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Computed tomography with image intensifier: imaging and characterization of materials

Rao, Donepudi Venkateswara and Cesareo, Roberto and Brunetti, Antonio (1999) Computed tomography with image intensifier: imaging and characterization of materials. Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 437 (1), p. 141-151. ISSN 0168-9002. Article.

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DOI: 10.1016/S0168-9002(99)00580-X

Abstract

Computed tomographic images, nondestructive evaluation of materials of ceramics, electrical insulators, wood and other samples obtained, using a new tomographic system based on an image intensifier replacing earlier system (Cesareo et al., Nucl. Instr. and Meth. A 356 (1995) 573). It consists of a charge coupled device camera and an acquisition board. The charge coupled device and the acquisition board allows image processing, filtration and restoration. A reconstruction programme, written in PASCAL is able to give the reconstruction matrix of the linear attenuation coefficients, and simulates the matrix and the related tomography. The flux emitted by the tube is filtered using appropriate filters at chosen energy and reasonable monochromacy is achieved for all the images. The effect of collimators is also studied at various energies with filters and the optimum value is used for better image quality.

Item Type:Article
ID Code:5213
Status:Published
Refereed:Yes
Uncontrolled Keywords:Microtomography tube, computed tomographic images, nondestructive evaluation, X-ray
Subjects:Area 02 - Scienze fisiche > FIS/07 Fisica applicata (a beni culturali, ambientali, biologia e medicina)
Divisions:001 Università di Sassari > 03 Istituti > Matematica e fisica
001 Università di Sassari > 03 Istituti > Igiene e medicina preventiva
Publisher:North Holland / Elsevier
ISSN:0168-9002
Copyright Holders:© 1999 Elsevier Science
Deposited On:10 Dec 2010 12:32

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