Sökning: "Short-lived radionuclides"

Visar resultat 1 - 5 av 9 avhandlingar innehållade orden Short-lived radionuclides.

1. 1. Short-lived radionuclides and image analysis in whole-body autoradiography : studies run in parallel with positron emission tomography

   Författare :Roland d'Argy; Uppsala universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; PHARMACY; FARMACI;

   Sammanfattning : .... LÄS MER

3. 2. Development of in vitro and ex vivo positron-emitting tracer techniques and their application to neurotrauma

   Författare :Sven Sihver; Uppsala universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Neurosciences; Short-lived radionuclides; in vitro receptor binding; in vitro and ex vivo autoradiography; positron emission tomography; benzodiazepine; muscarinic acetylcholine; and NMDA receptors in CNS; experimental neurotrauma; Neurovetenskap; Neurology; Neurologi; medicinsk farmakologi; Medical Pharmacology;

   Sammanfattning : The use of positron-emitting tracers has been extended beyond tomographic facilities in the last few years, giving rise to a general positron-emitting tracing technique. The methodological part of the present thesis involved the evaluation of the performance of storage phosphor (SP) plates, with tracers labeled with high-energy, short-lived, positron-emitting radionuclides, using homogenized tissue specimens and autoradiography with frozen brain sections. LÄS MER

4. 3. The influence of Diluents and Side Groups of the Ligands on Liquid-Liquid Extraction of Actinides and Lanthanides

   Författare :Teodora Retegan Vollmer; Chalmers tekniska högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Am; side group; radionuclides; liquid-liquid extraction; Eu; irradiation; diluents.;

   Sammanfattning : Fossil fuels are no longer a choice for energy production, both because of their diminishing availability and the bi-products of their combustion processes. A possibility to replace the fossil fuels would be utilization of nuclear power. No green-house gases are produced, but as any industry, it generates wastes. LÄS MER

5. 4. Development and Applications of some Radioanalytical Procedures: Analysis of β- and α-Emitting Radionuclides Using Radiometric and ICP-MS Detection Methods

   Författare :Henrik Ramebäck; Chalmers tekniska högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; diffusion; plutonium; 90Sr; curium; uranium; 99Tc; bentonite clay; analysis; UO2 fuel; leaching; americium; neptunium;

   Sammanfattning : Analyses of radionuclides are important in environmental monitoring and in research. However, as in the analysis of many other species, interferences may be a problem. In a-spectrometric detection, 238Pu interferes with 241Am, owing to their similar decay energies. LÄS MER

7. 5. Liquid chromatography-mass spectrometry in the analysis of radiolabelled compounds for positron emission tomography

   Författare :Benita Hyllbrant Forngren; Uppsala universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Chemistry; Kemi; Chemistry; Kemi; Analytical Chemistry; analytisk kemi;

   Sammanfattning : Methods for liquid chromatography-mass spectrometry (LC/MS) with electrospray ionization (ESI) have been developed for the determination of specific radioactivity and for metabolic studies of radiolabelled compounds used in positron emission tomography (PET). These compounds often provide an analytical challenge mainly due to their low concentrations in complex sample matrices. LÄS MER