Title of article
First tests of a Medipix-1 pixel detector for X-ray dynamic defectoscopy
Author/Authors
Vavrik، نويسنده , , Daniel and Jakubek، نويسنده , , Jan and Visschers، نويسنده , , Jan and Pospisil، نويسنده , , Stanislav and Ponchut، نويسنده , , Cyril and Zemankova، نويسنده , , Jaroslava، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2002
Pages
8
From page
216
To page
223
Abstract
Recent theoretical damage material models describe the dynamic development of voids and microcracks in materials under plastic deformation. For these models, experimental verification is needed. We propose direct and non-destructive observation of the propagation of material damage by measuring changes in transmission of X-rays penetrating a stressed material, using a photon-counting X-ray imager. The present contribution aims to demonstrate the applicability of silicon and gallium-arsenide devices for X-ray transmission measurements with a specimen of high-ductile aluminium alloy under study. The first experiments to determine the resolution and the sensitivity of the proposed method with the Medipix-1 pixel detector are presented.
Keywords
X- and gamma-ray detectors , Imaging detectors , digital radiography , Defectoscopy , Fracture mechanics , Damage , Voids , Semiconductor pixel detectors , Position- sensitive detectors , X-ray and gamma-ray measurements , X-ray radiography
Journal title
Nuclear Instruments and Methods in Physics Research Section A
Serial Year
2002
Journal title
Nuclear Instruments and Methods in Physics Research Section A
Record number
2196845
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