An X-ray generation device includes: a sealed X-ray tube including a cathode and an anode; a magnetic field generation portion applying a magnetic field to the electron beam, the magnetic field extending in a first direction, which crosses a traveling direction of the electron beam; and a rotary drive system configured to rotate the sealed X-ray tube, the anode having a surface including a first region and a second region arranged on one side and another side, with respect to a straight division line, the first region having a first metal arranged therein, and the second region having a second metal arranged therein, the second metal being different from the first metal, and by means of the rotary drive system rotating the sealed X-ray tube, the sealed X-ray tube being arranged with respect to the magnetic field generation portion so that the straight division line lies along the first direction.