Essays about: "Scintillation"

Showing result 16 - 20 of 36 essays containing the word Scintillation.

  1. 16. Optimisation Of Ionospheric Scintillation Model Used In Radio Occultation

    University essay from Blekinge Tekniska Högskola/Institutionen för tillämpad signalbehandling

    Author : Marta Boryczko; Tomasz Dziendziel; [2016]
    Keywords : Global Positioning System; ionospheric scintillation; optimization; Radio Occultation;

    Abstract : This thesis is executed in cooperation with RUAG Space AB, which specializes in highly reliable on-board satellite equipment. The thesis focuses on the effect, which disturbs the amplitude and phase of a Global Positioning System (GPS) signal, called scintillation effect. It has a substantial impact on a GPS signal, during Radio Occultation (RO). READ MORE

  3. 17. Evaluation of differences in attenuation pattern for myocardial perfusion scintigraphy between CZT and conventional gamma cameras

    University essay from Lunds universitet/Medicinsk strålningsfysik, Lund; Lunds universitet/Sjukhusfysikerutbildningen

    Author : Elin Martinsson; [2016]
    Keywords : Medicine and Health Sciences;

    Abstract : The new CZT camera has a different technology compared to conventional scintillation gamma cameras. The CZT camera have pinholes instead of parallel hole collimators, a static gantry instead of a rotating one and detection material made of a semiconductor in- stead of a scintillation crystal. READ MORE

  4. 18. 3D Scintillation Positioning Method in a Breast-specific Gamma Camera

    University essay from KTH/Skolan för teknik och hälsa (STH)

    Author : Beien Wang; [2015]
    Keywords : ;

    Abstract : In modern clinical practice, gamma camera is one of the most important imaging modalities for tumour diagnosis. The standard technique uses scintillator-based gamma cameras equipped with parallel-hole collimator to detect the planar position of γ photon interaction (scintillation). READ MORE

  5. 19. 3D Scintillation Positioning Method in a Breast-specific Gamma Camera

    University essay from KTH/Medicinsk teknik

    Author : Beien Wang; [2015]
    Keywords : gamma camera; breast imaging; monte carlo simulation; depth of interaction;

    Abstract : In modern clinical practice, gamma camera is one of the most important imaging modalities for tumour diagnosis. The standard technique uses scintillator-based gamma cameras equipped with parallel-hole collimator to detect the planar position of γ photon interaction (scintillation). READ MORE

  6. 20. Compton Imaging with Scintillators in a Virtual Geant4 Space

    University essay from Lunds universitet/Fysiska institutionen; Lunds universitet/Kärnfysik

    Author : Tim Almqvist; [2015]
    Keywords : Compton scattering; compton imaging; gamma imaging; imaging; scintillator; scintillators; scintillator detectors; gamma camera; Compton camera; Geant4; simulation; simulations; detector simulations; Monte-Carlo; Physics and Astronomy;

    Abstract : In this study the Geant4 toolkit has been used to perform Monte Carlo simulations of relatively inexpensive, inorganic, scintillator-based detectors. Full simulations of the optical photons produced via the scintillation process have been done in order to achieve realistic responses from the attached electro-optical sensors. READ MORE