Sökning: "Transmission tomography"

Visar resultat 1 - 5 av 7 uppsatser innehållade orden Transmission tomography.

  1. 1. Improving the experimental setup for ultrasound-optical tomography imaging

    Uppsats för yrkesexamina på avancerad nivå, Luleå tekniska universitet/Institutionen för teknikvetenskap och matematik

    Författare :Ibtisam Dahir Ahmed; [2023]
    Nyckelord :Ultrasound-optical tomography UOT ; thulium-doped lithium niobate;

    Sammanfattning : According to Bröstcancer förbundet, mammography is not efficient at detecting tumors in dense breast tissue or diagnosing breast cancer at its early stages. Ultrasound-optical tomography (UOT) is an imaging technique in development and has the potential for deep-tissue imaging. LÄS MER

  3. 2. Chromia-Alumina Thin Films from Alkoxide Precursors : From Precursor Synthesis to Deposition and Characterisation

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Oorganisk kemi

    Författare :Elina Elvelo; [2023]
    Nyckelord :alkoxide; synthesis; thin film; coating; alumina; chromia; spinodal decomposition;

    Sammanfattning : A hetero-bimetallic alkoxide CrAl3(OiPr)12 was synthesised through metathesis of achromium(III)chloride THF complex (CrCl3 . 3 THF) and 3 KAl(OiPr)4.It was used as a single sourceprecursor to make oxide powders and films with 1:3 chromium/aluminium compositionthrough sol-gel synthesis. LÄS MER

  4. 3. Dielectric Characterization of Bone Using Ultra Wide Band Microwave Transmission Probe

    Master-uppsats, Uppsala universitet/Institutionen för informationsteknologi

    Författare :Abhinav Singh; [2022]
    Nyckelord :;

    Sammanfattning : The body has the capability of reabsorbing and generating new bone throughout life. Bone remains healthy as long it maintains the equal amount of old and new bones. Bone loss is occurred when the old bone absorbed is more and new bone created is less. Osteoporosis is a very common bone disease among men and women in their later years. LÄS MER

  5. 4. 2D & 3D phase retrieval for propagation-based X-ray phase-contrast tomography

    Master-uppsats, Lunds universitet/Synkrotronljusfysik; Lunds universitet/Fysiska institutionen

    Författare :Philip Stjärneblad; [2021]
    Nyckelord :Propagation-based X-ray phase-contrast tomography; PB-PCT; Propagation-based X-ray phase-contrast Imaging; PB-PCI; 2d phase retrieval; 3d phase retrieval; TIE; sinogram consistency; reconstruction artefacts; Science General;

    Sammanfattning : Propagation-based X-ray phase-contrast tomography is a 3d imaging technique that utilizes two-dimensional projections from different angular views $\theta =[0,\pi]$ to reconstruct the 3D object information. The phase-contrast allows for higher feature contrast than conventional transmission tomography, as the phase interference gives rise to a sharp edge contrast. LÄS MER

  7. 5. Preparation of Materials for Deep Tissue Imaging with Slow Light

    Master-uppsats, Lunds universitet/Atomfysik; Lunds universitet/Fysiska institutionen

    Författare :Mengqiao di; [2018]
    Nyckelord :Ultrasound Optical Tomography; Deep Tissue Imaging; Monte Carlo Simulation; Spectral Hole Burning; Physics and Astronomy;

    Sammanfattning : Ultrasound Optical Tomography (UOT) is a proposed technique, which combines ultrasound imaging and optical imaging in a new way to detect, e.g. LÄS MER