Publications (14)
Electrostatic Waves and Electron Heating Observed over Lunar Crustal Magnetic Anomalies
F. Chu, J. S. Halekas, Xin Cao +3
Above lunar crustal magnetic anomalies, large fractions of solar wind electrons and ions can be scattered and stream back towards the solar wind flow, leading to a number of intere…
Determining Metastable Ion Lifetime and History through Wave-Particle Interaction
F. Chu, F. Skiff
Laser-induced fluorescence (LIF) performed on metastable ions is frequently used to probe the dynamics of ground-state ion motions in many laboratory plasmas. However, these measur…
Experimental Measurements of Ion Diffusion Coefficients and Heating in a Multi-Ion-Species Plasma Shock
F. Chu, A. L. LaJoie, B. D. Keenan +3
Collisional plasma shocks generated from supersonic flows are an important feature in many astrophysical and laboratory high-energy-density plasmas. Compared to single-ion-species…
On determining the fraction of metastable ions produced by direct ionization
F. Chu, S. W. Mattingly, J. Berumen +2
Laser-induced fluorescence (LIF) is a powerful tool in studying wave-particle interactions, velocity-space diffusion and other phenomena in plasmas under the proper conditions. Ign…
The effects of crustal magnetic fields and solar EUV flux on ionopause formation at Mars
F. Chu, Z. Girazian, D. A. Gurnett +5
We study the ionopause of Mars using a database of 6,893 ionopause detections obtained over 11 years by the MARSIS (Mars Advanced Radar for Subsurface and Ionosphere Sounding) expe…
Elastic and thermodynamic properties of the shape-memory alloy AuZn
T. W. Darling, F. Chu, A. Migliori +5
The current work reports on the elastic shear moduli, internal friction, and the specific heat of the B2 cubic ordered alloy AuZn as a function of temperature. Measurements were ma…
The Effects of Solar Wind Dynamic Pressure on the Structure of the Topside Ionosphere of Mars
Z. Girazian, J. Halekas, D. D. Morgan +3
We use Mars Atmosphere and Volatile EvolutioN observations of the upstream solar wind, and Mars Express observations of ionospheric electron densities and magnetic fields, to study…
Measurement of wave-particle interaction and metastable lifetime using laser-induced fluorescence
F. Chu, F. Skiff
Extensive information, such as ion temperature and wave-particle interactions, can be obtained by direct measurement of ion distribution functions using laser-induced fluorescence…
Characterization of fast magnetosonic waves driven by compact toroid plasma injection along a magnetic field
F. Chu, S. J. Langendorf, J. Olson +5
Magnetosonic waves are low-frequency, linearly polarized magnetohydrodynamic (MHD) waves commonly found in space, responsible for many well-known features, such as heating of the s…
Variations in the Ionospheric Peak Altitude at Mars in Response to Dust Storms: 13 Years of Observations from the Mars Express Radar Sounder
Z. Girazian, Z. Luppen, D. D. Morgan +7
Previous observations have shown that, during Martian dust storms, the peak of the ionosphere rises in altitude. Observational studies of this type, however, have been extremely li…
Formation and Study of a Spherical Plasma Liner for Plasma-Jet-Driven Magneto-Inertial Fusion
A. L. LaJoie, F. Chu, A. Brown +9
Plasma-jet-driven magneto-inertial fusion (PJMIF) is an alternative approach to controlled nuclear fusion which aims to utilize a line-replaceable dense plasma liner as a repetitiv…
A Lagrangian model for laser-induced fluorescence and its application to measurements of plasma ion temperature and electrostatic waves
F. Chu, F. Skiff
Extensive information can be obtained on wave-particle interactions and wave fields by direct measurement of perturbed ion distribution functions using laser-induced fluorescence (…
Exploring the Physics of the Plasma Liner Experiment: A Multi-dimensional Study with FLASH, OSIRIS, and HELIOS
E. C. Hansen, P. Farmakis, D. Michta +5
The Plasma Liner Experiment (PLX) at Los Alamos National Laboratory (LANL) is a platform that seeks to achieve fusion via the Plasma-Jet-Driven Magneto-Inertial Fusion (PJMIF) conc…
The Dayside Ionopause of Mars: Solar Wind Interaction, Pressure Balance, and Comparisons with Venus
F. Chu, Z. Girazian, F. Duru +5
Due to the lower ionospheric thermal pressure and existence of the crustal magnetism at Mars, the Martian ionopause is expected to behave differently from the ionopause at Venus. W…