A5052127043- Magnetic confinement fusion research
- Particle accelerators and beam dynamics
- Plasma Diagnostics and Applications
- Ionosphere and magnetosphere dynamics
- Superconducting Materials and Applications
- Gamma-ray bursts and supernovae
- Fusion materials and technologies
- Pulsars and Gravitational Waves Research
- Laser-Plasma Interactions and Diagnostics
- Neutrino Physics Research
- Astrophysics and Cosmic Phenomena
- Gyrotron and Vacuum Electronics Research
- Cosmology and Gravitation Theories
- Astrophysical Phenomena and Observations
- Solar and Space Plasma Dynamics
- Astro and Planetary Science
- Geophysics and Gravity Measurements
- Nuclear Physics and Applications
- Particle physics theoretical and experimental studies
- High-Energy Particle Collisions Research
- Advancements in Solid Oxide Fuel Cells
- High voltage insulation and dielectric phenomena
- Electromagnetic Launch and Propulsion Technology
- Particle Accelerators and Free-Electron Lasers
- Antenna Design and Analysis
Culham Centre for Fusion Energy
2006-2024
United Kingdom Atomic Energy Authority
2022-2024
Culham Science Centre
2011-2024
Princeton Plasma Physics Laboratory
2009-2019
Princeton University
2005-2017
North Carolina State University
2009-2017
Utah State University
2014-2015
Northwestern University
2000-2014
Plasma Technology (United States)
1994-2012
Fusion Academy
1994-2012
view Abstract Citations (710) References (40) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS The r-Process and Neutrino-heated Supernova Ejecta Woosley, S. E. ; Wilson, J. R. Mathews, G. Hoffman, D. Meyer, B. As a neutron star is formed by the collapse of iron core massive star, its Kelvin-Helmholtz evolution characterized release gravitational binding energy as neutrinos. interaction these neutrinos with heated material above generates hot bubble in an...
It is found that just below nuclear saturation density more stable forms of dense matter exist than the near-spherical nuclei or bubbles customarily assumed. Because large effect Coulomb lattice energy, cylindrical and planar geometries can occur, both as bubbles. suggested in order to approximate complicated kinds short-range order, dimensionality should be regarded a continuous variable ranging from $d=3$ (spheres) $d=1$ (planes). The dependence $d$ on illustrated, its models discussed.
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The National Spherical Torus Experiment (NSTX) is being built at Princeton Plasma Physics Laboratory to test the fusion physics principles for spherical torus concept MA level. NSTX nominal plasma parameters are R0 = 85 cm, a 67 R/a ⩾ 1.26, Bt 3 kG, Ip 1 MA, q95 14, elongation κ ⩽ 2.2, triangularity δ 0.5 and pulse length of up 5 s. heating/current drive tools high harmonic fast wave (6 MW, s), neutral beam injection (5 80 keV, s) coaxial helicity injection. Theoretical calculations predict...
We describe a numerical method for calculating the (3+1)-dimensional general relativistic hydrodynamics of coalescing neutron-star binary system. The field equations are solved at each time slice with spatial three-metric chosen to be conformally flat. Against this solution equations, hydrodynamic variables and gravitational radiation allowed respond. signal is derived via multipole expansion metric perturbation hexadecapole ($l=4$) order including both mass current moments correction...
Electrolysis was carried out at 700−800 °C using solid oxide electrochemical cells with H2O−CO2−H2 mixtures the Ni-YSZ cathode and air LSCF-GDC anode. (YSZ = 8 mol %, Y2O3-stabilized ZrO2, GDC Ce0.9Gd0.1O1.95, LSCF La0.6Sr0.4Co0.2Fe0.8O3). The cell electrolysis performance decreased only slightly for H2O−CO2 compared to H2O much better than pure CO2 electrolysis. Mass spectrometer measurements showed increasing consumption of production H2 CO current density. Electrolyzers operated on 25%...
Probe methods were used to investigate whether the distribution of attention local or global structure a stimulus affects detectability different spatial frequencies. Four experiments are reported in which threshold probe gratings frequencies was measured while subjects analyzed either information from display. A relative shift low and high observed. Low facilitated during processing and/or processing.
We use heavy element nucleosynthesis from supernovae to probe the mixing of ${\ensuremath{\nu}}_{\mathit{e}}$ with ${\ensuremath{\nu}}_{\mathrm{\ensuremath{\tau}}}$ (or ${\ensuremath{\nu}}_{\mathrm{\ensuremath{\mu}}}$) possessing cosmologically significant masses (1 100 eV). conclude that ${\ensuremath{\nu}}_{\mathrm{\ensuremath{\tau}}}$(${\ensuremath{\nu}}_{\mathrm{\ensuremath{\mu}}}$)-${\ensuremath{\nu}}_{\mathit{e}}$ vacuum angle must satisfy...
view Abstract Citations (222) References (29) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS A numerical study of nonspherical black hole accretion. I Equations and test problems Hawley, J. F. ; Smarr, L. Wilson, R. The authors have developed a 2D axisymmetric, general relativistic code to inviscid hydrodynamic accretion flows in fixed Kerr gravitational field. In this first several papers documenting the methods results, they describe discuss equations form...
view Abstract Citations (197) References (25) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Neutrinos from Gravitational Collapse Mayle, Ron ; Wilson, James R. Schramm, David N. Detailed calculations are made of the neutrino spectra emitted during gravitational collapse events (Type II supernovae?). Those aspects signal which relatively independent model and those sensitive to details discussed. The easier detect high-energy tail neutrinos has been...
Future detection of a supernova neutrino burst by large underground detectors would give important information for the explosion mechanism collapse-driven supernovae. We studied statistical analysis future nearby using numerical model and realistic Monte-Carlo simulations Super-Kamiokande detector. mainly discuss detectability signatures delayed in time evolution $\anue$ luminosity spectrum. For at 10 kpc away from Earth, we find that not only signature is clearly discernible, but also...
view Abstract Citations (159) References (27) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Resonant Neutrino Oscillations and Stellar Collapse Fuller, G. M. ; Mayle, R. W. Wilson, J. Schramm, D. N. The Mikheyev-Smirnov-Wolfenstein mechanism for resonant amplification of neutrino oscillations is shown to occur in collapsing presupernova stellar cores if there exist massive unstable neutrinos which mix with the electron neutrino. relevant mass range 200 eV...
Reversible solid oxide cells (SOCs) are potentially useful for electrical energy storage due to their good scalability, but have not been seriously considered concerns over round-trip efficiency. Here we propose an SOC chemistry where the fuel cycles between H2O–CO2-rich and CH4–H2-rich gases. The unique feature is formation of CH4 during electrolysis, a less endothermic process than usual H2- or CO-forming reactions, enabling improved Thermodynamic calculations preliminary experiments show...
view Abstract Citations (84) References (22) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Planar numerical cosmology. II - The difference equations and tests Centrella, J. ; Wilson, R. Following Centrella Wilson's (1983) method for the evolution of inhomogeneous planar cosmological models on a computer, in course whose presentation this special gauge's simplification was discussed, attention is given to differencing techniques that must be applied order...
view Abstract Citations (168) References (12) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS A Numerical Study of Gravitational Stellar Collapse Wilson, James R. The dynamic gravitational collapse stars mass 1.25-10 M0. is calculated in terms general relativity. Neutrino flow considerable detail to evaluate whether the energy neutrinos can produce ejection. Most evidently eject no by process neutrino transport during their even though they radiate about 10 g...
view Abstract Citations (112) References (1) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Numerical Study of Fluid Flow in a Kerr Space Wilson, James R. The equation motion perfect gas is solved on computer for several cases matter falling into black hole. In most cases, the falls hole with no appreciable heating. When material corotating metric, shock waves are formed if specific angular momentum hole, Jc/GM2, close to 1 and infalling material, /GM,...
The goal of the Lower Hybrid Current Drive (LHCD) system on Alcator C-Mod tokamak [Hutchinson et al., Phys. Plasmas 1, 1511 (1994)] is to investigate current profile control under plasma conditions relevant future experiments. Experimental observations a LHCD "density limit" for are presented in this paper. Bremsstrahlung emission from relativistic fast electrons core drops suddenly above line averaged densities 1020 m−3 (ω/ωLH∼3–4), well below density limit previously observed other...