X-RAY TUBE, X-RAY TUBE DEVICE, AND METHOD FOR MANUFACTURING X-RAY TUBE

摘要

An X-ray tube according to an embodiment is provided with: a negative electrode (11) for releasing electrons; a positive electrode (12) having a positive electrode target (12a) which is caused to release X-rays by being impacted by the electrons released from the negative electrode (11); a glass container (16) accommodating the negative electrode (11) and the positive electrode (12); a positive electrode rod (14) extending from the positive electrode (12) to the exterior of the glass container (16); an annular metal member (17) through which the positive electrode rod (14) is inserted, the metal member (17) connecting the positive electrode (12) and the glass container (16) to each other and maintaining a vacuum in the interior of the glass container (16); and an electrically insulating mold resin member (15) filling a space (S) formed between the positive electrode rod (14) and the outer surface of the glass container (16) and the metal member (17).