SHAYESTEH NAGHINAJAD MOHAMMADKHANLOU

Dottoressa di ricerca

ciclo: XXXVI


supervisore: Prof.Annamaria Pau

Titolo della tesi: 3D tomography for non-destructive structural inspection and image reconstruction

The aim of this thesis is to contribute to the improvement of the tomography techniques for non-destructive inspection and image reconstruction. A typical approach to 3D image reconstruction is computed tomography, which reconstructs the sought image based on a set of slice projections, relying on the Fourier slice theorem in 2D. This thesis develops an imaging technique based on the Fourier slice theorem in 3D, which relates a set of projections onto planes, that is a 3D Radon transform, to a 3D Fourier transform. By calculating 3D inverse Fourier transforms, the 3D image of the scanned object can be reconstructed. The formulation developed is applied to the reconstruction of the distribution of the light emission density from magnetically confined plasma in 3D, employing the data provided by ENEA which were recorded within the framework of the PROTO-SPHERA experiment. The analysis carried out enabled observation of physical phenomena related to the plasma formation, the rotation of the torus, but above all visualization of the cross sections. On separating the light emission frequencies, also the spatial source of the different emissions was detected.

Produzione scientifica

11573/1700307 - 2024 - PROTO-SPHERA: a magnetic confinement experiment which emulates the jet + torus astrophysical plasmas
Alladio, Franco; Micozzi, Paolo; Boncagni, Luca; Pau, Annamaria; Naghinajad, Shayesteh; Macera, Samanta; Damizia, Yacopo; Buratti, Paolo; Filippi, Francesco; Galatola Teka, Giuseppe; Giammanco, Francesco; Giovannozzi, Edmondo; Iafrati, Matteo; Lampasi, Alessandro; Marsili, Paolo - 01a Articolo in rivista
rivista: PLASMA PHYSICS AND CONTROLLED FUSION (IOP Publishing Limited:Dirac House, Temple Back, Bristol BS1 6BE United Kingdom:011 44 117 9297481, EMAIL: custserv@iop.org, INTERNET: http://www.iop.org, Fax: 011 44 117 9294318) pp. 1-22 - issn: 0741-3335 - wos: WOS:001157094200001 (0) - scopus: 2-s2.0-85184144191 (0)

11573/1671632 - 2023 - 3D ultrasonic tomography for image reconstruction: an application to the plasma dynamics of PROTOSPHERA
Naghinajad Mohammadkhanlou, Shayesteh; Pau, A - 04d Abstract in atti di convegno
congresso: The ECCOMAS Young Investigators Conference (Porto)
libro: Young Investigators - ()

11573/1477097 - 2020 - A Survey on Through-the-Road Hybrid Electric Vehicles
Rizzo, G.; Naghinajad Mohammadkhanlou, Shayesteh; Tiano, F. A.; Marino, M. - 01a Articolo in rivista
rivista: ELECTRONICS (Basel : MDPI) pp. 1-22 - issn: 2079-9292 - wos: WOS:000549854600178 (11) - scopus: 2-s2.0-85086234972 (17)

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