Patent ID: 7193956
Filing Date: 2007-03-20
Classification: G11B,G21K

Abstract:
1. An electron beam irradiation apparatus comprising: a rotary driving unit for rotationally driving an object to be rotated; a shield container for rotatably accommodating the object and an interior of said shield container is set in an atmosphere of an inert gas; and an electron beam irradiation unit provided in said shield container so that the surface of the object is irradiated with electron beams from an irradiation window thereof, wherein the surface of the object is irradiated with the electron beams during its rotation from said irradiation window of said electron beam irradiation units, wherein said shield container is provided with a gas introduction port and a gas discharge port from which the inert gas flows in the vicinity of said irradiation window, wherein a temperature sensor is provided in the vicinity of said irradiation window, and wherein a flow rate of the inert gas is adjusted based on a temperature measured by said temperature sensor.