Speaker
Jiaqin Dong
Description
See the full Abstract at http://ocs.ciemat.es/EPS2018ABS/pdf/P1.2021.pdf
Progress of Laser direct-drive implosions on the SGⅢ prototype facility
J.Q. Dong 1, E.F. Guo1, Z.H. Fang1, J.W. Li 2, D.X. Liu3, M.X. Wei3, Q. Tang3, S.Z. Yi4
1
Shanghai Institute of Laser Plasma, Shanghai, P.R. China
2
Institute of Applied Physics and Computational Mathematics, Beijing, P.R. China
3
Laser Fusion Research Centre, Miangyang, P.R. China
4
Tongji University, Shanghai, P.R. China
Gas-filled capsules are directly imploded by laser energies of 6.5 kJ with 8 laser beams at SG
Ⅲ prototype laser facility. Nine different types of diagnostic instruments are used in the
experiments, providing an understanding of the relevant target physics. The in-flight
dynamics of imploding capsules is measured by streaked x-ray radiography. And a new
developed 16-framed K-B x-ray framing camera is used to acquire 2D blow-off emission
images of the in-flight shell and asymmetric shapes of hot spots. The measured D-D neutron
yield of the gas-filled capsule is 1×108 at best shots, and decreases with the asymmetry of
in-flight shell, which is meanly decided by the laser spot distribution at the capsule surface.
