Accession Number : ADA194837

Title :   Pierce Diode with External Circuit. III. Chaotic Behavior.

Descriptive Note : Memorandum rept.,

Corporate Author : CALIFORNIA UNIV BERKELEY COLL OF ENGINEERING

Personal Author(s) : Lawson, William S

PDF Url : ADA194837

Report Date : 28 Oct 1987

Pagination or Media Count : 38

Abstract : The existence of the strange attractor discovered by Godfrey in the neighborhood of alpha=3pi for the Pierce Diode is verified, and his numerical results are refined. The evolution of this attractor is then followed as an external capacitance is introduced. The Pierce diode is perhaps the simplest realistic theoretical model for a bounded one-dimensional plasma system. It is comprised of two parallel electrodes with electrons injected at one of the electrodes with velocity vo. Ions are considered to be infinitely massive, and in a uniform background which neutralizes the charge density of the electrons at the electrode from which the electrons are injected. The electrodes are also held at the same potential, i.e., short-circuited. This short circuit allows feedback, and leads to a wealth of interesting behavior.

Descriptors :   *ELECTRONS, *MODELS, *NUMERICAL ANALYSIS, *PLASMAS(PHYSICS), *SHORT CIRCUITS, *THEORY, BACKGROUND, CAPACITANCE, CHARGE DENSITY, CIRCUITS, ELECTRODES, EXTERNAL, IONS, ONE DIMENSIONAL, PARALLEL ORIENTATION

Subject Categories : Cybernetics
      Plasma Physics and Magnetohydrodynamics
      Statistics and Probability

Distribution Statement : APPROVED FOR PUBLIC RELEASE