| 摘要 |
<p>Apparatus for executing maintenance work on the inner wall of a vacuum vessel 4, comprising a tubular stucture 2 connected to the vessel, an arm 8a in the tubular structure, an arm end 8 movable elevationally in a Z-axis direction and rotatable in a X-Y plane with the Z-axis as a centre in a manner projected in a direction perpendicular to the Z-axis, in X-Y-Z orthogonal coordinates having the axis of the tubular structure as a Z-axis, a movable block 23 capable of freely moving in the lengthwise direction of and mounted on the arm end, a titanium deposition source 9 mounted in the block to thereby fuse and diffuse the titanium at an arbitrary coodinate position of the X-Y-Z coordinates in a predetermined range in the vacuum vessel, and an image guide sensor 12 mounted at the arm end to observe the state in the vacuum vessel.</p> |
