Patent ID: 7348555

Claim:
An electron beam irradiation apparatus comprising: a turn-transfer mechanism which turn-transfers an irradiation target; a turn irradiation chamber in which the turn-transfer mechanism is disposed; an electron beam irradiation section which is located in said turn irradiation chamber, and which irradiates the irradiation target with an electron beam during turn-transfer of the irradiation target while shifting stop positions; a replacement room which is disposed at a part of the turn irradiation chamber, and which brings the irradiation target into and out of the turn irradiation chamber; an outer irradiation target turn tray which: (i) is disposed outside the turn irradiation chamber, (ii) forms a part of the replacement room, and (iii) includes an X-ray shielding mechanism, an airtightness maintaining mechanism, and an irradiation target holding mechanism; an inner irradiation target turn tray which: (i) is disposed inside the turn irradiation chamber, (ii) forms a part of the replacement room, (iii) includes an X-ray shielding mechanism, an airtightness maintaining mechanism, and an irradiation target holding mechanism, and (iv) is supported by the turn-transfer mechanism; a turning mechanism which drives the turn-transfer mechanism in a transfer direction; and an elevator mechanism which moves the turn-transfer mechanism up and down.