, comparing with the image obtained by only the first step. The accuracy and the resolution for a point source were obtained to be about 0.02 mm and (1.35±0.15) mm, respectively. The same procedure was applied to an imaging of the distributed γ-ray source.

Original languageEnglish
Pages (from-to)365-367
Number of pages3
JournalNuclear Science and Techniques/Hewuli
Issue number6
Publication statusPublished - Dec 1 2004


  • Compton scattering event
  • Image reconstruction
  • Position sensitive germanium detector

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Nuclear Energy and Engineering


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