Target injection and engagement for neutron generation at 1 Hz

Abstract

Target injection is a key technology to realizing inertial fusion energy. Here we present the first demonstration of target injection and neutron generation. We injected more than 600 spherical deuterated polystyrene (C8D8) bead targets during 10 minutes at 1Hz. After the targets fell for a distance of 18 cm, we applied the synchronized laser-diode-pumped ultra-intense laser HAMA and successfully generated neutrons repeatedly. Theresult is a step toward fusion power and also suggests possible industrial neutron sources. © 2013 The Japan Society of Plasma Science and Nuclear Fusion Research.