Prism Mirror Light Guide for High Resolution Depth of Interaction Readout with High Count Rate in PET Scintillators
A device including a plurality of scintillators, a prismatoid, and a detector for detecting subatomic particles effectively Background: Positron Emission Tomography (PET) is a nuclear medical imaging method that outputs 3D images to see the functional processes in living organisms. Positron-emitting radionuclides decay with each annihilation once they are introduced into an organism and they emit two photons in diametrically opposing directions. A time of flight PET system detects the photons, and uses the times of flight of the photons to determine if two registered photons belong to the same positron annihilation event. High depth-of-interaction (DOI) resolution is needed in PET scintillators to reduce parallax error and the spatial blur that results from the small ring diameters of the detection system. The DOI readout is traditionally performed with a double-sided readout using two readout arrays per scintillator array, however, this readout method requires double the amount of electronics compared to a regular PET system. Thus, developments that require one scintillator and one readout array have been made. The conventional light guide geometry for these developments revolve around the use of a flat, uniform reflective material, which essentially directs light back into the original scintillation crystal that gamma-ray absorption took place rather than to the other crystals and readout pixels. This is not optimal because most of the light is not being shared with the other pixels and thus this is relatively inefficient. Since conventional systems and methods fail to provide impactful light sharing techniques in PET detector systems, a new method is needed. Technology Overview: This technology revolves around the detection of sub-atomic particles via a device that includes a plurality of scintillators. There is at least one detector on the first end of a scintillator, and a prismatoid on the second end of the same scintillator. The prismatoid is configured to redirect light between the first pair of adjacent scintillators of the plurality of scintillators. The prismatoid allows for the light to be redirected much more evenly within PET detector systems thus increasing efficiency. Advantages: - Much more efficient than conventional approaches as the redirection of light is more equal - Less electronics necessary as two readout arrays per scintillator array aren't needed Applications: Used to increase the effectiveness and efficiency of PET detector systems and the images they output. Intellectual Property Summary: Patent application submitted,Provisional patent Stage of Development: 62/957,991 Licensing Potential: Development partner,Commercial partner,Licensing Licensing Status: Available for Licensing. R#9053 Additional Information: scintillator,positron emission tomography,tomography,pet,detector,medical imaging,3d image,photon,radionuclide,spatial,reflective,scintillation crystal,crystal,gamma-ray,pet scan,pet scanner,pet imaging,pet imaging cancer,positron emission tomography scan,positron-emission tomography,scintillator detector,medical scan,medical scanning,3d medical imaging,gamma-ray detection,gamma ray imager https://stonybrook.technologypublisher.com/files/sites/e1q13nrbsnehgigmipfn_7413758084_9fcbd8b54f_o.jpg Source: liz west, https://www.flickr.com/photos/calliope/7413758084, CC BY 2.0.