| 摘要 |
PROBLEM TO BE SOLVED: To provide a small-sized lightweight rotary irradiation therapy equipment having a beam transportation device, that contains a superconductive deflection electromagnet, with a simple structure. SOLUTION: The freezer-use compressor 7 is rotatably installed on a rotary frame 3 to be rotatable around the rotation axis R<SB>2</SB>in parallel with the first rotation axis R<SB>1</SB>of the rotary frame 3. While the rotary frame 3 is rotated by a rotary frame support driving device 25 with a first angular velocity, the freezer-use compressor 7 rotates around the rotary frame 3 with a second angular velocity that is the same with the first angular velocity but reversed in direction. Accordingly, it is possible to maintain a constant position of the freezer-use compressor 7 at all times during the rotation of the rotary frame 3. COPYRIGHT: (C)2010,JPO&INPIT
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