Dielectric guide controlled collective ion acceleration. Final report

Technical Report · Fri Feb 01 04:00:00 EST 1980

OSTI ID:6642909

Experiments performed at Spire and NRL have demonstrated dielectric guide controlled collective ion acceleration. Control of the phenomenon has been established by varying the electron beam parameters or guide geometry. Specifically, it has been shown that: Total electron current must exceed the space charge limit; increasing electron current density increases the ion energy; a minimum electron current density is required; increasing guide length (assuming the electron beam can propagate to the end) increases ion energy; increasing guide radius at constant electron current decreases ion energy; and, the energy or charge deposited per unit area of wall controls the velocity of propagation of the electron beam front and therefore the energy of the ions. NRL VEBA results showed that: Dielectric guide controlled collective ion acceleration is effective at higher electron beam energies; an electron beam with current pinched on axis is more efficient for ion acceleration; and molding the surface of the guide can control the beam front velocity.

• Research Organization: Spire Corp., Bedford, MA (USA)
• OSTI ID: 6642909
• Report Number(s): AD-A-084994
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
430303* -- Particle Accelerators-- Experimental Facilities & Equipment
ACCELERATORS
BEAMS
COLLECTIVE ACCELERATORS
ELECTRON BEAMS
ELECTRON DENSITY
FIELD THEORIES
GENERAL RELATIVITY THEORY
LEPTON BEAMS
PARTICLE BEAMS
POWER
PULSES
RELATIVITY THEORY