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Explosives detection system using computed tomography (CT) and quadrupole resonance (QR) sensors

  • US 20040252807A1
  • Filed: 06/11/2003
  • Published: 12/16/2004
  • Est. Priority Date: 06/11/2003
  • Status: Active Grant
First Claim
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1. A method for detecting explosives in baggage, said method comprising:

  • X-ray scanning said baggage for explosives using a X-ray sensor adapted to automatically, selectively generate alarm and clear signals to respectively identify the presence or absence of said explosives; and

    processing said signals generated by said X-ray sensor, wherein if said X-ray sensor generates an alarm signal for sheet explosives resulting from said X-ray scanning, then said method further comprises;

    quadrupole resonance (QR) scanning said baggage using a QR sensor, wherein said QR sensor is adapted to generate QR signals in response to explosive compounds containing QR responsive materials; and

    wherein if said QR sensor generates a QR signal that meets or exceeds a predetermined threshold, then a QR system alarm is triggered and said baggage is identified as requiring alarm resolution.

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