Figure 7
From: Precision imaging of 4.4 MeV gamma rays using a 3-D position sensitive Compton camera
(a) Experimental geometry for measuring prompt gamma rays emitted from a PMMA block phantom using the HPGe detector. The proton beam intensity was 3 pA throughout the experiment. (b) Experimental geometry for imaging 4.4 MeV gamma rays using the 3D-PSCC. PMMA slab phantoms were irradiated by a 70 MeV proton beam with 3 pA intensity.
