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512 x 512 CCD Visible Imager With A Fiber-Optic Faceplate

Authors: G. Beal; G. Boucharlat; F. Cappechi;

512 x 512 CCD Visible Imager With A Fiber-Optic Faceplate

Abstract

The paper describes the design and performance of a solid-state area-array CCD sensor coupled to a fiber-optic slab. The sensor uses a fra,e transfer organization and has 512 lines of 512 photoelements, each of 18.5 μm x 23.5 μm dimensions, giving, a total active area of 9.472 mm x 12.032 mm. This area being entirely photo-sensitive (no memory zone), the device operates in a single-field mode. The on-chip amplifier allows a readout frequency (pixel frequency) of over 10 MHz. The sensor is coupled to a fiber-optic slab, of unity magnification, overlying the entire photosensitive surface. The elementary fiber diameter is 5.5 μm. A new method of coupling through a gluing process ensures an excellent dimensional stability and immunity to mechanical stresses (vibrations, accelerations ...). The assembly forms a single unit with a metallic centring disk, to facilitate mounting and positioning in equipment. The good performance of the combined sensor and fiber-optic faceplate : low noise (300 μV, wide dynamic range (6500:1) and high illumination response (12 V/μJ/cm2 at λ 550 nm) opens many applications, for example - low-light-level imaging by coupling with an LII tube : nighttime surveillance, astronomy ...) - oscilloscope trace sensing, transient and high-speed phenomena analysis - laser imaging - medical imaging. Furthermore, the 512 x 512 pixel image format is particularly well suited to digital image acquisition and processing. This product was developed as part of a research project for the French Coumissariat A l'Energie Atomique.

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
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