Patent ID: 7593504

Claim:
An X-ray inspection apparatus configured to inspect a product, which is being transported, by irradiating the product with X-rays and detecting the X-rays that pass through the product, comprising: an irradiation unit configured to irradiate the product with X-rays; a light receiving unit configured to detect the X-rays irradiated from the irradiation unit; a transport unit having a frame forming an opening aligned between the irradiation unit and the light receiving unit so that the X-rays passing through the opening are received by the light receiving unit, the transport unit being configured to transport the product with respect to the irradiation unit with the frame being substantially stationary with respect to the irradiation unit and the light receiving unit when the product is being transported; an X-ray shield unit that is integral with the frame of the transport unit and is formed in an area adjacent to the opening; and a control unit configured to detect the position at which the X-rays are blocked by the X-ray shield unit based on the amount of X-rays detected at the light receiving unit, and to determine whether the transport unit is properly mounted based on the position.