Curved digital X-ray detectors
Abstract A curved image sensor on plastic foil has been developed for cone beam computed tomography (CBCT) X-ray imaging. The image sensor of about 6 × 8 cm2 size has been built on a thin polyimide foil with an indium gallium zinc oxide (IGZO) backplane and an organic photodetectors (OPD) frontplane...
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2020-09-01
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Series: | npj Flexible Electronics |
Online Access: | https://doi.org/10.1038/s41528-020-00084-7 |
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doaj-2df5b8e11fbd446d8d780d59677c909a2021-09-12T12:08:50ZengNature Publishing Groupnpj Flexible Electronics2397-46212020-09-01411810.1038/s41528-020-00084-7Curved digital X-ray detectorsAlbert J.J.M. van Breemen0Matthias Simon1Olivier Tousignant2Santhosh Shanmugam3Jan-Laurens van der Steen4Hylke B. Akkerman5Auke Kronemeijer6Walter Ruetten7Rob Raaijmakers8Lex Alving9Jan Jacobs10Pawel E. Malinowski11Florian De Roose12Gerwin H. Gelinck13Holst Centre/TNOPhilips ResearchPhilips HealthcareHolst Centre/TNOHolst Centre/TNOHolst Centre/TNOHolst Centre/TNOPhilips ResearchPhilips HealthcarePhilips HealthcarePhilips HealthcareimecimecHolst Centre/TNOAbstract A curved image sensor on plastic foil has been developed for cone beam computed tomography (CBCT) X-ray imaging. The image sensor of about 6 × 8 cm2 size has been built on a thin polyimide foil with an indium gallium zinc oxide (IGZO) backplane and an organic photodetectors (OPD) frontplane. A flexible cesium iodide (CsI) scintillator has been attached to the optical sensor with 480 × 640 pixels of 126 µm size. Dark current density of the OPD was low with less than 10−7 mA/cm2 at −2 V, while an external quantum efficiency (EQE) of about 50% was reached in the visible wavelength range matched to the scintillator output. The image quality of the digital X-ray detector allowed for 3D reconstruction images of a bone phantom on a rotating stage with a lab setup. The curved detector with 32 cm curvature radius opens up the path for very compact CBCT gantries with largely reduced footprint.https://doi.org/10.1038/s41528-020-00084-7 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Albert J.J.M. van Breemen Matthias Simon Olivier Tousignant Santhosh Shanmugam Jan-Laurens van der Steen Hylke B. Akkerman Auke Kronemeijer Walter Ruetten Rob Raaijmakers Lex Alving Jan Jacobs Pawel E. Malinowski Florian De Roose Gerwin H. Gelinck |
spellingShingle |
Albert J.J.M. van Breemen Matthias Simon Olivier Tousignant Santhosh Shanmugam Jan-Laurens van der Steen Hylke B. Akkerman Auke Kronemeijer Walter Ruetten Rob Raaijmakers Lex Alving Jan Jacobs Pawel E. Malinowski Florian De Roose Gerwin H. Gelinck Curved digital X-ray detectors npj Flexible Electronics |
author_facet |
Albert J.J.M. van Breemen Matthias Simon Olivier Tousignant Santhosh Shanmugam Jan-Laurens van der Steen Hylke B. Akkerman Auke Kronemeijer Walter Ruetten Rob Raaijmakers Lex Alving Jan Jacobs Pawel E. Malinowski Florian De Roose Gerwin H. Gelinck |
author_sort |
Albert J.J.M. van Breemen |
title |
Curved digital X-ray detectors |
title_short |
Curved digital X-ray detectors |
title_full |
Curved digital X-ray detectors |
title_fullStr |
Curved digital X-ray detectors |
title_full_unstemmed |
Curved digital X-ray detectors |
title_sort |
curved digital x-ray detectors |
publisher |
Nature Publishing Group |
series |
npj Flexible Electronics |
issn |
2397-4621 |
publishDate |
2020-09-01 |
description |
Abstract A curved image sensor on plastic foil has been developed for cone beam computed tomography (CBCT) X-ray imaging. The image sensor of about 6 × 8 cm2 size has been built on a thin polyimide foil with an indium gallium zinc oxide (IGZO) backplane and an organic photodetectors (OPD) frontplane. A flexible cesium iodide (CsI) scintillator has been attached to the optical sensor with 480 × 640 pixels of 126 µm size. Dark current density of the OPD was low with less than 10−7 mA/cm2 at −2 V, while an external quantum efficiency (EQE) of about 50% was reached in the visible wavelength range matched to the scintillator output. The image quality of the digital X-ray detector allowed for 3D reconstruction images of a bone phantom on a rotating stage with a lab setup. The curved detector with 32 cm curvature radius opens up the path for very compact CBCT gantries with largely reduced footprint. |
url |
https://doi.org/10.1038/s41528-020-00084-7 |
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