amorphous selenium flat|panel

The difference between amorphous selenium and amorphous ...

The amorphous selenium flat panel detector is mainly composed of an amorphous selenium layer TFT. The incident X-rays make the selenium layer generate electron- ...

What is the difference between amorphous silicon ... - Perlove Medical

Amorphous selenium flat panel detectors use selenium as a photoconductive material, which can convert optical signals directly into electrical signals, thus ...

What is the difference between amorphous silicon ... - Perlove Medical

The amorphous selenium flat panel detector uses selenium as a photoconductive material, which can directly convert light signals into electrical ...

Amorphous selenium flat panel detectors for medical applications

This detector consists of an amorphous selenium (a-Se) photoconductor optically coupled to a structured cesium iodide (CsI) scintillator.

Amorphous selenium flat panel detectors for digital mammography

Model observers have been developed which incorporate a specific imaging task, system performance, and human observer characteristics and can potentially ...

Recent Developments of Amorphous Selenium-Based X-Ray ...

Abstract: Amorphous selenium (a-Se) is a photoconductive material that has been intensively investigated from its early application in ...

Flat-panel digital radiology with amorphous selenium and active ...

Future imaging techniques will be capable of high image quality, fast acquisition, compactness, and versatile operation. A flat-panel imager that is ...

What are the advantages and disadvantages of amorphous ...

The conversion of amorphous selenium flat panel detectors is relatively straightforward, that is, through semiconductors, the received X-rays are directly ...

X‐ray imaging using amorphous selenium: Feasibility of a flat panel ...

Abstract. We investigate a concept for making a large area, flat-panel detector for digital radiology. It employs an x-ray sensitive photoconductor to convert ...

Flat panel detector | Radiology Reference Article | Radiopaedia.org

photoconductor layer made of amorphous selenium (a-Se). TFT readout array. This technique employs a semiconductor material which produces ...

Digital Chest Radiography with a Selenium-Based Flat-Panel ...

OBJECTIVE. We compared the soft-copy images produced by a digital chest radiography system that uses a flat-panel X-ray detector based on amorphous selenium ...

Amorphous selenium flat panel x-ray imager for tomosynthesis and ...

A flat panel x-ray imager exhibiting reduced ghosting effects and overvoltage protection by appropriate leakage current characteristics of the thin-film ...

Image Quality and Radiation Dose on Digital Chest Imaging

The amorphous selenium flat-panel detector (Epex, Hologic; and DirectRay DR 1000, Direct Radiography Corporation) was used in combination with a ceiling-mounted ...

High spatial resolution direct conversion amorphous selenium X-ray ...

Zhao and J.A. Rowlands, X-ray imaging using amorphous selenium: Feasibility of a flat panel self-scanned detector for digital radiology, Med.

Digital Mammography Detectors Compared: Cesium Iodide vs ...

Direct Conversion. Later systems like the Hologic Dimensions or GE Essential use direct flat panel detectors made with amorphous selenium (α-Se). In these ...

Investigation of lag and ghosting in amorphous selenium flat-panel x ...

Our goal is to understand the temporal response of amorphous selenium (a-Se) x-ray imaging detectors. The temporal response caused by charge trapping and ...

Recent Developments of Amorphous Selenium- Based X-Ray ...

Tousignant, and J. A. Rowlands, “Evaluation of the imaging properties of an amorphous selenium-based flat panel detector for digital fluoroscopy,” Med. Phys ...

Flat-Panel Digital Radiology with Amorphous Selenium and Active ...

The advantages of amorphous selenium include high resolution and low noise without loss of signal strength. The advantages of the active matrix are real-time ...

Imaging performance of an amorphous selenium flat-panel detector ...

The imaging performance of a 34.5 x 34.5 cm2 direct conversion flat-panel detector with a 1 mm thick amorphous selenium layer was measured over the ...

Amorphous selenium flat panel detectors for digital mammography ...

Phys. 32, 807–814 (2005). ... 46W. Zhao, I. Blevis, S. Germann, and J. A. Rowlands, “Digital radiology using active matrix readout of amorphous ...