S. Jongile
A5054198295- Nuclear physics research studies
- Atomic and Molecular Physics
- Nuclear Physics and Applications
- Astronomical and nuclear sciences
- X-ray Spectroscopy and Fluorescence Analysis
- Muon and positron interactions and applications
- Particle accelerators and beam dynamics
- Advanced Chemical Physics Studies
- Quantum Chromodynamics and Particle Interactions
- Gamma-ray bursts and supernovae
- Rare-earth and actinide compounds
- Ion-surface interactions and analysis
- Superconducting Materials and Applications
- Dark Matter and Cosmic Phenomena
- Nuclear reactor physics and engineering
- Mass Spectrometry Techniques and Applications
Stellenbosch University
2019-2024
iThemba Laboratory
2019-2024
National Research Foundation
2019-2022
Pandora (United States)
2022
University of Zululand
2018-2021
University of the Western Cape
2018
Background: In highly deformed nuclei, there is a noticeable coupling of the isoscalar giant monopole resonance (ISGMR) and K=0 component quadrupole (ISGQR), which results in double peak structure (IS0) strength (a narrow low-energy deformation-induced main broad ISGMR part). The energy low-lying IS0 sensitive to both incompressibility modulus K∞ between (IS2) strength. Purpose: This study aims investigate two-peaked prolate Mg24 oblate Si28 nuclei identify among variety density functionals...
A comprehensive systematic study is made for the collective β and γ bands in even-even isotopes with neutron numbers N=88 to 92 proton Z=62(Sm) 70 (Yb). Data, including excitation energies, B(E0) B(E2) values, branching ratios from previously published experiments are collated new data presented first time this study. The experimental compared calculations using a five-dimensional Hamiltonian (5DCH) based on covariant density functional theory (CDFT). realistic potential quadrupole shape...
The structure of $^{33}\mathrm{Si}$ was studied by a one-neutron knockout reaction from $^{34}\mathrm{Si}$ beam at 98.5 MeV/u incident on $^{9}\mathrm{Be}$ target. prompt $\ensuremath{\gamma}$ rays following the de-excitation were detected using GRETINA $\ensuremath{\gamma}$-ray tracking array while residues identified an event-by-event basis in focal plane S800 spectrometer National Superconducting Cyclotron Laboratory. presently derived spectroscopic factor values, ${C}^{2}S$, for...
The spectroscopy of 62Cu is studied via the 54Cr(12C,1p3n)62Cu fusion-evaporation reaction. On basis γ−γ coincidence analysis, angular distributions from oriented states, and linear polarization measurement, three positive-parity negative-parity level sequences in are observed, including two new γ-ray transitions one level. collective structures discussed terms tilted axis cranking covariant density functional theory. Although not firmly confirmed experiment, properties a magnetic rotational...
Low- and medium-spin negative-parity bands of $^{187}\mathrm{Os}$ have been studied using the AFRican Omnipurpose Detector for Innovative Techniques Experiments (AFRODITE) array, following $^{186}\mathrm{W}(^{4}\mathrm{He},3n)^{187}\mathrm{Os}$ reaction at a beam energy 37 MeV. In current work, all previously known significantly extended three new added to level scheme. The angular distribution ratio (${R}_{\mathrm{AD}}$) polarization measurements used assign spin parity observed levels....
Photo-nuclear reactions of light nuclei below a mass $A=60$ are studied experimentally and theoretically by the PANDORA (Photo-Absorption Nuclei Decay Observation for Reactions in Astrophysics) project. Two experimental methods, virtual-photon excitation proton scattering real-photo absorption high-brilliance gamma-ray beam produced laser Compton scattering, will be applied to measure photo-absorption cross sections decay branching ratio each channel as function photon energy. Several...
Recent high-precision mass measurements and shell-model calculations [M. Brodeur et al., Phys. Rev. Lett. 108, 212501 (2012)] have challenged a longstanding explanation for the requirement of cubic isobaric multiplet equation lowest $A=9$ isospin quartet. The conclusions relied upon choice excitation energy second $T=3/2$ state in $^{9}\mathrm{B}$, which had two conflicting prior to this work. We remeasured using $^{9}\mathrm{Be}(^{3}\mathrm{He},t)$ reaction significantly disagree with most...
Background: Inelastic $\ensuremath{\alpha}$-particle scattering at energies of a few hundred MeV and very-forward angles including 0\ifmmode^\circ\else\textdegree\fi{} has been established as tool for the study isoscalar giant monopole (IS0) strength distributions in nuclei. This compressional mode nuclear excitation can be used to derive incompressibility matter.Purpose: An independent investigation IS0 nuclei across wide mass range was performed using ${0}^{\ensuremath{\circ}}$ facility...
Background: Over the past two decades high energy-resolution inelastic proton scattering studies were used to gain an understanding of origin fine structure observed in isoscalar giant quadrupole resonance (ISGQR) and isovector dipole (IVGDR). Recently, monopole (ISGMR) 58Ni, 90Zr, 120Sn, 208Pb was studied at iThemba Laboratory for Accelerator Based Sciences (iThemba LABS) by means α-particle very forward angles (including 0∘). The good energy resolution measurement revealed significant...
Background: The shape of most nuclei is described by its quadrupole deformation (showing the deviation from spherical shape) and triaxiality axial symmetry). Nuclei affected show additional collective rotational bands, called $\ensuremath{\gamma}$ that appear at low excitation energy. bands can be caused precession a nucleus with triaxial shape, but also arise small vibrations around an axially symmetric shape.Purpose: aim this work to search for new excitations in $^{187}\mathrm{Os}$...
Abstract The 50 Cr(p, γ ) 51 Mn proton capture reaction has been used to study the photon strength functions by utilizing primary gamma ray transitions from entry states discrete of known spins and parities. was conducted with 3 MV Tandetron accelerator at iThemba LABS which delivered beams 2.5 2.740, 2.760 3.0 MeV 3.675 4.498 in intervals 20-25 keV beam currents up 5 μ A. In this work employed together Average Resonance Capture method extract shape PSF Mn.
A new method was developed to produce enriched Sulfur targets with minimum loss of material. This made possible by inserting in-between two 0.5 μm Mylar foils (C10H8O4). The initial aim ensure that the reduce no more than 50% thickness within 24 hours under equivalent 10 J/cm 2 integrated energy deposition an energetic (Eb > 50 MeV) proton beam. There is material while making target, as all deposited surface area be exposed During beam irradiation, were frequently swivelled in order...
Collective structures in $^{186}\mathrm{Os}$ have been investigated through the $^{186}\mathrm{W}(^{4}\mathrm{He},4n)^{186}\mathrm{Os}$ reaction, at a beam energy of 48 MeV. The low-lying bands built on excited $0{}_{2}^{+}, 2{}_{2}^{+}$, and $4{}_{3}^{+}$ states extended up to spins ${12}^{+}, {15}^{+}$, ${8}^{+}$, respectively, number new linking transitions were identified. features collective $^{186}\mathrm{Os}$, such as level energies, are presented context systematic study neighboring...