A5070584404- Nuclear physics research studies
- Solar and Space Plasma Dynamics
- Astro and Planetary Science
- Ionosphere and magnetosphere dynamics
- Geomagnetism and Paleomagnetism Studies
- Nuclear Physics and Applications
- Magnetic confinement fusion research
- Gamma-ray bursts and supernovae
- Particle accelerators and beam dynamics
- Superconducting Materials and Applications
- Radiopharmaceutical Chemistry and Applications
- Advanced NMR Techniques and Applications
- Laser-induced spectroscopy and plasma
- Inorganic Fluorides and Related Compounds
- X-ray Spectroscopy and Fluorescence Analysis
- Laser-Plasma Interactions and Diagnostics
- Astronomical and nuclear sciences
- Quantum Chromodynamics and Particle Interactions
- Electron and X-Ray Spectroscopy Techniques
- Planetary Science and Exploration
- Geology and Paleoclimatology Research
- Advanced Electron Microscopy Techniques and Applications
- Earthquake Detection and Analysis
- Medical Imaging Techniques and Applications
- Space Science and Extraterrestrial Life
Johns Hopkins University Applied Physics Laboratory
2024
University of Oregon
2020-2024
University of Washington
2011
TRIUMF
2009-2011
Mary Bird Perkins Cancer Center
2011
Lawrence Livermore National Security
2011
Yale University
2009-2010
University of Manitoba
2010
Argonne National Laboratory
2003-2010
McGill University
2010
The abrupt brightening of an Energetic Neutral Atom (ENA) blob or cloud has been interpreted as plasma injection in the Saturnian magnetosphere (termed ENA herein).&#160; Morphologically, there appears to be two types brightening: (1) a large usually seen at r > 10-12 Rs (Rs = 60,268 km) midnight postmidnight region; (2) smaller < around 21-03 magnetic local time (MLT).&#160; Among many radio waves observed Saturn, type 2 injections correlate best with 5 kHz narrowband...
Short-lived isomers in fission fragments following bombardment of 45-MeV $^{6}\mathrm{Li}$ on $^{232}\mathrm{Th}$ were examined. Isomers the $A~95,122,$ and 132 mass regions observed. New isomeric decays observed $^{121}\mathrm{In}$ [${T}_{1/2}=17(2) \ensuremath{\mu}$s], $^{123}\mathrm{In}$ (${T}_{1/2}\ensuremath{\gtrsim}100 \ensuremath{\mu}$s), $^{125}\mathrm{Sb}$ [${T}_{1/2}=25(4) \ensuremath{\mu}$s]. These are suggested to arise from...
Abstract We investigate the unique magnetosphere of Uranus and its interaction with solar wind. Following work Masters (2014), https://doi.org/10.1002/2014ja020077 others, we developed validated a simple yet valuable illustrative model Uranus' offset, tilted, rapidly‐spinning magnetic field magnetopause (nominal fit to Voyager‐2 inbound crossing point) in three‐dimensional space. With this model, investigated details seasonal interplanetary (IMF) orientation dependencies dayside flank...
Abstract Jupiter's magnetosphere exhibits notable distinctions from the terrestrial magnetosphere. The structure and dynamics of dawnside can be characterized as a competition between internally driven sunward flow solar wind‐driven tailward flow. During prime mission, Juno acquired extensive data dawn to midnight, sampling magnetodisc higher latitude regions. Numerical moments Jovian Auroral Distributions Experiment (JADE‐I) plasma (ion) instrument revealed mid‐latitude region...
Abstract The solar wind interaction with planetary magnetospheres dictates the mechanism through which energy is transported across systems. magnetohydrodynamic plasma description suggests that conditions in outer system encourage magnetopause boundaries at Uranus and Neptune to be more Kelvin‐Helmholtz unstable, however, no quantitative assessment has been performed. To characterize viscous Neptune, we create an analytical model determine where Instabilities (KHIs) may form along their...
Abstract Geomagnetic pole reversals occur frequently throughout geologic history, although one has not yet occurred in recorded time. Magnetohydrodynamic models of Earth's core have revealed that during a reversal, the magnetic dipole moment disappears, leaving higher‐order moments. Previous research examined quadrupole field topologies and quantitatively specified equators those but did fully examine charged particle drift motion stability inner magnetosphere. closed magnetosphere is...
Abstract A mission to Jupiter's moon Io, the most volcanically active body in solar system, was suggested as a priority for New Frontiers program 2013 Planetary Science Decadal Survey. We present Frontiers–class concept, Vulcan, that designed an educational exercise through Jet Propulsion Laboratory’s 2022 Summer School. Vulcan would leverage instrument suite consisting of wide- and narrow-angle cameras, thermal infrared spectrometer, two fluxgate magnetometers, ion electron electrostatic...
Particle gamma-ray angular correlation measurements have been used to study the spin alignment and magnetic-substate population parameters for 2+1 (4.443 MeV) state in 12C, populated 12C(12C,12C[0+2])12C(2+1) inelastic scattering reaction vicinity of a prominent, narrow peak excitation function. The data show strong with orbital momentum, suggest that cross section corresponds 14+ resonance at Ec.m.=28.0 MeV. This energy is close where also observed 0+1+0+2 A comparison between these two...
Hydrodynamic simulations of classical novae on ONe white dwarfs predict substantial production 22 Na.Observation Na decay should be correlated with the corresponding nova because half life is only 2.6 years.The 1275-keV gamma ray from β is, therefore, an excellent diagnostic for phenomenon and a long-sought target gamma-ray telescopes.Nova determine maximum Na-detection distance to < 1 kpc INTEGRAL spectrometer SPI, consistent its non-observation date.However, model estimates are strongly...
Models of astronomical phenomena require a number nuclear physics inputs to characterize the contribution these events production observed elements.Masses and excitation energy levels, spins, partial total decay widths states are particularly important.Reported here mass measurements 22 Mg 26 Si which required understand novae (or unobserved) galactic abundances Al Na.A description Canadian Penning trap spectrometer Yale spectrograph were used determine masses is presented followed by brief...