Work

Propagation beam consideration for 3D THz computed tomography

Year: 2012

Type: article

Abstract: In this paper, a model of the beam propagation is developed according to the physical properties of THz waves used in THz computed tomography (CT) scan imaging. This model is first included in an acquisition simulator to observe and estimate the impact of the Gaussian beam intensity profile on the projection sets. Second, the model is introduced in several inversion methods as a convolution filter to perform efficient tomographic reconstructions of simulated and real acquired objects. Results obtained with three reconstruction methods (BFP, SART and OSEM) are compared to the techniques proposed in this paper. We will demonstrate an increase of the overall quality and accuracy of the 3D reconstructions.

Source: Optics Express

DOI: 10.1364/oe.20.005817

Authors: B. Recur, J. P. Guillet, I. Manek-Hönninger, J. C. Delagnes, W. Benharbone, P. Desbarats, J. P. Domenger, L. Canioni, P. Mounaix

Institutions: Centre National de la Recherche Scientifique, Laboratoire Bordelais de Recherche en Informatique, Laboratoire Ondes et Matière d'Aquitaine

Language: English

Topic: Terahertz technology and applications

Subfield: Electrical and Electronic Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $2,270

OpenAlex ID: W2045951691

FWCI: 4.073

Cites: 18

Cited by: 73

Related to: 10