T. H. Ogunbeku
A5008217281- Nuclear physics research studies
- Nuclear Physics and Applications
- Astronomical and nuclear sciences
- Neutrino Physics Research
- Atomic and Subatomic Physics Research
- Particle accelerators and beam dynamics
- Nuclear reactor physics and engineering
- Radiation Detection and Scintillator Technologies
- X-ray Spectroscopy and Fluorescence Analysis
- Atomic and Molecular Physics
- Quantum Chromodynamics and Particle Interactions
- Telecommunications and Broadcasting Technologies
- Power Line Communications and Noise
- Particle physics theoretical and experimental studies
- Advanced Neural Network Applications
- Gamma-ray bursts and supernovae
- Image and Video Quality Assessment
- Electron and X-Ray Spectroscopy Techniques
- Medical Imaging Techniques and Applications
- Advanced X-ray Imaging Techniques
Mississippi State University
2021-2024
Lawrence Livermore National Laboratory
2022-2024
National Superconducting Cyclotron Laboratory
2023
Michigan State University
2022-2023
Osun State University
2015
Excited-state spectroscopy from the first Facility for Rare Isotope Beams (FRIB) experiment is reported. A 24(2)-$\mu$s isomer was observed with FRIB Decay Station initiator (FDSi) through a cascade of 224- and 401-keV $\gamma$ rays in coincidence $^{32}\textrm{Na}$ nuclei. This only known microsecond ($1{\text{ }\mu\text{s}}\leq T_{1/2} < 1\text{ ms}$) region. nucleus at heart $N=20$ island shape inversion crossroads spherical shell-model, deformed ab initio theories. It can be represented...
In the pursuit of identifying rare two-particle events within GADGET II Time Projection Chamber (TPC), this paper presents a comprehensive approach for leveraging Convolutional Neural Networks (CNNs) and various data processing methods. To address inherent complexities 3D TPC track reconstructions, is expressed in 2D projections 1D quantities. This capitalizes on diverse modalities TPC, allowing efficient representation distinct features events, with no loss topology uniqueness....
New half-lives for exotic isotopes approaching the neutron drip-line in vicinity of N∼28 Z=12-15 were measured at Facility Rare Isotope Beams (FRIB) with FRIB decay station initiator. The first experimental results are compared to latest quasiparticle random phase approximation and shell-model calculations. Overall, consistent available theoretical descriptions suggest a well-developed region deformation below ^{48}Ca N=28 isotones. erosion Z=14 subshell closure Si is experimentally...
The first complete measurement of the β-decay strength distribution Cl281745 was performed at Facility for Rare Isotope Beams (FRIB) with FRIB Decay Station Initiator during second experiment. involved detection neutrons and γ rays in two focal planes a single experiment time. This enabled an analytical consistency extracting over large range excitation energies, including neutron unbound states. We observe rapid increase above separation energy Ar271845. interpreted to be caused by...
The level structure of $^{36}\mathrm{Al}$ has been studied via $\ensuremath{\beta}$ decay $^{36}\mathrm{Mg}$ at the Facility for Rare Isotope Beams (FRIB) and National Superconducting Cyclotron Laboratory (NSCL). A long-lived isomer in was identified which decays by to an excited state $^{36}\mathrm{Si}$. ground isomeric were found populate different energy levels results from two data sets present work complement each other. Configuration interaction calculations performed with FSU...
Results from the study of β− decay 45Cl, produced in fragmentation a 140-MeV/u 48Ca beam, are presented. The half-life for 45Clβ is measured to be 513(36) ms. and β−1n 45Cl populated excited states 45,44Ar, respectively. On basis γ-ray singles γ−γ coincidence data, schemes two daughter nuclei have been established. They compared with shell model calculations using FSU interaction. low-lying negative parity 45Ar well described by single particle (neutron) occupying orbitals near Fermi...
β− decay of very neutron-rich isotopes P and S, studied at the National Superconducting Cyclotron Laboratory using Beta Counting Station consisting a Double Sided Strip Detector surrounded by clovers detectors for observing delayed γ transitions, is reported here. β-decay half-lives neutron emission probabilities were extracted 42,43,44P 44,46S analyzing spatial temporal correlations between implants events in Si detector with further coincidence transitions. Detection rays allowed...
Background: The evolution of nuclear shell structure far from stability can be explored by identifying and measuring the properties isomers. Neutron-rich nuclei between $Z=28$ $Z=50$ closed shells have been subject recent studies which identified a number $0.1--10\phantom{\rule{0.28em}{0ex}}\ensuremath{\mu}\mathrm{s}$ isomers measured detailed spectroscopic properties.Purpose: purpose this analysis was to identify measure short-lived isomeric states populated following $\ensuremath{\beta}$...
We measured the Zn57 β-delayed proton (βp) and γ emission at National Superconducting Cyclotron Laboratory. find a half-life of 43.6±0.2 ms, βp branching ratio (84.7±1.4)%, identify four transitions corresponding to exotic β-γ-p decay mode, second such identification in fp-shell. The p/γ was used correct for isospin mixing while determining mass via isobaric multiplet equation. Previously, it uncertain as whether rp-process flow could bypass textbook waiting point Ni56 astrophysical...
In this article, ${\ensuremath{\beta}}^{\ensuremath{-}}$ decay studies of neutron-rich isotopes $^{43,45}\mathrm{S}$ performed at the National Superconducting Cyclotron Laboratory are reported. $\ensuremath{\beta}$-delayed $\ensuremath{\gamma}$ transitions were detected by an array 16 clover detectors surrounding Beta Counting Station, which consists a $40\ifmmode\times\else\texttimes\fi{}40$ double-sided silicon strip detector followed single-sided detector. $\ensuremath{\beta}$-decay...
We measured the $\beta$-delayed neutron emission from $^{25}$F for first time at Facility Rare Isotope Beams (FRIB). Using combined and $\gamma$-ray detector systems of FRIB Decay Station Initiator (FDSi), we observed $\beta$-decay transitions populating unbound states between 4.2 8 MeV in $^{25}$Ne. The experimental results led to revision half-life neutron-emission probability $^{25}$F. strength distribution extracted data agrees with shell-model predictions using USDB SDPF-M effective...
Background: Isomeric states in atomic nuclei are a sensitive probe of their underlying microscopic structure and can be used to study the evolution shell far from stability. Recent studies have identified provided detailed spectroscopy isomers neutron-rich with $Z=28\text{\ensuremath{-}}50$. odd-odd gallium isotopes been reported for all $A=72$ $A=80$ exception $^{76}\mathrm{Ga}$.Purpose: The purpose this experiment was observe short-lived isomeric vicinity $^{78}\mathrm{Ni}$.Methods:...
The presence of artifacts on the high definition television (TV) content and eventual loss digital TV signals to rain is still a major concern satellite operators, (DSTV) terrestrial providers. In this paper, present in typical DSTV signal examined practical direct-to-home (DTH) link at Osun State University, Osogbo, Nigeria (7.77°N, 4.60°E), received via EUTELSAT W4/W7 12.245 GHz. degrading effect assessed using subjective experimental approach, which based quantification ruining user’s...
Excited-state spectroscopy from the first Facility for Rare Isotope Beams (FRIB) experiment is reported. A 24(2)-$μ$s isomer was observed with FRIB Decay Station initiator (FDSi) through a cascade of 224- and 401-keV $γ$ rays in coincidence $^{32}\textrm{Na}$ nuclei. This only known microsecond ($1{\text{ }μ\text{s}}\leq T_{1/2} < 1\text{ ms}$) region. nucleus at heart $N=20$ island shape inversion crossroads spherical shell-model, deformed ab initio theories. It can be represented as...
Results from the study of $\beta^-$-decay $^{45}$Cl, produced in fragmentation a 140-MeV/u $^{48}$Ca beam, are presented. The half-life for $^{45}$Cl $\beta$-decay is measured to be 513(36) ms. $\beta^-$ and $\beta^- 1n$ decay populated excited states $^{45,44}$Ar, respectively. On basis $\gamma$-ray singles $\gamma$-$\gamma$ coincidence data, schemes two daughter nuclei have been established. They compared with shell model calculations using FSU interaction. low-lying negative parity...
Background: The appearance of isomeric states in neutron-rich nuclei can provide a wealth information on the underlying nuclear configurations as progression is made from stable to exotic nuclei. These be characterized by measuring half-lives and transition probabilities associated with their deexcitations. Recent studies Si isotopes near $N=20$ approaching $N=28$ have revealed intruder resulting multiple-particle, multiple-hole excitations across closed shell gaps. appear at low excitation...
{\beta} decay of neutron-rich isotopes 43,45 S,studied at the National Superconducting Cyclotron Laboratory is reported here. delayed {\gamma} transitions were detected by an array 16 clover detectors surrounding Beta Counting Station which consists a 40x40 Double Sided Silicon Strip Detector followed Single Detector. half-lives have been extracted for S correlating implants and decays in pixelated implant detector with further coincidence daughter nucleus. The level structure Cl expanded...