S. H. Connell
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View article: The African Light Source: history, context and future
The African Light Source: history, context and future Open
The African Light Source (AfLS) project is now almost eight years old. This article assesses the history, current context and future of the project. There is by now considerable momentum in building the user community, including deep train…
View article: Meteorological effects on the performance of a solid-state α ― detector measuring water samples with predefined radon concentration
Meteorological effects on the performance of a solid-state α ― detector measuring water samples with predefined radon concentration Open
The current study validates an α-spectrometry method by assessing the functionality and response of a solid-state alpha detector to known Radon concentrations, outdoor weather conditions and varied sample volumes. These all have an influen…
View article: Calculation of neutron-induced radiation damage to gold and lutetium-aluminium microstructures using MCNP6.2
Calculation of neutron-induced radiation damage to gold and lutetium-aluminium microstructures using MCNP6.2 Open
Interaction of particles and photons with materials in extreme radiation environments like the nuclear reactor may lead to basic alterations in the microstructural properties of crystalline solids. These changes accumulate over time into d…
View article: Evaluation of neutron radiation damage on gold microstructure using MCNP
Evaluation of neutron radiation damage on gold microstructure using MCNP Open
The effects of radiation interaction with materials have been studied over the years on metals, semiconductors, and other alloys. The result of these interactions constitutes microstructural effects, like point defects, dislocation loops, …
View article: The Use of Computational Fluid Dynamics for Assessing Flow-Induced Acoustics to Diagnose Lung Conditions
The Use of Computational Fluid Dynamics for Assessing Flow-Induced Acoustics to Diagnose Lung Conditions Open
Pulmonary diseases are a leading cause of illness and disability globally. While having access to hospitals or specialist clinics for investigations is currently the usual way to characterize the patient’s condition, access to medical serv…
View article: The Modification of the Dynamic Behaviour of the Cyclonic Flow in a Hydrocyclone under Surging Conditions
The Modification of the Dynamic Behaviour of the Cyclonic Flow in a Hydrocyclone under Surging Conditions Open
The aim in this study was to determine how surging modifies the dynamic behaviour of the cyclonic flow in a hydrocyclone using computational fluid and granular dynamics models. The Volume-of-Fluid model was used to model the air-core forma…
View article: Activity Report of the Second African Conference on Fundamental and Applied Physics, ACP2021
Activity Report of the Second African Conference on Fundamental and Applied Physics, ACP2021 Open
The African School of Fundamental Physics and Applications, also known as the African School of Physics (ASP), was initiated in 2010, as a three-week biennial event, to offer additional training in fundamental and applied physics to Africa…
View article: Measurement of the EMC effect in light and heavy nuclei
Measurement of the EMC effect in light and heavy nuclei Open
Inclusive electron scattering from nuclear targets has been measured to extract the nuclear dependence of the inelastic cross section in Hall C at the Thomas Jefferson National Accelerator facility. Results are presented for 2H, 3He, 4He, …
View article: The African School of Fundamental Physics and Applications Activity Report 2019-2021
The African School of Fundamental Physics and Applications Activity Report 2019-2021 Open
The sixth edition of the African School of Fundamental and Applied Physics (ASP) was planned for Morocco in July 2020 and was referred to as ASP2020. Preparations were at an advanced stage when ASP2020 was postponed because of the COVID-19…
View article: Search for Higgs boson Decays to Beyond-the-Standard-Model Light Bosons in Four-Lepton Final States with the ATLAS Detector at the LHC
Search for Higgs boson Decays to Beyond-the-Standard-Model Light Bosons in Four-Lepton Final States with the ATLAS Detector at the LHC Open
Hidden sector or dark sector states appear in many extensions to the Standard Model (SM), to provide particle mediators for dark matter in the universe. A new probe of this hypothetical hidden or dark sector may have become available at th…