Structural systemic stability design of inertial confinement fusion facility target area

In order to meet the stringent stability requirement, target area structural systemic stability design was used in the inertial confinement facilities in which National Ignition Facility（NIF）of USA and SG facility are representative. In the structural systemic stability design of the SG facility target area, a new analytical method was proposed to obtain the drifting error of each beam by accounting the dynamic responses of the optical elements. This stability evalutation method was different from that of National Ignition Facility of USA. The calculated drifting errors of the beams indicate that the designed structural system has meet the stability requirement of the SG facility target area. It is concluded that this analytical method can be used in the structural systemic stability de