Showing papers in "Journal of Nuclear Energy in 1961"

TL;DR: The general dispersion relation for small amplitude waves in a fully ionized plasma in an external magnetic field was derived in this article. But the dispersion relations were not considered in this paper.

TL;DR: In this article, a brief survey of the different theoretical approaches to the study of low-density, high-temperature ''classical'' plasma and of the high-density and low temperature ''quantum'' plasma is given.

TL;DR: In this paper, it was shown that the size of the Larmor radii of the precursor is proportional to the square of the Mach number of the incoming supersonic stream and that the density in the precursor relaxes to a small but non-vanishing value.

TL;DR: In this paper, the authors considered the problem of enhanced radiation losses from a hydrogen plasma containing a small percentage, particle-wise, of high Z impurities and showed that even a small fractional impurity content can greatly increase the total escaping radiation flux.

TL;DR: In this article, a general ring approximation to the equation of state for a gas of point charges has been derived, and the results of MONTROLL and WARD in a simpler form.

TL;DR: Collective interactions can provide a rapid mechanism for restoring grossly non-Maxwellian distributions to near Maxwellian in that electrodynamic instabilities will build up to high level within a few plasma periods.

TL;DR: In this paper, measurements of the fluctuations in anode voltage, tube current, and number density have been made in a hot-cathode mercury-vapour discharge at a pressure of about 1μ, under both space-charge limited and temperature-limited emission conditions.

TL;DR: In this paper, a novel method of injection into a mirror machine, reported recently by Sinelnikov et al., is analyzed in detail by numerical and perturbation solutions of the equations of motion of a single particle.

TL;DR: In this article, the effect of non-linear terms in the dynamical equations governing wave propagation in plasmas was analyzed by a perturbation procedure which is acceptable for amplitudes which are not too large.

TL;DR: In this paper, the use of superconducting resonators for a proton linear accelerator is shown to reduce greatly the radio-frequency power requirements and, in principle, to make a c.w. high intensity machine practicable.

TL;DR: In this article, necessary and sufficient conditions for the stability of a cylindrical discharge can be extended to the case in which there is an external gravitational potential present, and explicit forms are obtained for the analogues of three well-known stability criteria.

TL;DR: In this paper, it is shown that if the Hall e.m.f. is retained, wave motion is then obtained theoretically which is in good agreement with experiment, and the full set of hydromagnetic equations is not solved; instead a physical picture of the wave motion was obtained by considering the property of ''freezing in'' of magnetic lines of force in the plasma.

TL;DR: In this article, an estimate of the plasma potential created by the more rapid initial loss of electrons from magnetic mirror confinement is made and the effects of this potential on the mirror ratio of the system is discussed.

TL;DR: In this article, it was shown theoretically that a charged particle can be bound in stable orbits about the axis of a circular wave guide by the fields of the TE01 mode at cut-off.

TL;DR: In this article, the properties of a degenerate electron gas with a background of positive charge capable of propagating phonons are studied by means of a quasi-particle approach.

TL;DR: In this article, the Debye-H?ckel theory, modified to include quantum statistics, is discussed and the Helmholtz free energy of a slightly degenerate plasma is derived.

TL;DR: In this paper, the resonant frequencies of cylindrical reentrant electromagnetic cavities are calculated and upper and lower bounds to the required frequency are provided. But the lower bound is increased by subtracting from the total field a singular part caused by the presence of sharp corners.

TL;DR: In this paper, the present state of the theory of the propagation of small amplitude disturbances in monatomic gases and plasmas is discussed, based on kinetic equations for one-particle velocity distributions involving selfconsistent field forces and Boltzmann-like collision terms.

TL;DR: The equilibrium state of a long tubular plasma with reversed trapped magnetic fields is discussed in this article, where it is shown that an equilibrium position stable to longitudinal perturbations exists for each value of the ratio of external to trapped flux providing the cross-sectional area of the plasma is less than half the total area of a system.

TL;DR: In this article, it is shown that even for arbitrarily small field strengths, a proportionality constant (tensor) does not in general exist between a frequency component of the field strength and the corresponding component of current density.

TL;DR: In this article, the theory of cyclotron radiation from high-temperature plasma confined within a magnetic field is applied to the estimation of the radiation loss from plasma confined in fusion reactors.

TL;DR: In this article, the conservation laws of mass, momentum and energy and the entropy balance equation were developed for mixtures without and with electric and magnetic polarization, and also for systems in which the momentum transfer between some of their components is inhibited.

TL;DR: In this paper, a steady-state plasma column is produced by cyclotron resonance in crossed microwave electric and static magnetic fields, achieving densities of 1012 cm-3 at a neutral gas pressure in the micron range.

TL;DR: In this paper, a quasi-stationary, self-consistent field theory is developed for the space-charge neutralized plasma betatron, and it is found that the equilibrium orbit shrinks in the first phase of the acceleration process, and this sets a limit to the number of particles which can be accelerated.

TL;DR: In this paper, a model for a partially ionized, partially-dissociated plasma has been formulated using known theoretical concepts to describe both bound and free electron states, internal molecular degrees of freedom and Coulomb interactions.

TL;DR: A short discussion of some experimental work in the field of plasma physics in progress at CERN is presented in this paper, where a short discussion is presented of some experiments in progress.

TL;DR: In this article, the authors used the Boltzmann equation to calculate the transverse organizing length of a contained plasma and showed that the left-hand side of this inequality is of the order of magnitude of one and thus the inequality is satisfied for the dominant radiation from a plasma at high temperature.

TL;DR: In this paper, photographic evidence from experiments using hydrogen and deuterium discharges in a straight tube is given in support of a shock model which allows for energy spent in ionization and dissociation.

TL;DR: The experimental data concerning the anomalously large mobility of electrons across a magnetic field is discussed in this article, where it is shown that the distribution of the concentration of the secondary plasma of a discharge with an incandescent cathode is practically independent of the electron transverse diffusion coefficient, and therefore cannot be used to explain the mechanism of diffusion.

TL;DR: In this paper, an ion cyclotron heating of a deuterium plasma confined in the B-65 stellarator is reported, with the light intensity peaking at a value of the magnetic field about 10 per cent larger than B0.