| 摘要 |
The electron beam corresponding to radiation intensity data 112 is output from an electron source 103 by supplying high energy pulse p-1 through p-n corresponding to the radiation intensity data 112 of the radiation field to electron source 103 from power source 108. This electron beam is deflected to be incident in parallel to the medial axis of the X-ray target tube by a deflection means comprising electromagnets, X-ray beam x-1 through x-n which electron beam collides to the inner wall of X-ray target tube 104-1 through 104-n, and have desired intensity is irradiated.
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