Ultra-high-k SrTiO3 hole blocking layer for low excess noise solid-state amorphous selenium avalanche detector
A low-noise selenium based solid-state avalanche detector that will use strontium titanate as the high-k dielectric hole-blocking n-layerRSS.HDBackground> Background:<The photo‑detecting device industry is searching for a solid‑state alternative to the vacuum photomultiplier. Research has shown that amorphous selenium based solid‑state avalanche...
Published: 8/12/2024
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Inventor(s): Atreyo Mukherjee, Wei Zhao, Amirhossein Goldan, Le Thanh Triet Ho, Anthony Lubinsky, Adrian Howansky, Jann Stavro
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Category(s): Technology Classifications > Medical Imaging, Technology Classifications > Optics and Photonics, Technology Classifications > Sensors, Campus > Stony Brook University
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Method and Apparatus for High Efficiency X-ray Imager
An x-ray detector with improved dynamic range and sensitivity that improves the quantum efficiency of x-ray imagers Background: X-ray imaging experienced a ?digital revolution? in the early 2000s, with digital radiography systems being implemented with active matric flat panel images. Due to the compact size, rapid image readout and excellent image...
Published: 4/18/2024
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Inventor(s): Wei Zhao, Amirhossein Goldan, Adrian Howansky, Anthony Lubinsky, James Scheuermann, Jann Stavro
Keywords(s): Charge sensing, Fabrication, High Efficiency Cadmium Selenide, Multi-well, Selenium, Selenium Avalanche Multiplication Gain, Technologies, Unipolar Time-Differential (UTD)
Category(s): Campus > Stony Brook University, Technology Classifications > Nanotechnology, Technology Classifications > Optics and Photonics
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Field-Shaping Multi-Well Avalanche Detector for Direct Conversion Amorphous Selenium
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: 9/6/2024
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Inventor(s): Wei Zhao, Amirhossein Goldan
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Category(s): Campus > Stony Brook University, Technology Classifications > Medical Imaging, Technology Classifications > Optics and Photonics
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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: 9/4/2024
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Inventor(s): Wei Zhao, Amirhossein Goldan, John Rowlands
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Category(s): Campus > Stony Brook University, Technology Classifications > Electronics and Electronic Materials, Technology Classifications > Medical Imaging
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