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Inspection unit

  • US 6,663,280 B2
  • Filed: 06/28/2001
  • Issued: 12/16/2003
  • Est. Priority Date: 06/28/2001
  • Status: Expired due to Term
First Claim
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1. An inspection apparatus comprising:

  • a radiation tunnel having an entrance and an exit;

    a conveyor for transporting objects from the entrance toward the exit of the radiation tunnel;

    a radiation zone formed within the radiation tunnel, the radiation zone having a least one radiation source and at least one corresponding detector; and

    at least one pair of shielding curtains positioned adjacent to one another in a transport direction at the entrance of the radiation tunnel, the at least one pair of shielding curtains being spaced from one another at a distance of at least one-half the length of a foremost shielding curtain measured from an upper region of the radiation,tunnel, the upper region being positioned opposite the conveyor.

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