Figure 5
From: Precision imaging of 4.4 MeV gamma rays using a 3-D position sensitive Compton camera
(left) 2-D plot comparing X L and X R , the X-positions calculated from left and right MAPMTs following the Eq. (2). Two clumps seen in the upper right and lower left correspond to the gamma ray events in the scatterer and absorber, respectively. The events in the narrow red dashed boxes satisfy X L \(\simeq \) X R , thus corresponding to single Compton events, whereas multiple Compton and/or escape events from pair creation dominate the remaining diffuse regions. (right) 2-D plot comparing Y L and Y R , which again clearly discriminate single and multiple Compton and/or escape events.
