Patent ID: 8237130

Claim:
An improved neutron scatter camera, comprising: a liquid scintillator cell having a front and a rear face, and a photomultiplier tube (PMT) coupled to the rear face of the liquid scintillator cell to provide a detector assembly; a first plurality of detector assemblies disposed in a first group and mounted onto a first plurality of struts, the first plurality of struts interconnected to form a first rigid frame; a second plurality of detector assemblies disposed in a second group and mounted onto a second plurality of struts, the second plurality of struts interconnected to form a second rigid frame; a pulse discrimination module in electrical communication with each of the first and second plurality of detector assemblies; a rigid cage having a length, width and height, wherein the first and second rigid frames are disposed with the rigid cage and held in parallel alignment with respect to each other and with the plane of the rigid cage height and width; and a means for moving the first and second rigid frames relative to each other within the rigid cage.