Zobrazeno 1 - 7
of 7
pro vyhledávání: '"Ulrich Schiebel"'
Autor:
Henk J. Meulenbrugge, Herfried Wieczorek, Ulrich Schiebel, Norbert Conrads, Norbert Jung, Falko Busse, Martin Weibrecht, P. L. Alving, Walter Ruetten
Publikováno v:
SPIE Proceedings.
In this paper we address design concepts and performance characterization with our laboratory x-ray detector system. Key component is a 1k2 pixel TFT switched photodiode array with a pixel pitch of 200 micrometer. It is built of a-Si:H with a CsI:Tl
Autor:
Carl Glasse, Norbert Conrads, M. J. Powell, Thomas Zaengel, Ian D. French, Martin Weibrecht, Herfried Wieczorek, Ulrich Schiebel, Norbert Jung
Publikováno v:
SPIE Proceedings.
The dream of an all-solid state large area x-ray image sensor with digital readout and full dynamic performance will most probably find a first realization in 2D thin-film amorphous silicon arrays. In this paper we address in particular the evaluatio
Publikováno v:
Nuclear Instruments and Methods. 164:183-187
Backscattering spectra of 350 keV protons incident on a randomly oriented silicon crystal have been measured for angles of incidence ranging from 0.25° to 4.0° and for scattering angles up to 7.5°. A simulation calculation based on multiple scatte
Publikováno v:
Medical Physics. 14:744-751
The imaging performance of a storage phosphor system (SPS) for digital projection radiography is studied in which the x‐ray image is temporarily stored in a light‐stimulable phosphor plate which is subsequently read out by a scanning laser beam.
Publikováno v:
SPIE Proceedings.
A research system for digital radiography is described, which is based on a selenium detector with capacitive probe readout. The detector, in which a selenium drum is used as the primary image receptor, is exposed by a scanning fan beam. Scatter redu
Publikováno v:
SPIE Proceedings.
An experimental set-up of a selenium-based detector with a scanning fan-beam exposure and improved spatial resolution has been realized. The imaging performance in terms of MTF, image noise and signal-to-noise (S/N) ratios (NEQ,DQE) is measured as a
Publikováno v:
Application of Optical Instrumentation in Medicine XIV and Picture Archiving and Communication Systems.
Capacitive sensing of x-ray generated charge images on amorphous selenium layers represents an attractive technique for the electronic recording of projection radiographs. In order to evaluate the practical limits of image quality with such a seleniu