Search for dissertations about: "Position sensitive detectors"

Showing result 1 - 5 of 15 swedish dissertations containing the words Position sensitive detectors.

2. 1. Position Sensitive Detectors : Device Technology and Applications in Spectroscopy

   Author : Henrik Andersson; Hans-Erik Nilsson; Göran Thungström; Jan Linnros; Mittuniversitetet; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Position sensitive detectors; Electrical engineering; electronics and photonics; Elektroteknik; elektronik och fotonik;

   Abstract : This thesis deals with the development, processing and characterization of position sensitive detectors and, in addition, to the development of compact and cost effective spectrometers. Position sensitive detectors are used to measure, with great accuracy and speed, the position of a light spot incident on the surface. READ MORE

4. 2. Fabrication and Characterization of Photon Radiation Detectors

   Author : Claes Mattsson; Hans-Erik Nilsson; Göran Thungström; Mikael Lindeberg; Mittuniversitetet; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Thermal Detectors; Posistion Sensitive Detectors; Electronics; Elektronik;

   Abstract : This thesis involves a study the fabrication and characterization of photon radiation detectors. The focus has been to develop and improve the performance of optical measurement systems, but also to reduce their cost. The work is based on the study of two types of detectors, the position sensitive detector and the thermal detector. READ MORE

5. 3. Position-sensitive germanium detectors for gamma-ray tracking, imaging and polarimetry

   Author : Anton Khaplanov; Bo Cederwall; Araceli Lopez-Martens; KTH; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Nuclear physics; Kärnfysik;

   Abstract : Modern germanium detectors are often manufactured with two-dimensionally segmented electrical contacts. Signals induced in each segment are read out simultaneously when a photon is detected. Detailed pulse shape analysis (PSA) of these signals allows to resolve positions of individual γ-ray interactions with a precision of at least a few mm. READ MORE

6. 4. Novel computational methods for image analysis and quantification using position sensitive radiation detectors

   Author : Alejandro Sanchez Crespo; Stig A. Larsson; Magnus Dahlbom; Stockholms universitet; []
   Keywords : LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; SPET; PET; CMOS; spatial resolution; photon depth of interaction; positron annihilation; positron range; non-collinearity; scatter; attenuation; lung ventilation; lung perfusion; breast tumour; Medicine; Medicin;

   Abstract : The major advantage of position sensitive radiation detector systems lies in their ability to non invasively map the regional distribution of the emitted radiation in real-time. Three of such detector systems were studied in this thesis, gamma-cameras, positron cameras and CMOS image sensors. READ MORE

7. 5. Applications of Pulse Shape Analysis Techniques for Segmented Planar Germanium Detectors

   Author : Anton Khaplanov; Bo Cederwall; Bo Jakobsson; KTH; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Position sensitive detectors; pulse shape analysis; germanium detectors; DESPEC; ; Nuclear physics; Kärnfysik;

   Abstract : The application of pulse shape analysis (PSA) and γ-ray tracking techniques has attracted a great deal of interest in the recent years in fields ranging from nuclear structure studies to medical imaging. These new data analysis methods add position sensitivity as well as directional information for the detected γ-rays to the excellent energy resolution of germanium detectors. READ MORE