WorldCat Identities

Bernstein, Ira B.

Overview
Works: 38 works in 55 publications in 1 language and 135 library holdings
Roles: Author
Classifications: QC485.8.S5,
Publication Timeline
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Most widely held works by Ira B Bernstein
Linear stability of self-similar flow by D. L Book( Book )

3 editions published in 1978 in English and held by 50 WorldCat member libraries worldwide

Improved calculations on cascade shower theory by Ira B Bernstein( Book )

5 editions published between 1950 and 1951 in English and held by 7 WorldCat member libraries worldwide

A rapid numerical procedure for determining axisymmetric transverse electric electromagnetic fields via boundary integrals by Ira B Bernstein( Book )

3 editions published in 1988 in English and held by 6 WorldCat member libraries worldwide

An important engineering problem is the determination of the electromagnetic fields in microwave systems, for example tapered waveguides, horns, scatterers, close cavities, and open resonators. Consider the case of axisymmetric transverse electric modes. Such problems for monochromatic radiation can be reduced to consideration of an elliptic partial differential equation similar to the Helmholtz equation. Methods have been developed for the direct numerical solution of the partial differential equation. Variational principles have been used to optimally determine approximate values of object of interest like reflection and transmission coefficients. An alternative approach is the reduction of the problem to consideration of an integral equation defined on the metallic walls defining the object (the boundary integral method). These have been solved for the case of scalar fields described by the Helmholtz equation. The boundary integral equation method is feasible when the Greens function is known in a computationaly convenient form, and is very often much more computationaly efficient than its competitors, particularly when the geometry is complex. The theory and effective numerical implementation are described of such a boundary integral equation approach for the case of an axisymmetric transverse electric electromagnetic field. The technique is readily generalizable to arbitrary axisymmetric fields. (JHD)
An energy principle for hydromagnetic stability problems by Ira B Bernstein( Book )

2 editions published in 1957 in English and held by 5 WorldCat member libraries worldwide

Waves in a plasma in a magnetic field by Ira B Bernstein( Book )

2 editions published in 1957 in English and held by 5 WorldCat member libraries worldwide

An energy principle for hydromagnetic stability problems by Ira B Bernstein( Book )

2 editions published in 1957 in English and held by 5 WorldCat member libraries worldwide

Kinetic theory of waves in plasmas by Ira B Bernstein( Book )

3 editions published in 1963 in English and held by 4 WorldCat member libraries worldwide

Exact non-linear plasma oscillations by Ira B Bernstein( Book )

1 edition published in 1957 in English and held by 4 WorldCat member libraries worldwide

Plasma oscillations with diffusion in velocity space by Andrew Lenard( Book )

2 editions published in 1958 in English and held by 4 WorldCat member libraries worldwide

A model of plasma oscillations in the presence of small angle collisions is presented which admits of exact analytic solution. Certain features of the true collsion terms are preserved. Namely, the effect of collisions is represented by a diffusion in velocity space, which makes the distribution function tend to the Maxwell distribution, and which conserves the number of particles. In the limit of infrequent collisions the results of Landau are recovered
Theory of Electrostatic Probes in a Low Density Plasma by Ira B Bernstein( Book )

2 editions published between 1958 and 1959 in English and held by 2 WorldCat member libraries worldwide

Ion wave instabilities by Ira B Bernstein( Book )

2 editions published between 1959 and 1960 in English and held by 2 WorldCat member libraries worldwide

Wave-Particle Interactions on Relativistic Electron Beams( Book )

2 editions published between 1980 and 1983 in English and held by 2 WorldCat member libraries worldwide

Summaries are provided on the following topics: Linearized Theory including Axial Magnetic Field; Non-Linear Theory; Quasi-Linear Theory; and Single Particle Theory for Free Electron Laser with a strong Axial Field
Stability of Self-Similar Flow. 6. Uniform Implosion of an Ablatively Driven Shell( Book )

1 edition published in 1979 in English and held by 1 WorldCat member library worldwide

The linear stability of a uniformly imploding shell, modeled as an ideal polytropic fluid, is investigated. Two types of unstable modes are found: incompressible irrotational perturbations localized at the outer surface, ascribable to Rayleigh-Taylor instability, and compressible modes, associated with convective instability. KIDDER'S (1976) result for the Rayleigh-Taylor modes is shown to hold independently of the form of the shell density profile. By means of a variational principle it is shown that the criterion for convective instability is the existence of a region within which the differential of p times rho to the negative gamma power in respect to r>0. Analytic solutions for both spatial and temporal dependence of the perturbations are presented, and the results applied to pellets imploded by the action of a laser or charged-particle beam. (Author)
Numerical simulation of tokamak electron dynamics by William Harvey Miner( Book )

1 edition published in 1981 in English and held by 1 WorldCat member library worldwide

In a tokamak, the electron distribution deviates from a Maxwellian. This is because the magnetically untrapped electrons moving parallel to the applied electric field tend to run away. Because of the presence of trapped electrons, the distribution also departs from the Chapman-Enskog solution of the weak electric field problem. Previous analytic and numerical methods have treated this distortion in the limit of vanishingly small electric fields, a vanishing small number of trapped electrons, or both. We present a numerical method which relaxes these limitations, and illustrate the distribution functions which result from it. (Author)
Runaway electrons in an ideal Lorentz plasma by Ira B Bernstein( Book )

1 edition published in 1963 in English and held by 1 WorldCat member library worldwide

On the explosion of a supernova into the interstellar magnetic field -- Part II by Ira B Bernstein( Book )

1 edition published in 1965 in English and held by 1 WorldCat member library worldwide

Wave-Particle Interaction on Relativistic Electron Beams( Book )

1 edition published in 1981 in English and held by 1 WorldCat member library worldwide

Contents: Free-Electron Laser with a Strong Axial Magnetic Field; Electron Beam Dynamics in Combined Guide and Pump Magnetic Fields for Free Electron Laser Applications; Theory of the Free Electron Laser in Combined Helical Pump and Axial Guide Fields; Orbit Stability in Free Electron Lasers; Degradation in Gain for a Free Electron Laser Amplifier Due To Electron Momentum Spread
Parallel Concepts in the Derivation of the Classical and Quantum Boltzmann Equations( Book )

1 edition published in 1974 in English and held by 1 WorldCat member library worldwide

The kinetic equation describing a spacially inhomogeneous dilute gas is derived from the appropriate hierarchy equations according to both classical and quantum mechanics. In the former case one obtains the Boltzmann equation, in the latter the Uehling-Uhlenbeck equation. The derivations in the two cases are completely parallel and assume only that two-particle correlation functions factor into products of one-particle functions when the two particles are separated by distances greater than the range lambda of the interaction potential, and that terms of order n(lambda cubed) <<1, where n is the particle density, may be dropped compared with terms of order unity in equations of motion. (Author)
A multiple bounce theory for the expansion and retardation of a cold plasma explosion bubble by Ira B Bernstein( Book )

1 edition published in 1964 in English and held by 1 WorldCat member library worldwide

Electron Distribution Functions in Weakly Ionized Plasma by Ira B Bernstein( Book )

1 edition published in 1968 in English and held by 1 WorldCat member library worldwide

 
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Audience Level
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  Kids General Special  
Audience level: 0.74 (from 0.66 for Linear sta ... to 1.00 for Wave-Parti ...)

Alternative Names
Ira B. Bernstein Amerikaans natuurkundige

Ira B. Bernstein amerikansk fysikar

Ira B. Bernstein amerikansk fysiker

Ira B. Bernstein physicien américain

Ira B. Bernstein US-amerikanischer Physiker

ایرا بی برنشتین فیزیک‌دان آمریکایی

Languages
English (37)