Accession Number:

ADD019534

Title:

Method and Apparatus for Transporting an Intense Ion Beam

Descriptive Note:

Patent, Filed 3 Dec 91, patented 27 Jul 99

Corporate Author:

DEPARTMENT OF THE NAVY WASHINGTON DC

Report Date:

1999-07-27

Pagination or Media Count:

7.0

Abstract:

A method and apparatus for transporting a positive ion beam to a distant target. An ion channel is created as a path to the target, and the beam injected into the channel at a mildly- relativistic beam velocity. Because the beam is mildly- relativistic, the electric field caused by its positive charge propagates wet in advance of the beam, attracting free electrons in the plasma channel and pulling them into the beam along its axis of propagation. The current which is initiated by this precursor electron flow, is sustained during the duration of the beam, and is then a combination of the beam current and additional current carried by the electrons within the channel. As a result, a magnetic flux circulates annularly about the beam of a sufficient magnitude to pinch the beam.

Subject Categories:

  • Plasma Physics and Magnetohydrodynamics
  • Fusion Devices (Thermonuclear)

Distribution Statement:

APPROVED FOR PUBLIC RELEASE