Demonstration of megavoltage and diagnostic x‐ray imaging with hydrogenated amorphous silicon arrays
Citations Over TimeTop 1% of 1992 papers
Abstract
Flat-panel imagers consisting of the first large area, self-scanning, pixelated, solid-state arrays made with hydrogenated amorphous silicon (a-Si:H) are under development by the authors for applications in diagnostic x-ray and megavoltage radiotherapy imaging. The arrays, designated by the acronym MASDA for multi-element amorphous silicon detector array, consist of a two-dimensional array of a-Si:H photodiodes and thin-film transistors and are used in conjunction with scintillating materials. Imagers utilizing MASDA arrays offer a variety of advantages over existing technologies. This article presents initial megavoltage and diagnostic-quality x-ray images taken with several such arrays including the first examples of anatomical-phantom images. The external readout electronics and imaging techniques required to obtain such images are outlined, the construction, operation, and advantages of the arrays briefly reviewed, and the future potential of this new technology discussed.
Related Papers
- → Direct-conversion flat-panel X-ray image sensors for digital radiography(2002)214 cited
- → Direct-conversion flat-panel X-ray image detectors(2002)81 cited
- → X-Ray Photoconductors for Direct Conversion of Digital Flat-Panel X-Ray Image Detectors(2011)1 cited
- X-ray photoconductors and their use within direct conversion flat panel digital x-ray image detectors.(2005)