Patent Number: 
Section: claims

1. An apparatus for conducting high resolution imaging of radioactive emissions from a desired source, the apparatus comprising:a collimator comprised of a plurality of stacked plates, each plate having a plurality of holes through each plate defining a plurality of passages through the collimator permitting the passage of radiation therethrough;a scintillation crystal permitting the detection of photons coming from the source and passing through the collimator to produce light received by a light pulse sensor;a data processor connected to the light pulse sensor for digitally computing the count of photons and visually constructing a digital image on a display device of the relative location of the emitted radiation;an optical integrating cavity for directing the photons emitted by the scintillation crystal to the light pulse sensor; andwherein the plurality of stacked plates comprises certain plates made from a different material than a remainder of the stacked plates. 2. The apparatus for conducting high resolution imaging of radioactive emissions from a desired source as set forth in claim 1 wherein the optical integrating cavity comprises a reflective, semi-hemispherical intermediate surface for directing the photons emitted from the scintillation crystal towards the light pulse sensor. 3. The apparatus for conducting high resolution imaging as set forth in claim 1 further comprising the about ten-thousand holes in each plate. 4. The apparatus for conducting high resolution imaging as set forth in claim 1 further comprising chemically etched holes in a size ranging from about 565 microns on a top plate to about 206 microns in a bottom plate of the collimator. 5. The apparatus for conducting high resolution imaging as set forth in claim 4 further comprising the plates being about 101 microns thick.