Erratum: “Child-Langmuir flow with periodically varying anode voltage” [Phys. Plasmas 22, 022126 (2015)]

Mhd Calculations of Anode Plasmas

We have performed a series of idealized MHD calculations of the response of an anode plasma layer to the rising magnetic field in an applied-B ion diode. The purposes of this study were to consider Joule heating of the plasma layer, which could pose potential problems for lithium ion diodes, and the leakage of flux behind the ion-emitting surface, which is related to impedance collapse. We find...

Erratum: "Virial coefficients and demixing in the Asakura-Oosawa model" [J. Chem. Phys. 142, 014902 (2015)].

Langmuir probe analysis for high density plasmas

High-density, radio-frequency plasmas used in semiconductor processing have progressed to densities n>5310 cm, where the methods used to interpret Langmuir probe characteristics in low-density (10 – 11 cm) plasma reactors are no longer valid. Though theory and computations for arbitrarily dense collisionless plasmas exist, they are difficult to apply in real time. A new parametrization and iter...

Exploration of Periodically Varying Graphs

We study the computability and complexity of the exploration problem in a class of highly dynamic graphs: periodically varying (PV) graphs, where the edges exist only at some (unknown) times defined by the periodic movements of carriers. These graphs naturally model highly dynamic infrastructure-less networks such as public transports with fixed timetables, low earth orbiting (LEO) satellite sy...

Beyond the Child-Langmuir limit.

This article presents a new formulation of the solution for fully nonlinear and unsteady planar flow of an electron beam in a diode. Using characteristic variables (i.e., variables that follow particle paths) the solution is expressed through an exact analytic, but implicit, formula for any choice of incoming velocity v(0), electric field E(0), and current J(0). For steady solutions, this appro...