본 발명은 엑스선 튜브에 관한 것이다. 본 발명의 일 측면에 따르면, 엑스선 윈도우가 형성된 제1하우징, 상기 제1하우징 내부에 설치되는 회전축을 중심으로 회전가능한 제2하우징, 상기 제2하우징 내부에서 상기 회전축 상에 설치되며 상기 회전축의 연장 방향 일측에 위치되는 아노드, 상기 제2하우징 내부에서 상기 회전축 상에 설치되며 상기 회전축의 연장 방향 타측에 위치되어 전자빔을 방출하는 에미터, 상기 아노드 및 상기 에미터 사이에 설치되어 상기 에미터로부터 방출되는 전자빔을 상기 아노드로 집속하는 렌즈, 및 상기 렌즈부로부터 상기 아노드 방향으로 이동하는 전자빔의 각도를 편향시키도록 상기 회전축 상에 설치되는 전자빔 편향부를 포함하는, 엑스선 튜브가 제공된다.
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