Now showing items 115-134 of 170

  • (p.n.) Reactions on 59co in the intermediate energy range 

    Bester, P.J (University of the Western Cape, 1992)
    Detailed theoretical investigations [Chi80,Mos82,Kle85] of (p,n) and (p,p') data indicate that the reaction mechanisms operative at intermediate energies and for energy losses up to several tens of MeV are predominantly ...
  • Photo-physical properties of lead-tin binary Perovskite thin films 

    Mabiala, Floyd Lionel (University of Western Cape, 2021)
    Organic-inorganic lead-based perovskite has exhibited great performance in the past few years. However, the lead (Pb) embedded in those compounds is a significant drawback to further progress, due to its environmental ...
  • Plasma characterisation of an electron cyclotron resonance ion source by means of x-ray spectroscopy 

    Sakildien, Muneer (University of the Western Cape, 2012)
    The ultimate aim of any multiply-charged ion source, like the Electron Cyclotron Resonance Ion Source, ECRIS, is the production of multiply-charged ions, in sufficiently large quantities. These multiplycharged ions, in the ...
  • Point source simulations and Foreground cleaning techniques for HI intensity mapping 

    Ngobese, Sibonelo (University of the Western Cape, 2018)
    We created a full sky point source catalogue at frequencies around 1 GHz, including the intensity, polarisation, rotation measure and spectral index of the point source. These values were matched to data where available ...
  • Polarizability effects due to low-energy enhancement of the gamma-strength function 

    Ngwetsheni, Cebo (University of the Western Cape, 2018)
    Physics is the study of natural phenomena. Nuclear physicists have since the discovery of the nucleus been working on understanding its dynamics. The nuclear chart, analogous to the periodic table of elements, is illustrated ...
  • Post-deposition doping of silicon nanowires 

    Slinger, Jane Bronwyn (University of the Western Cape, 2018)
    Silicon nanowires (Si NWs) continue to demonstrate superior properties to their bulk counterparts, with respect to their morphological and electrical transport properties for the use in photovoltaic (PV) applications. ...
  • Pre-equilibrium cross section calculations with a realistic effective nucleon-nucleon interaction 

    Karriem, Zainuddin (University of the Western Cape, 1995)
    The principle aim of this work is to improve the way in which pre-equilibrium double differential cross-sections are currently calculated [1, 2, 3, 4]. The theoretical basis for these calculations is the Multistep Direct ...
  • Probing the large-scale structure of the universe with correlation functions 

    Matshawule, Siyambonga Donald (University of the Western Cape, 2014)
    In this project we explore a new statistical package called KSTAT that computes the 2PCF and higher order correlation functions, such as the 3PCF, on BOSS, making use of high performance computing facilities to improve ...
  • Probing the primordial Universe using the SKA in combination with other cosmological surveys 

    Matthewson, William (University of the Western Cape, 2019)
    Next-generation surveys of the large-scale structure of the Universe will be of great importance in allowing us to extract invaluable information about the nature of the Universe and the physical laws that govern it, at ...
  • Production of Li, Be and B nuclei in the interaction of 12C with 12C at incident energies of 200 and 400 MeV 

    Mira, Joele Paulus (University of the Western Cape, 2008)
    The objective of this project is to study the production of Li, Be and B isotopes emitted in the interaction of 12C with 12C at incident energies of 200 and 400 MeV.The energies of these produced fragments were measured ...
  • Radio-optical analysis of extended radio sources in the first look survey field 

    Hons, Claudio Moises Paulo (2010)
    I combine 610 MHz Giant Metrewave Radio Telescope (GMRT) data, 1.4 GHz Very Large Array (VLA) data and 1.4 GHz Westerbork Synthesis Radio Telescope (WSRT) observations, encompassing a ∼ 4 square degree field (sq. deg. ...
  • Radiometric study of soil: the systematic effects 

    Joseph, Angelo Daniel (University of the Western Cape, 2007)
    The natural 238U, 232Th and 40K radioactive content of vineyard soil was measured with an in-situ gamma-ray detector. The activity concentrations measured with the in-situ detector are normalized using the laboratory-determined ...
  • Radon escape from water 

    Mvelase, Mashinga Johannes (University of the Western Cape, 2010)
    This thesis aims to measure the rate of radon loss from water in a systematic way. The dependence on surface area, temperature and concentration will be investigated. The experiments were done at UWC by creating radon using ...
  • Radon exhalation of building materials 

    Wentzel, Farrel Sidney (University of the Western Cape, 2018)
    Public concern about all radiation and radon exhalation from building materials has been highlighted recently. The purpose of this study is to address this public concern and to investigate the contribution of building ...
  • Radon exhalation studies for applications in low background environments. 

    Goitseona, Ramonnye .J; Ramonnye, Goitseona. J (University of the Western Cape, 2022)
    Neutrinoless double beta decay (0 ) is a rare process that is yet to be observed. Observation of neutrinoless double beta decays would imply lepton number violation, and that the neutrino is its own antiparticle ...
  • Radon exhalation studies for applications in low background environments. 

    Ramonnye, Goitseona. J (University of the Western Cape, 2023)
    Neutrinoless double beta decay (0νββ) is a rare process that is yet to be observed. Observation of neutrinoless double beta decays would imply lepton number violation, and that the neutrino is its own antiparticle (a Majorana ...
  • Radon in the Cango Caves 

    Nemangwele, Fhulufhelo (University of the Western Cape, 2005)
    Radon is a naturally occurring radioactive element in the 238U decay series that is found in high concentrations in certain geological formations such as Caves. Exposure to high concentrations of radon has been positively ...
  • Reconstruction of the ionization history from 21cm maps with deep learning 

    Mangena (University of the Western Cape, 2020)
    Upcoming and ongoing 21cm surveys, such as the Square Kilometre Array (SKA), Hydrogen Epoch of Reionization Array (HERA) and Low Frequency Array (LOFAR), will enable imaging of the neutral hydrogen distribution on ...
  • Redshift-space distortions as a probe of dark energy 

    Gouws, Liesbeth-Helena (University of Western Cape, 2014)
    We begin by finding a system of differential equations for the background and linearly perturbed variables in the standard, ɅCDM model, using the Einstein Field Equations, and then solving these numerically. Later, we ...
  • A relativistic analysis of proton-induced knockout reactions from oxygen isotopes with direct and inverse kinematics. 

    Motimele, Kanting Evidence (University of the Western Cape, 2020)
    In this study a complete set of exclusive (~p; 2p) polarization transfer observables of closed-shell oxygen isotopes are calculated using both direct and inverse kinematics using the relativistic plane wave impulse app ...