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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...
Published: 7/7/2020   |   Inventor(s): Amirhossein Goldan, Andrew LaBella, Wei Zhao, Rick Lubinsky
Keywords(s):  
Category(s): Medical Imaging, Optics and Photonics, Campus > Stony Brook University

Fused Multi-layer Amorphous Selenium Sensor

This novel technology uses blocking layers to dampen electronic noise and the effect on imaging, for improved optical and x-ray sensing Background: Amorphous selenium (a-Se) has been commercialized both as an optical sensor and direct x-ray detector, and a-Se with avalanche gain has also been proposed for use in an indirect x-ray detector. Advantages...
Published: 7/6/2020   |   Inventor(s): James Scheuermann, Wei Zhao
Keywords(s): Technology
Category(s): Medical Imaging, Optics and Photonics, Campus > Stony Brook University

Flat-Panel Detectors with Avalanche Gain

Use of photons to create an electrically charged matrix and produce higher quality images Background: Active matrix flat-panel imagers (AMFPI) based on active matrix thin film transistor (TFT) arrays are the most promising technology for digital x-ray imaging due to their compact size, rapid readout, and better imaging performance than screen films....
Published: 7/6/2020   |   Inventor(s): Wei Zhao
Keywords(s):  
Category(s): Medical Imaging, Medical Devices, Campus > Stony Brook University

Dual-screen Digital Radiography with Asymmetric Reflective Screens

This novel radiography technology uses dual screens to project a clearer image of an object. Background: In digital radiography, an imaging system may include a screen that absorbs radiation and produces light, where the produced light is sensed by an array of photosensors to generate electrical signals. The generated electrical signals may be used...
Published: 7/6/2020   |   Inventor(s): Anthony Lubinsky, Wei Zhao
Keywords(s): Technology
Category(s): Diagnostics, Medical Devices, Campus > Stony Brook University

Two-dimensional Field Shaping for Direct Conversion X-ray Flat Panel Imager: Unipolar Charge Sensing and Avalanche Gain

The detector provides stable avalanche multiplication gain in direct conversion amorphous selenium radiation detectors. Background: Conventional micropattern gaseous detectors were developed to improve position resolution. However, the range of radiation induced photoelectrons is micrometer to millimeter in, with gas solid-state detectors having three-orders-of...
Published: 7/5/2020   |   Inventor(s): Wei Zhao, Amirhossein Goldan
Keywords(s):  
Category(s): Medical Imaging, Optics and Photonics, Campus > Stony Brook University

Nano-electrode Multi-well High-gain Avalanche Rushing Photoconductor (NEW-HARP)

An amorphous selenium radiation detector that overcomes disadvantages of conventional detection methods Background: Amorphous Selenium (a-Se), previously developed for photocopying machines, has become commercially used in x-ray photoconductors for Flat-Panel Detectors (FPDs). However, current FPDs are limited by degradation of low-dose imaging performance...
Published: 7/5/2020   |   Inventor(s): Wei Zhao, Amirhossein Goldan, John Rowlands
Keywords(s):  
Category(s): Medical Imaging, Electronics and Electronic Materials, Campus > Stony Brook University

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