Modelling solid-state linear X-ray sensors using a mixed-signal hardware description language

Borras, Guillem; Vuorinen, Kimmo; Odet, C.; Gaffiot, F.; Jacquemod, G.

doi:10.1016/s0924-4247(98)00150-2

Cited by 3 publications

(1 citation statement)

References 6 publications

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“…32,33 The method relies on the estimation of the edge spread function ͑ESF͒ of the system obtained as the response to the edge. Taking the derivative of the ESF yields the line spread function ͑LSF͒ in a direction orthogonal to the edge direction.…”

Section: B Modulation Transfer Function Of the Detectormentioning

confidence: 99%

A synchrotron radiation microtomography system for the analysis of trabecular bone samples

et al. 1999

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X-ray computed microtomography is particularly well suited for studying trabecular bone architecture, which requires three-dimensional (3-D) images with high spatial resolution. For this purpose, we describe a three-dimensional computed microtomography (microCT) system using synchrotron radiation, developed at ESRF. Since synchrotron radiation provides a monochromatic and high photon flux x-ray beam, it allows high resolution and a high signal-to-noise ratio imaging. The principle of the system is based on truly three-dimensional parallel tomographic acquisition. It uses a two-dimensional (2-D) CCD-based detector to record 2-D radiographs of the transmitted beam through the sample under different angles of view. The 3-D tomographic reconstruction, performed by an exact 3-D filtered backprojection algorithm, yields 3-D images with cubic voxels. The spatial resolution of the detector was experimentally measured. For the application to bone investigation, the voxel size was set to 6.65 microm, and the experimental spatial resolution was found to be 11 microm. The reconstructed linear attenuation coefficient was calibrated from hydroxyapatite phantoms. Image processing tools are being developed to extract structural parameters quantifying trabecular bone architecture from the 3-D microCT images. First results on human trabecular bone samples are presented.

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Section: B Modulation Transfer Function Of the Detectormentioning

confidence: 99%