A5052973970- Nuclear physics research studies
- Atomic and Molecular Physics
- Astronomical and nuclear sciences
- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- X-ray Spectroscopy and Fluorescence Analysis
- Nuclear Physics and Applications
- Quantum Chromodynamics and Particle Interactions
- Electron and X-Ray Spectroscopy Techniques
- Particle Detector Development and Performance
- Particle physics theoretical and experimental studies
- Nuclear reactor physics and engineering
University of the Western Cape
2020-2022
National Research Foundation
2020-2022
University of Liverpool
2015-2021
University of Jyväskylä
2020-2021
University of Oulu
2019
Argonne National Laboratory
2019
Slovak Academy of Sciences
2019
University of the West of Scotland
2019
Daresbury Laboratory
2019
University of Padua
2019
Employing the recoil ion transport unit (RITU) and a fusion-evaporation reaction, $\ensuremath{\alpha}$ decay of $^{211}\mathrm{Pa}$ has been identified via implantation-decay correlation technique through observation chains up to four consecutive decays. An $\ensuremath{\alpha}$-particle energy half-life 8320(40) keV $3.{8}_{\ensuremath{-}1.4}^{+4.6}$ ms, respectively, were measured, corresponding favored decay. In addition, more precise $\ensuremath{\alpha}$-decay properties...
The SPEDE conversion electron spectrometer will be combined with the Miniball germanium detector array for in-beam and γ-ray spectroscopy radioactive ion beams.SPEDE primarily employed in Coulomb excitation experiments at HIE-ISOLDE, CERN.
The α decay of Th222 populating the low-lying Jπ=3− state, and also a proposed 1− in Ra218 has been observed. observations suggest an excitation energy 853 keV for which is 60 above 3− state. hindrance factors these decays give possible boundary to region ground-state octupole deformation light-actinide nuclei. relative positions Jπ=1− states they are produced by octupole-vibrational mechanism, as opposed clustering or rotations reflection-asymmetric octupole-deformed shape.Received 12...
Background: The Hoyle state is the archetypal $\ensuremath{\alpha}$-cluster which mediates $3\ensuremath{\alpha}$ reaction to produce $^{12}\mathrm{C}$ and of great interest for both nuclear structure astrophysics. Recent theoretical calculations predict a breathing-mode excitation at ${E}_{x}\ensuremath{\approx}9$ MeV. Its observation hindered by presence multiple broad states potential interference effects. An analysis with Gaussian line shapes measurements Research Center Nuclear Physics...
An analysis technique has been developed in order to mitigate energy summing due sequential short-lived α decays from nuclei implanted into a silicon detector. Using this technique, α-decay spectroscopy of the N=130 isotones 218Ra (Z=88) and 220Th (Z=90) performed. The energies particles emitted 218Ra→214Rn 220Th→216Ra ground-state-to-ground-state have measured be 8381(4) keV 8818(13) keV, respectively. half-lives ground states 25.99(10) μs 10.4(4) μs, daughters, 214Rn 216Ra, 259(3) ns...
The SPectrometer for Electron DEtection (SPEDE) has been constructed in-beam nuclear structure studies using radioactive ion beams.SPEDE employs a silicon detector detecting conversion electrons.It is designed to be used in conjunction with the MINIBALL spectrometer at HIE-ISOLDE, CERN.
We have identified an isomeric state in $^{201}\mathrm{Fr}$ for which we propose a spin and parity of $13/{2}^{+}$, interpret it as arising from the $\ensuremath{\pi}({i}_{13/2})$ configuration. A half-life 720(40) ns was measured, corresponding to $B(M2)=0.17(2)$ W.u., good agreement with those other $13/{2}^{+}\ensuremath{\rightarrow}9/{2}^{\ensuremath{-}} [\ensuremath{\pi}({i}_{13/2})\ensuremath{\rightarrow}\ensuremath{\pi}({h}_{9/2})]$ transitions observed nuclei region. The interest...
Using a fusion-evaporation reaction and gas-filled recoil separator, an isomeric state $[{T}_{\frac{1}{2}}=83(8)\phantom{\rule{4pt}{0ex}}\ensuremath{\mu}\mathrm{s}]$ with most likely spin parity of ${\frac{13}{2}}^{+}$ has been identified in $^{211}\mathrm{Th}$. The is mainly depopulated via hindered internal $M2$ transition [$B(M2)=0.0025(5)$ W.u.], but also weak $\ensuremath{\alpha}$-decay branch 4(3)% was observed. present observations fit well to the systematic pattern set by previously...
Abstract A projectile Coulomb-excitation experiment was performed at the radioactive ion beam facility HIE-ISOLDE CERN. The 140 Nd and 142 Sm ions were post accelerated to energy of 4.62 MeV/A impinged on a 1.45 mg/cm 2 -thin 208 Pb target. γ rays depopulating Coulomb-excited states recorded by HPGe-array MINIBALL. scattered charged particles detected double-sided silicon strip detector in forward direction. Experimental -ray intensities used for determination electromagnetic transition...