| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a rotary anode-type X-ray tube that mitigates a thermal restriction of a rotor and is capable of well balancing a mass of the rotor, and a manufacturing method thereof.SOLUTION: The rotary anode-type X-ray tube includes a fixed shaft, a first rotary cylinder, a second rotary cylinder and a third rotary cylinder. The first rotary cylinder is supported in a freely rotatable manner around the fixed shaft while mounting an anode target thereto. The second rotary cylinder is rotated around the fixed shaft together with the first rotary cylinder. The third rotary cylinder is joined to at least one of the first rotary cylinder and the second rotary cylinder and rotated around the fixed shaft together with the first rotary cylinder and the second rotary cylinder. A portion of the third rotary cylinder is positioned in a gap that is formed between the first rotary cylinder and the second rotary cylinder, and joins the first rotary cylinder and the second rotary cylinder.</p> |
