Search for dissertations about: "Radiometry"

Showing result 1 - 5 of 7 swedish dissertations containing the word Radiometry.

  1. 1. Development of sensitive EPR dosimetry methods

    University dissertation from Institutionen för medicin och hälsa

    Author : Håkan Gustafsson; Linköpings universitet.; Linköpings universitet.; [2008]
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Electron paramagnetic resonance EPR ; Formic acids; pharmacology; Lithium; Nickel; Radiometry; Rhodium; PHARMACY Pharmaceutical chemistry; FARMACI Farmaceutisk kemi;

    Abstract : Electron paramagnetic resonance (EPR) dosimetry using the well established dosimeter material alanine is a generally accepted dosimetric method for measurements of high absorbed doses. Alanine EPR dosimetry is however not sensitive enough for high precision measurements of low (< 5 Gy) absorbed doses using reasonably measurement times and small dosimeters. READ MORE

  2. 2. Surface Characterization using Radiometric and Fourier Optical Methods

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Peter Hansson; Uppsala universitet.; [2003]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Engineering physics; Radiometry; Fourier Optics; Surface Characterization; Topography; Reflectance; Color; Paper; Printing; Print quality; Gloss; Light scattering; Shape from shading; Photometric stereo; Optical motion compensation; Filtering; Wiener filter; Lamberts law; Image analysis; Image processing; Machine vision; Teknisk fysik; TECHNOLOGY Engineering physics; TEKNIKVETENSKAP Teknisk fysik;

    Abstract : This thesis treats static and dynamic surface characterization using radiometric and Fourier optical methods. A Fourier optical method has been developed for real time image processing in paper production and printing applications. READ MORE

  3. 3. Energy transport by random fields

    University dissertation from Kista : Mikroelektronik och informationsteknik

    Author : Petter Östlund; KTH.; [2001]
    Keywords : partial coherence; radiometry; energy transport;

    Abstract : .... READ MORE

  4. 4. Retrieval of ocean surface winds and currents using satellite synthetic aperture radar and infrared radiometry

    University dissertation from Kista : Mikroelektronik och informationsteknik

    Author : Gisela Carvajal; [2013]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; surface currents; infrared radiometry; synthetic aperture radar; surface winds; maximum cross correlation; wind direction;

    Abstract : This thesis focuses on the development, analysis and evaluation of methods for the retrieval of ocean surface winds with synthetic aperture radar (SAR) and surface currents with infrared (IR) radiometer sensors. The SAR wind speed retrievals are based on geophysical model functions using wind directions obtained with two approaches. READ MORE

  5. 5. Measuring and modelling variations in the distribution of atmospheric water vapour using GPS

    University dissertation from Kista : Mikroelektronik och informationsteknik

    Author : Tobias Nilsson; [2008]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Global Positioning System GPS ; Microwave Radiometry; Water Vapour; Climate; Atmospheric Turbulence;

    Abstract : Turbulence introduce variations in the refractive index of air, which in turn result in fluctuations in the phase and amplitude of radio signals propagating through the atmosphere. Most important are the variations due to fluctuations in the water vapour field. READ MORE