Amorphous and polycrystalline photoconductors for direct conversion flat panel X-ray image sensors

S Kasap, JB Frey, G Belev, O Tousignant, H Mani… - Sensors, 2011 - mdpi.com
In the last ten to fifteen years there has been much research in using amorphous and
polycrystalline semiconductors as x-ray photoconductors in various x-ray image sensor …

Recent developments of amorphous selenium-based X-ray detectors: a review

H Huang, S Abbaszadeh - IEEE Sensors Journal, 2019 - ieeexplore.ieee.org
Amorphous selenium (a-Se) is a photoconductive material that has been intensively
investigated from its early application in xerography to its present application in flat panel X …

Spektr: a computational tool for x‐ray spectral analysis and imaging system optimization

JH Siewerdsen, AM Waese, DJ Moseley… - Medical …, 2004 - Wiley Online Library
A set of computational tools are presented that allow convenient calculation of x‐ray spectra,
selection of elemental and compound filters, and calculation of beam quality characteristics …

Flat detectors and their clinical applications

M Spahn - European radiology, 2005 - Springer
Diagnostic and interventional flat detector X-ray systems are penetrating the market in all
application segments. First introduced in radiography and mammography, they have …

Charge collection efficiency in the presence of non-uniform carrier drift mobilities and lifetimes in photoconductive detectors

SO Kasap, MZ Kabir, KO Ramaswami… - Journal of Applied …, 2020 - pubs.aip.org
We consider the charge collection efficiency (CCE) for semiconductors in which the charge
transport parameters, the drift mobility μ, and the carrier lifetime τ have spatial dependence …

Materials innovation and electrical engineering in X-ray detection

B Hou, Q Chen, L Yi, P Sellin, HT Sun… - Nature Reviews …, 2024 - nature.com
X-ray detection is critical for applications in medical diagnosis, industrial inspection, security
checks, scientific inquiry and space exploration. Recent advances in materials science …

Analysis of lead oxide (PbO) layers for direct conversion X-ray detection

M Simon, RA Ford, AR Franklin… - IEEE Symposium …, 2004 - ieeexplore.ieee.org
Lead oxide (PbO) is a candidate direct conversion material for medical X-ray applications.
We produced various samples and detectors with thick PbO layers. X-ray performance data …

Status of direct conversion detectors for medical imaging with X-rays

M Overdick, C Baumer, KJ Engel, J Fink… - … on Nuclear Science, 2009 - ieeexplore.ieee.org
Imaging detectors for medical X-ray and computed tomography (CT) applications have
undergone many improvements and technology changes over time. But most (dynamic) …

Evaluation of the imaging properties of an amorphous selenium‐based flat panel detector for digital fluoroscopy

DC Hunt, O Tousignant, JA Rowlands - Medical physics, 2004 - Wiley Online Library
The imaging performance of an amorphous selenium flat‐panel detector for digital
fluoroscopy was experimentally evaluated using the spatial frequency dependent …

Effects of charge carrier trap** on polycrystalline PbO X-ray imaging detectors

MZ Kabir - Journal of applied physics, 2008 - pubs.aip.org
The effects of charge carrier trap** on the x-ray sensitivity, resolution, and detective
quantum efficiency DQE in polycrystalline lead oxide PbO x-ray imaging detectors are …