Germanium strip detector Compton telescope using three dimensional readout

Compton telescopes using two germanium strip detectors with depth resolution have been demonstrated at the Naval Research Lab. Depth resolution allows interactions to be located to less than 1 mm, down from 1 cm with no depth resolution, which improves the imaging resolution of the telescope substantially. Compton images and reconstructed energy spectra of events in which gamma rays interact three times in the two detectors but did not deposit their full energy (i.e. Three-Compton) are examined. Finally, the multiple modes of the system including a standard Compton telescope and a Three-Compton telescope are compared.