Sökning: "detector response"

Visar resultat 21 - 25 av 48 uppsatser innehållade orden detector response.

  1. 21. On the usage of a photon counting CT detector for SPECT

    Kandidat-uppsats, KTH/Skolan för teknikvetenskap (SCI)

    Författare :Måns Andersson; [2017]
    Nyckelord :;

    Sammanfattning : This work explores the possibility of using a photon counting silicon detector developedfor Computer Tomography (CT) in Single Photon Emission Computed Tomography(SPECT) applications. This would allow for a more versatile and a much cheapersystem. The main focus is on determining the efficiency and resolution of such a system. LÄS MER

  3. 22. Design, Construction and Characterization of a Portable Fast-Neutron Detector

    Master-uppsats, Lunds universitet/Fysiska institutionen; Lunds universitet/Kärnfysik

    Författare :Nicholai Mauritzsson; [2017]
    Nyckelord :fast-neutrons; detector; plastic scintillator; NE110; neutron tracking; scintillation; spallation; european spallation source; sonnig; Physics and Astronomy;

    Sammanfattning : At European Spallation Source ERIC, 2 GeV proton bunches will be accelerated towards a tungsten target where spallation will occur, producing a wide neutron energy spectrum. Despite the shielding and moderators in place to stop and/or reduce their energy, a significant portion of the most energetic neutrons, called prompt neutrons, might still reach the sample position of a neutron-scattering instrument. LÄS MER

  4. 23. Monte Carlo simulation of the spatial response function of a SPECT measurement device for nuclear fuel bundles

    M1-uppsats, Stockholms universitet/Fysikum

    Författare :Emilie Dul; [2017]
    Nyckelord :Monte Carlo MCNPX Safeguards;

    Sammanfattning : The PGET device is currently being developed for partial-defect verication purposes on nuclear fuel assemblies. It Comprises CdTe detector elements in a heavy tungsten-alloy collimator, for which collimator slit openings define the field-of-view. LÄS MER

  5. 24. The Channeling Effect in Ultra-Thin dE-E Monolithic Silicon Telescopes

    Master-uppsats, Lunds universitet/Fysiska institutionen; Lunds universitet/Kärnfysik

    Författare :Fredrik Parnefjord Gustafsson; [2017]
    Nyckelord :dead-layer; Channelling; The Channeling effect; Plasma effect; Nucleosynthesis; Astrophysics; Ultra-thin silicon detectors; Inhomogenous Big Bang; MST; deadlayer; Pelletron; 8Li; cross-section; Kikuchi pattern; Physics and Astronomy;

    Sammanfattning : A new method has been proposed to study the low energy resonances of 8Li(alpha,n)11B at Ecm ≅ 0.5 MeV using dE-E Monolithic Silicon Telescopes (MSTs). Each telescope consists of five ultra-thin ∼1 µm (dE) silicon detector pads on a ∼500 µm (E) silicon detector. LÄS MER

  7. 25. Development and study of luminescent bolometers for neutrino physics

    Master-uppsats, Linnéuniversitetet/Institutionen för fysik och elektroteknik (IFE)

    Författare :Yann Gimbal-Zofka; [2017]
    Nyckelord :Neutrinoless double beta decay; bolometer; scintillating bolometer; leptogenesis; neutrino; cryostat; radioactivity;

    Sammanfattning : This Master thesis aims at designing, assembling and operating a prototypal luminescentbolometer containing a candidate with high Q-value (116Cd and 100Mo)for the study of the neutrinoless double- decay. The crystal is scintillating (with 116CdWO4 and Li2MoO4 compounds). LÄS MER