Intense Relativistic Electron Beam Investigations
Abstract
During this period research was performed at North Carolina State on collective ion acceleration in a vacuum diode geometry and in collaboration with a group from the Naval Research Lab on collective ion acceleration within an evacuated dielectric tube. Diode voltage and current wave forms along with transmitted beam energy and current were measured for a series of linear diameters and lengths. Beam energy loss was linear at the rate of approx 12 j/ cm. For the 8.3 and 15.9 cm length tubes, the Alfen limiting current was exceeded, indicating the creator of enough plasma for some current neutralization. Below the Alfen limit the current propagates in a pinched beam. The beam from velocity was 1.4 cm/nsec. Equipment for experimental work on electron beam propagation in evacuated magnetized pipes has been assembled and a theoretical study was made of intense electron beam equilibrium in magnetized pipes using a relativistic cold fluid model.
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 01, 1979
- Accession Number
- ADA078515
Entities
People
- Wesley O. Doggett
Organizations
- North Carolina State University