Sökning: "Scattered radiation"

Visar resultat 11 - 15 av 30 uppsatser innehållade orden Scattered radiation.

  1. 11. Radiation exposure to personnel during CT procedures

    Kandidat-uppsats, Karlstads universitet/Institutionen för ingenjörsvetenskap och fysik (from 2013)

    Författare :Henrik Berg; [2018]
    Nyckelord :CT; Scattered radiation; Cataract; Cancer; PCXMC; Dose;

    Sammanfattning : During X-ray examinations a large part of the radiation is scattered from the patient, contributing to larger radiation doses to medical staff operating inside the examination room. Ionizing radiation contributes to the risk of developing cancer and hereditary diseases but also to the risk of developing cataract. LÄS MER

  3. 12. Modellering av energisignatur för flerbostadshus : En studie över möjligheter och begränsningar med olika sätt att beräkna energianvändning, baserad på energianvändning i sex hus belägna i Linköping

    Uppsats för yrkesexamina på avancerad nivå,

    Författare :Max Wahlqvist; [2018]
    Nyckelord :Energy signature; Energisignatur; linjär regression; flerbostadshus; determinationskoefficienten; klimatförändringen;

    Sammanfattning : This thesis is conducted within the project of categorizing the building stock in Sweden, which is a part of the research program Spara and bevara initiated by the Swedish Energy Agency. Categorizing the building stock is done to find typical buildings of which to analyze for energy efficiency measures. LÄS MER

  4. 13. The importance of medical staff placement in CT examination rooms : A study of the scattered radiation doses in CT examination rooms in Da Nang, Vietnam

    Uppsats för yrkesexamina på grundnivå, Högskolan i Jönköping/HHJ, Avd. för naturvetenskap och biomedicin

    Författare :Fredrik Palm; Nelson Frida; [2017]
    Nyckelord :Ionizing radiation; radiation protection; radiography; radiographer; dosimetry;

    Sammanfattning : .... LÄS MER

  5. 14. Investigation of phase conjugation for medical imaging

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

    Författare :Ivan Sytcevich; [2017]
    Nyckelord :Phase conjugation; Ultrasound Optical Tomography; Rare-Earth-Doped Crystals.; Physics and Astronomy;

    Sammanfattning : With the development of extremely precise spectral filters based on spectral hole burning and slow light effects, the idea of their implementation in an Ultrasound Optical Tomography (UOT) medical imaging technique arose. Simulations have shown that the resulting Contrast-to-Noise (CNR) ratio is fairly good at depths up to 5 cm but decreases dramatically when probing deeper in tissue. LÄS MER

  7. 15. Development of an Upconverting Nanoparticles Quantum Yield Measurement System

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

    Författare :Meng Li; [2016]
    Nyckelord :UCNPs; upconverting nanoparticles; QY; quantum yield; fluorescence; luminescence; Physics and Astronomy;

    Sammanfattning : Fluorescence imaging is a growing biomedical technique; it can be used to localize the luminescent biomarkers inside the tissue. Lanthanide-doped upconverting nanoparticles (UCNPs) are promising luminescent probes for multiple applications in biophotonics. They allow acquiring autofluorescence-free recordings with high spatial resolution. LÄS MER