Abstract: The gamma camera, able to be developed in areas of any size and unlimited, presents such a thickness as to be considered flat and of minimal bulk and it can be assembled in individual modules to be attached one to the other solving the problem of dead zones between individual PSPMTS, with values of intrinsic spatial resolution in the order of 1 mm. The application of the present invention may range from the medical field (PET, SPECT, SPEM, PEM, etc.) to employment in astrophysics.

Abstract: The surgical probe according to the invention includes a collimator, made of lead or a high Z, atomic number metal; a scintillating crystal sensitive to gamma ray having an energy in the range from 30 KeV and 1 MeV; a light guide system; a photomultiplier; and electronics capable of integrating and converting analog signals to digital signals. The probe can be used in either intracavitary mode, or in laparoscopic mode, by putting the probe in a specific trocar. The apparatus may automatically subtract the background; and may provide visualization on a monitor. The probe can also include a flexible tip, in order to enlarge the field of view which the probe can be used to examine.