Laser and Particle Beams
- Laser and Particle Beams / Volume 5 / Issue 03 / August 1987, pp 505-515
- Copyright © Cambridge University Press 1987
- DOI: http://dx.doi.org/10.1017/S0263034600002998 (About DOI), Published online: 09 March 2009
Research Article
Pulsed ion sources for accelerator inertial fusion
S. Humphries Jr.a1 and C. Burkharta1
a1 Institute for Accelerator and Plasma Beam Technology, University of New Mexico, Albuquerque, New Mexico 87131
Abstract
Experimental results are reported on an extractor for pulsed, high-intensity beams of intermediate mass ions. Aluminum and indium plasmas were generated using a metal vapor vacuum arc. A method for electrostatic separation of ions from electrons at the anode was utilized to generate constant current beams, insensitive to plasma flux variations.
A maximum extraction voltage of 30 kV was applied across a 1·6 cm gap. Voltage pulse length ranged from 10 to 50μsec. Peak current densities of 15 mA/cm2 and normalized emittance of εn<3χ10-7; π-m-rad were achieved for Al+ and In+ from a 20-cm2 anode. Ions were predominantly in the +1 ionization state with no observable species contamination. The technology may have application to the induction linac approach to Accelerator Inertial Fusion.
