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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
|
Inventor(s):
Atreyo Mukherjee
,
Wei Zhao
,
Amirhossein Goldan
,
Le Thanh Triet Ho
,
Anthony Lubinsky
,
Adrian Howansky
,
Jann Stavro
Keywords(s):
Category(s):
Technology Classifications > Medical Imaging
,
Technology Classifications > Optics and Photonics
,
Technology Classifications > Sensors
,
Campus > Stony Brook University
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
|
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
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
|
Inventor(s):
Wei Zhao
,
Amirhossein Goldan
Keywords(s):
Category(s):
Campus > Stony Brook University
,
Technology Classifications > Medical Imaging
,
Technology Classifications > Optics and Photonics
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
|
Inventor(s):
Wei Zhao
,
Amirhossein Goldan
,
John Rowlands
Keywords(s):
Category(s):
Campus > Stony Brook University
,
Technology Classifications > Electronics and Electronic Materials
,
Technology Classifications > Medical Imaging