Accession Number : ADA131001

Title :   Numerical Simulation of High Energy Light Ion Beam Flow through a Foilless Diode.

Descriptive Note : Memorandum rept.,

Corporate Author : NAVAL RESEARCH LAB WASHINGTON DC

Personal Author(s) : Barker,Robert J ; Roberson,Charles W ; Mako,Frederick

PDF Url : ADA131001

Report Date : 21 Jul 1983

Pagination or Media Count : 23

Abstract : A numerical and theoretical study is reported which treats the effects upon a 500 ke V, hollow electron beam in a foilless diode along the centerline of which has been injected a beam of 30 Me V protons. Specifically, the results of simulations of three, separate equilibrium diode states (for electron-only, 1 kA of protons, and 5 kA of protons) are reported. The computational findings are compared to rough, theoretical predictions and very good agreements is observed. The conclusion may be drawn that, for the diode parameters studied, a 1 kA beam of 30 Me V protons does not seriously disrupt the electron beam. On the other hand, a 5 kA proton beam not only radically alters the REB (Relativistic Electron Beam) characteristics but also itself falls prey to strong, radial ballooning. (Author)

Descriptors :   *Mathematical models, *Ion accelerators, *Diodes, High energy, Light, Ion beams, Electron beams, Proton beams, Protons, Numerical analysis

Subject Categories : Electrical and Electronic Equipment
      Numerical Mathematics
      Particle Accelerators

Distribution Statement : APPROVED FOR PUBLIC RELEASE