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Grazioso

Luca Grazioso, Frazione Sant'Atto IT

Patent application numberDescriptionPublished
20090031641Outdoor awning with panels for using solar energy - An outdoor awning with panels for using solar energy, comprising a fixed supporting structure for a plurality of cross-members which can move longitudinally along guides formed within the fixed structure in order to open and close the awning; each cross-member is rigidly connected to the lower face of a canopy. The canopy comprises a plurality of transverse portions, each of which is delimited by a pair of consecutive cross-members and is associated with a plurality of panels which are exposed to sunlight in order to receive the radiation and convert it into energy of another kind. The awning comprises areas of discontinuity, on each transverse portion, so as to mutually space the panels in order to allow the folding of the canopy; the upper face of the canopy, with the awning in the open configuration, allows the draining of rainwater along preset directions.02-05-2009
20100162633Structure for outdoor marquees, pergolas and the like - A structure for outdoor marquees, pergolas and the like, of the type that comprises at least one supporting post with a substantially vertical arrangement, which is associated with at least one beam which can have an even slightly inclined arrangement. The beam comprises two mutually opposite profiles having a substantially U-shaped cross-section, the first profile, which is superimposed on the second profile and faces it, accommodating elements for moving a marquee associated with the structure, the second profile constituting a path for collecting rainwater that drains off the marquee in order to convey it to a drainage path.07-01-2010

Ronald Grazioso, Knoxville, TN US

Patent application numberDescriptionPublished
20090008562Method and Apparatus for Providing Depth-of-Interaction Detection Using Positron Emission Tomography (PET) - A detector is provided for nuclear medicine imaging. Scintillator pixels form an axial array and a transaxial array. A first photosensor is positioned along the axial array; and a second photosensor is positioned along the transaxial array, wherein the first photosensor and the second photosensor provide dual event localization for nuclear medicine imaging.01-08-2009
20090032717High-Resolution Depth-of-Interaction PET Detector - A depth of interaction-sensitive crystal scintillation detector features crystal types that alternate in three-dimensional checkerboard fashion, each type having a different crystal decay time. One or more photosensors are disposed on each of at least two orthogonal surfaces. The scintillation detector provides improved depth of interaction resolution. The different crystal types are identified by pulse shape discrimination processing.02-05-2009
20090108206MR-Compatible Blood Sampling System For PET Imaging Applications in Combined PET/MR Imaging System - An automated blood sampling system for PET imaging applications that can be operated in or very near to the field of view (FOV) of an MR scanner, such as in a combined MR/PET imaging system. A radiation detector uses APDs (avalanche photo-diodes) to collect scintillation light from crystals in which the positron-electron annihilation photons are absorbed. The necessary gamma shielding is made from a suitable shielding material, preferably tungsten polymer composite. Because the APDs are quite small and are magnetically insensitive, they can be operated in the strong magnetic field of an MR apparatus without disturbance.04-30-2009
20090121141IMPLEMENTATION OF WAVELENGTH SHIFTERS IN PHOSWICH DETECTORS - A phoswich device for determining depth of interaction (DOI) includes a wavelength shifting layer between first and second scintillators of different scintillation materials and having different decay time characteristics. The wavelength shifting layer allows a true phoswich device to be constructed where the emission wavelength of one scintillator is in the peak excitation band of the other scintillator, by shifting the scintillation light outside of this excitation band to prevent scintillation light of one scintillator from exciting a response in the other scintillator, thus enabling unique identification of the location of a gamma photon scintillation event. The phoswich device is particularly applicable to positron emission tomography (PET) applications.05-14-2009
20100065746SYSTEMS AND METHODS FOR CALIBRATING A SILICON PHOTOMULTIPLIER-BASED POSITRON EMISSION TOMOGRAPHY SYSTEM - A representative positron emission tomography (PET) system includes a positron emission tomography detector having one or more silicon photomultipliers that output silicon photomultipliers signals. The PET system further includes a calibration system that is electrically coupled to the silicon photomultipliers. The calibration system determines a single photoelectron response of the silicon photomultipliers signals and adjusts a gain of the silicon photomultipliers based on the single photoelectron response.03-18-2010
20100074396MEDICAL IMAGING WITH BLACK SILICON PHOTODETECTOR - Medical imaging may be accomplished with a high photoconductive gain at a relatively low operating voltage by employing a black silicon photodetector and integrating CMOS components with elements of the photodetector.03-25-2010
20100090114IMPLEMENTATION OF COLORED WAVELENGTH SHIFTERS IN PHOSWICH DETECTORS - A phoswich device for determining depth of interaction (DOI) includes a first scintillator having a first scintillation decay time characteristic, a second scintillator having a second scintillation decay time characteristic substantially equal to the first scintillation decay time, a photodetector coupled to the second scintillator, and a wavelength shifting layer coupled between the first scintillator and the second scintillator, wherein the wavelength shifting layer modifies the first scintillation decay time characteristic of the first scintillator to enable the photodetector to differentiate between the first decay time characteristic and the second decay time characteristic. The phoswich device is particularly applicable to positron emission tomography (PET) applications.04-15-2010
20110147567SiPM Photosensor With Early Signal Digitization - The present invention is a Silicon PhotoMulitplier comprising a plurality of photon detection cell clusters each comprising a plurality of avalanche photodiodes connected in parallel, so that the output of each avalanche photodiode is summed together and applied to a cell cluster output. Each of the plurality of cell cluster outputs is connected to one of a plurality of cluster readout circuits, each of which includes an analog to digital converter that converts an analog representation of the total energy received by a photon detection cell cluster to a digital energy signal. A SiPM Pixel reader circuit is connected to the plurality of cluster readout circuits and configured to generate an overall pixel output by digital processing the plurality of digital energy signals received from the plurality of photon detection cell clusters by way of the plurality of cluster readout circuits. The SIPM pixel reader circuit also receives digital signals representative of timing triggers and the total energy received by a specific photon detection cell cluster and generates an overall SiPM energy signal and overall timing trigger in response to the signals received from the plurality of cluster readout circuits.06-23-2011

Patent applications by Ronald Grazioso, Knoxville, TN US