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001-es BibID:	BIBFORM119841
035-os BibID:	(cikkazonosító)5998 (Scopus)85136736352 (WoS)000845193900001
Első szerző:	Pineau, Emma
Cím:	Comparative Analysis of Multilayer Lead Oxide-Based X-ray Detector Prototypes / Emma Pineau, Oleksandr Grynko, Tristen Thibault, Alexander Alexandrov, Attila Csík, Sándor Kökényesi, Alla Reznik
Dátum:	2022
ISSN:	1424-8220
Megjegyzések:	Lead oxide (PbO) photoconductors are proposed as X-ray-to-charge transducers for the next generation of direct conversion digital X-ray detectors. Optimized PbO-based detectors have potential for utilization in high-energy and dynamic applications of medical X-ray imaging. Two polymorphs of PbO have been considered so far for imaging applications: polycrystalline lead oxide (poly-PbO) and amorphous lead oxide (a-PbO). Here, we provide the comparative analysis of two PbO-based single-pixel X-ray detector prototypes: one prototype employs only a layer of a-PbO as the photoconductor while the other has a combination of a-PbO and poly-PbO, forming a photoconductive bilayer structure of the same overall thickness as in the first prototype. We characterize the performance of these prototypes in terms of electron-hole creation energy (W-+/-) and signal lag-major properties that define a material's suitability for low-dose real-time imaging. The results demonstrate that both X-ray photoconductive structures have an adequate temporal response suitable for real-time X-ray imaging, combined with high intrinsic sensitivity. These results are discussed in the context of structural and morphological properties of PbO to better understand the preparation-fabrication-property relationships of this material.
Tárgyszavak:	Természettudományok Fizikai tudományok idegen nyelvű folyóiratközlemény külföldi lapban folyóiratcikk direct conversion lead oxide PbO photoconductor sensitivity signal lag X-ray detector
Megjelenés:	Sensors. - 22 : 16 (2022), p. 1-16. -
További szerzők:	Grynko, Oleksandr Thibault, Tristen Alexandrov, Alexander Csík Attila Kökényesi Sándor (1946-) (fizikus) Reznik, Alla
Internet cím:	Szerző által megadott URL DOI Intézményi repozitóriumban (DEA) tárolt változat
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