Sökning: "Radiological research"

Visar resultat 21 - 25 av 70 avhandlingar innehållade orden Radiological research.

  1. 21. Assessment of mobile radiometry data in radiological emergencies using Bayesian statistical methods

    Författare :Antanas Bukartas; Malmö Medicinsk strålningsfysik; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Mobile gamma spectrometry; Gamma spectrometry; Orphan source; lost source; Ionizing radiation; Bayesian; Activity; position; activity density; reconstruction; UAV; car-borne;

    Sammanfattning : Nuclear technology and the use of radiation sources have been extensively adopted in the modern world. Despite that, a number of radiological accidents, significantly affecting population and the environment, has happened. Few of the most known are accidents in Chernobyl and Fukushima nuclear power plants. LÄS MER

  3. 22. Detector Considerations for Time-of-Flight in Positron Emission Tomography

    Författare :Florian Bauer; Christian Bohm; Magnus Dahlbom; Stockholms universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Positron Emission Tomography; Time of Flight; Depth of Interaction; LSO; Radiological physics; Radiofysik; Medical Radiation Physics; medicinsk strålningsfysik;

    Sammanfattning : Positron-Emission-Tomography (PET) is a modern imaging technique in nuclear medicine providing quantitative 3D distribution of a radioactive tracer substance in the human body. The gamma-detector is the first link in the chain of components that constitutes a PET. LÄS MER

  4. 23. Skuggor av sanning : Tidig svensk radiologi och visuell kultur

    Författare :Solveig Jülich; Boel Berner; Linköpings universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; science studies; visual culture; history of Swedish radiology; professionalization; scientific images; scientific observation; objectivity; subjectivity; judgment; röntgenfotografi; medicinhistoria; radiologi historia; visuell perception; INTERDISCIPLINARY RESEARCH AREAS; TVÄRVETENSKAPLIGA FORSKNINGSOMRÅDEN; HUMANITIES and RELIGION;

    Sammanfattning : The present study deals with the introduction and reception of x-ray images in Sweden around 1900. The general aim is to investigate two cultural contexts of the early x-ray image. It is shown that during the initial years x-ray images were wedded with photographs and film in an expanding mass visual culture. LÄS MER

  5. 24. Interventions for portal hypertension in patients with portal vein occlusion and possible effects of a stent-graft on hepatic circulation

    Författare :Inger Keussen; Malmö Diagnostisk radiologi; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; recanalization; TIPS; hepatic vein occlusion; children; Key words: portal vein occlusion; scintigraphy; stent; portal hypertension;

    Sammanfattning : Symptomatic portal hypertension (PH), is often treated by transjugular intrahepatic portosystemic shunt (TIPS). Patients with PH, caused by prehepatic portal vein occlusion, require recanalization with stent or stent-graft often followed by additional TIPS. LÄS MER

  7. 25. Radiation exposure of human populations in villages in Russia and Belarus affected by fallout from the Chernobyl reactor

    Författare :Christian Bernhardsson; Malmö Medicinsk strålningsfysik; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Chernobyl; caesium; effective dose; OSL; NaCl; TL; LiF; radiation protection survey instruments; deposition variability; long-term series;

    Sammanfattning : A quarter of a century has elapsed since the catastrophe at the nuclear power plant in Chernobyl. The radioactive fallout affected all the European countries and most severely the three countries of Belarus, Russia and Ukraine. LÄS MER