Proof-of-Concept Experiments for Negative Ion Driver Beams for Heavy Ion Fusion
Authors: L.R. Grisham, S.K. Hahto, S.T. Hahto, J.W. Kwan, and K.N. Leung
Date of PPPL Report: May 2003
Presented at: the Particle Accelerator Conference (PAC2003), 12-16 May, 2003, Portland, Oregon.
Negative halogen ion beams have recently been proposed as heavy ion fusion drivers. They would avoid the problem of electron accumulation in positive ion beams, and could be efficiently photo-detached to neutrals if desired. Initial experiments using chlorine produced a current density of 45 mA/cm2 of 99.5% atomic negative Cl with an e/Cl- ratio as low as 7:1 and good emittance.