Sökning: "dead-layer"

Hittade 5 uppsatser innehållade ordet dead-layer.

  1. 1. Characterisation of the LYCCA Double-Sided Silicon Strip Detectors

    Kandidat-uppsats, Lunds universitet/Fysiska institutionen; Lunds universitet/Partikel- och kärnfysik

    Författare :Marwan Mohamed; [2023]
    Nyckelord :DSSD LYCCA HISPEC FAIR Characterisation; Physics and Astronomy;

    Sammanfattning : The goal of this thesis work is to describe the methods used and perform comprehensive testing of the Double-Sided Silicon-Strip Detectors (DSSD) prior to their implementation in the Lund-York-Cologne CAlorimeter (LYCCA) detector. In the framework of this project, the DSSD characterisation was carried out to ensure specification compliance prior to their "in-kind contribution" delivery to the HISPEC experiment at the NUSTAR collaboration. LÄS MER

  3. 2. Determination of the homogeneity of the detection efficiency of silicon detectors using light ions

    Kandidat-uppsats, Uppsala universitet/Tillämpad kärnfysik

    Författare :Hamarstedt Ellen; [2022]
    Nyckelord :Nuclear physics; silicon detectors; kärnfysik; kiseldetektor; kiseldetektorer;

    Sammanfattning : In this project, the homogeneity of the detection efficiency of two silicon detectors were examined using a radioactive alpha-source, 241Am, to study the surfaces of the detectors by exposing a small part of the detector at a time. By then observing the variations of the deposited alpha-energies at different positions on the detector, one can map the differences in the homogeneity of the surface. LÄS MER

  4. 3. Dead layer determination for the new implantation detector of the LUNDIUM decay station

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

    Författare :Eleftheria Kosta; [2022]
    Nyckelord :Physics and Astronomy;

    Sammanfattning : The Nuclear Structure Group in Lund, focuses on nuclear spectroscopy of decays of rare isotopes. A new decay station, called LUNDIUM, is currently being built, which will involve silicon and germanium detectors for the study of these nuclei. This thesis focuses on the characterization of one of the new silicon detectors, the implantation one. LÄS MER

  5. 4. 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. 5. Commissioning of the ΔE-E LYCCA detector array

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

    Författare :Alexander Huusko; [2017]
    Nyckelord :Physics and Astronomy;

    Sammanfattning : LYCCA (Lund York Cologne CAlorimeter) is a versatile detector system which provides partial and residual energy measurements together with particle tracking and identification. The detector system consists of several different types of detectors such as DSSSDs (Double-Sided Silicon Strip Detector) and CsI(Tl) detectors. LÄS MER