A simple model for charged particle aggregation and polarization

This chapter addresses the distortion in the free and forced oscillations of a harmonic oscillator caused by the presence of the anharmonic terms in the potential energy, a simple model related to the coupling of the longitudinal and flexural oscillations inmolecules, and two oscillators with a weak non-linear coupling (the so-called Fermi resonance). The chapter also examines non-linear resonances, the parametric resonances, drift of the orbit centre for a charged particle in the weakly inhomogeneous magnetic field, and a mechanical model of phase transitions of the second kind.

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A simple model of ion beam heated ICF targets

Laser and Particle Beams ◽

10.1017/s0263034600000318 ◽

1983 ◽

Vol 1 (3) ◽

pp. 231-239 ◽

Cited By ~ 20

Author(s):

R. G. Evans

Keyword(s):

Computer Simulation ◽

Charged Particle ◽

Simple Model ◽

Ion Beam ◽

Laser Beams ◽

Particle Beams ◽

Charged Particle Beams ◽

Hydrodynamic Behaviour ◽

Temperature And Pressure ◽

Good Agreement

A simple model is presented for the thermodynamic and hydrodynamic behaviour of solid targets heated by intense charged particle beams. The model gives the temperature and pressure generated by the beam and allows a direct comparison with the pressure generated by laser beams. The model is in good agreement with a coupled thermodynamic hydrodynamic computer simulation.

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Excitation of large amplitude wake electron oscillations in adiabatic plasma

Laser and Particle Beams ◽

10.1017/s0263034612000973 ◽

2013 ◽

Vol 31 (1) ◽

pp. 155-161 ◽

Cited By ~ 3

Author(s):

Youmei Wang ◽

M.Y. Yu ◽

Z.Y. Chen ◽

Gaimin Lu

Keyword(s):

Charged Particle ◽

Simple Model ◽

Plasma Wave ◽

Large Amplitude ◽

Plasma Waves ◽

Electron Plasma ◽

Electron Plasma Wave ◽

High Energies ◽

Wake Wave

AbstractElectron plasma waves excited and/or modified by finite objects such as laser and charged particle pulses are investigated nonperturbatively using a simple model where the driver is unaffected by the interaction. It is shown that smooth as well as sharply peaked electron plasma wake waves of large amplitude can exist. In particular, two charged pulses moving in tandem can excite a highly localized electron plasma wave without producing the expected long wake wave, a configuration that should be particularly useful for efficient trapping and acceleration of electrons to high energies.

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Quasi-bound states of a charged particle in a Quantum Well under an applied longitudinal electric field: a simple model calculation

Superlattices and Microstructures ◽

10.1016/0749-6036(88)90179-6 ◽

1988 ◽

Vol 4 (3) ◽

pp. 339-342 ◽

Cited By ~ 1

Author(s):

F. Ancilotto

Keyword(s):

Charged Particle ◽

Simple Model ◽

Electric Field ◽

Quantum Well ◽

Model Calculation ◽

Bound States ◽

Longitudinal Electric Field

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Non-linear oscillations

Exploring Classical Mechanics ◽

10.1093/oso/9780198853787.003.0021 ◽

2020 ◽

pp. 265-278

Author(s):

Gleb L. Kotkin ◽

Valeriy G. Serbo

Keyword(s):

Magnetic Field ◽

Charged Particle ◽

Simple Model ◽

Mechanical Model ◽

Inhomogeneous Magnetic Field ◽

Fermi Resonance ◽

Forced Oscillations ◽

Linear Coupling ◽

Parametric Resonances ◽

Non Linear

This chapter addresses the distortion in the free and forced oscillations of a harmonic oscillator caused by the presence of the anharmonic terms in the potential energy, a simple model related to the coupling of the longitudinal and flexural oscillations inmolecules, and two oscillators with a weak non-linear coupling (the so-called Fermi resonance). The chapter also examines non-linear resonances, the parametric resonances, drift of the orbit centre for a charged particle in the weakly inhomogeneous magnetic field, and a mechanical model of phase transitions of the second kind.

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Microtomy of spherical Al2O3 powders

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s042482010007429x ◽

1983 ◽

Vol 41 ◽

pp. 74-75

Author(s):

E.J. Jenkins ◽

D.S. Tucker ◽

J.J. Hren

Keyword(s):

Thin Film ◽

Size Range ◽

Particle Aggregation ◽

Ion Milling ◽

Thin Sections ◽

Α Phase ◽

Convenient Means ◽

Van Der Waals Attraction ◽

Negative Feature ◽

Film Substrate

The size range of mineral and ceramic particles of one to a few microns is awkward to prepare for examination by TEM. Electrons can be transmitted through smaller particles directly and larger particles can be thinned by crushing and dispersion onto a substrate or by embedding in a film followed by ion milling. Attempts at dispersion onto a thin film substrate often result in particle aggregation by van der Waals attraction. In the present work we studied 1-10 μm diameter Al2O3 spheres which were transformed from the amprphous state to the stable α phase.After the appropriate heat treatment, the spherical powders were embedded in as high a density as practicable in a hard EPON, and then microtomed into thin sections. There are several advantages to this method. Obviously, this is a rapid and convenient means to study the microstructure of serial slices. EDS, ELS, and diffraction studies are also considerably more informative. Furthermore, confidence in sampling reliability is considerably enhanced. The major negative feature is some distortion of the microstructure inherent to the microtoming operation; however, this appears to have been surprisingly small. The details of the method and some typical results follow.

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