Zobrazeno 1 - 10
of 18
pro vyhledávání: '"Habib Mani"'
Autor:
Karim S. Karim, Giovanni DeCrescenzo, Alla Reznik, Oleksandr Bubon, Luc Laperriere, Jonathan Greenspan, Olivier Tousignant, Habib Mani, George Belev, Safa Kasap, Joel B. Frey, John A. Rowlands
Publikováno v:
Sensors, Vol 11, Iss 5, Pp 5112-5157 (2011)
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 applications, most notably in flat panel x-ray imagers (FPXIs). We first outlin
Externí odkaz:
https://doaj.org/article/a516dea15ff84ac383f740215512ccd7
Publikováno v:
Journal of Vacuum Science & Technology A. 39:047001
Publikováno v:
Journal of Vacuum Science & Technology A. 37:061501
Doped and stabilized amorphous selenium (a-Se) alloys in a multilayer form are currently used as a photoconductor in direct conversion flat panel x-ray imagers in mammography and tomosynthesis. While much progress has been made on the physics of such
Autor:
Alla Reznik, Jonathan Greenspan, Luc Laperriere, Karim S. Karim, Habib Mani, Olivier Tousignant, Oleksandr Bubon, George Belev, John A. Rowlands, Joel B. Frey, Giovanni DeCrescenzo, Safa Kasap
Publikováno v:
Sensors, Vol 11, Iss 5, Pp 5112-5157 (2011)
Sensors (Basel, Switzerland)
Sensors (Basel, Switzerland)
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 applications, most notably in flat panel x-ray imagers (FPXIs). We first outlin
Autor:
Luc Laperriere, Habib Mani, John A. Rowlands, George Belev, Safa Kasap, Alla Reznik, Olivier Tousignant, Joel B. Frey
Publikováno v:
physica status solidi (b). 246:1794-1805
We describe the progress in the science and technology of stabilized a-Se from its early use in xerography and xeroradiography to its present use in commercial modern flat panel X-ray imagers and ultrasensitive video tubes which utilize impact ioniza
Autor:
M. Zahangir Kabir, Olivier Tousignant, Safa Kasap, Philippe-Aubert Gauthier, Habib Mani, M. Yunus
Publikováno v:
Current Applied Physics. 6:393-398
A model explaining the ghosting mechanisms in amorphous selenium based X-ray image detectors is described by considering deep trapping of charge carriers, trapped charges arising from previous exposures, trap filling effects, recombination between dr
Autor:
N. Safavian, M. F. Mokam, M. H. Izadi, Olivier Tousignant, Mohammad Y. Yazdandoost, Karim S. Karim, Luc Laperriere, Habib Mani
Publikováno v:
SPIE Proceedings.
Active pixel sensor (APS) circuits are an alternate to passive pixel sensor (PPS) technology which, when integrated with a direct detection amorphous selenium (a-Se) photoconductor, can enable high performance, digital x-ray imaging applications such
Publikováno v:
physica status solidi c. 6
Commercially available flat panel, direct conversion, digital X-ray image detectors use a photoconductive layer of stabilized amorphous selenium (a-Se) sandwiched between two electrodes to convert incident X-ray radiation into stored electrical charg
Publikováno v:
physica status solidi c. 6
We have studied the effects of adding small amounts of Mg on the electrical and thermal properties of a-Se films. The addition of Mg in the ppm range has resulted in significant changes in the charge transport and stability. The doped samples have sh
Publikováno v:
Journal of Physics: Conference Series. 558:012007
Amorphous selenium (a-Se) is currently used in x-ray image detectors as an x-ray photoconductor. Normally a-Se films used in device applications are fabricated by the evaporation of vitreous bulk material loaded into boats in a typical vacuum deposit