A5033267576- Particle physics theoretical and experimental studies
- Particle Detector Development and Performance
- Quantum Chromodynamics and Particle Interactions
- Nuclear physics research studies
- High-Energy Particle Collisions Research
- Radiation Detection and Scintillator Technologies
- Nuclear Physics and Applications
- Particle accelerators and beam dynamics
- Particle Accelerators and Free-Electron Lasers
- Superconducting Materials and Applications
- Electron and X-Ray Spectroscopy Techniques
- Quantum, superfluid, helium dynamics
- High-pressure geophysics and materials
- Digital Imaging for Blood Diseases
- Radiation Therapy and Dosimetry
- Dark Matter and Cosmic Phenomena
- X-ray Spectroscopy and Fluorescence Analysis
- Atomic and Molecular Physics
- Atomic and Subatomic Physics Research
- Pulsars and Gravitational Waves Research
- Cold Atom Physics and Bose-Einstein Condensates
- Advanced NMR Techniques and Applications
- Graphite, nuclear technology, radiation studies
University of Manitoba
2018-2024
Virginia Tech
2022
Thomas Jefferson National Accelerator Facility
2022
We report a precision measurement of the parity-violating asymmetry $A_{PV}$ in elastic scattering longitudinally polarized electrons from $^{208}$Pb. measure $A_{PV}=550\pm 16 {\rm (stat)}\pm 8\ (syst)}$ parts per billion, leading to an extraction neutral weak form factor $F_W(Q^2 = 0.00616\ GeV}^2) 0.368 \pm 0.013$. Combined with our previous measurement, extracted neutron skin thickness is $R_n-R_p=0.283 0.071$~fm. The result also yields first significant direct interior density...
We report a precise measurement of the parity-violating (PV) asymmetry A_{PV} in elastic scattering longitudinally polarized electrons from ^{48}Ca. measure A_{PV}=2668±106(stat)±40(syst) parts per billion, leading to an extraction neutral weak form factor F_{W}(q=0.8733 fm^{-1})=0.1304±0.0052(stat)±0.0020(syst) and charge minus F_{ch}-F_{W}=0.0277±0.0055. The resulting neutron skin thickness R_{n}-R_{p}=0.121±0.026(exp)±0.024(model) fm is relatively thin yet consistent with many model...
We report precision determinations of the beam-normal single spin asymmetries (A_{n}) in elastic scattering 0.95 and 2.18 GeV electrons off ^{12}C, ^{40}Ca, ^{48}Ca, ^{208}Pb at very forward angles where most detailed theoretical calculations have been performed. The first measurements A_{n} for ^{40}Ca ^{48}Ca are found to be similar that consistent with expectations thus demonstrating validity nuclei Z≤20. also two new momentum transfers (Q^{2}) extending previous measurement. Our data...
The aim of this study was to retire the risk maintaining integrity S2-glass reinforced CTD-403 (a cyanate ester resin) that is exposed radiation and elevated temperature over life MOLLER experiment in experimental Hall A at Jefferson Lab. In paper, shear strength flexural modulus irradiated specimens were measured 65 °C (the magnets are operate less than °C) under two scenarios: vacuum gaseous nitrogen. testing method Short-Beam Shear (SBS) test according ASTM D2344. neutrons gamma-rays up...
The aim of this article is to develop a risk management procedure, which could be applied the magnet design process, for both superconducting and normal magnets at Jefferson Laboratory (JLab). This procedure allowed us identify key risks each critical phases propose procedures, tests, checks mitigate risk. In article, we present qualitative quantitative commonly referred "failure modes effects analysis." As part calculated priority number (RPN) activity identified most activities proposed...