| abstract |
The purpose of the present invention is to allow comparatively easy control of energy supplied to plasma at the center of a target. A laser fusion device comprises: a target shell supplying device (3) for supplying a target shell (Tg1) to a chamber (2); a target shell monitoring device (4) for monitoring the orientation and position of the target shell (Tg1); a compressing laser output device (5a) and the like for irradiating the target shell (Tg1) with a compressing laser beam (LS1); and a heating laser output device (6) for irradiating the target shell (Tg1), after the compressing laser beam (LS1), with a heating laser beam (LS3). The target shell (Tg1) has a hollow spherical shape, the interior thereof is provided with a substantially spherical cavity (Sp), at least one through-hole (H1) is provided to connect the exterior and the cavity (Sp), and the outer surface (Sf1) of the target shell (Tg1) includes an irradiation region (Ar1, Ar2) where the compressing laser beam irradiation is expected to hit. |