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Explosive detection system

  • US 6,828,795 B2
  • Filed: 01/22/2003
  • Issued: 12/07/2004
  • Est. Priority Date: 02/15/2002
  • Status: Expired due to Term
First Claim
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1. An explosive detection system, comprising:

  • a sampling orifice that receives a sampled gas flow therethrough toward the sampling orifice;

    a fluid rotator that creates a cyclonic gas flow beyond the sampling orifice about the sampled gas flow as the sampled gas flow flows toward the sampling orifice;

    an ion source, coupled to the sampling orifice, that generates ions corresponding to the sampled gas flow;

    a drift tube having the ion source coupled to a first end thereof; and

    a detector coupled to an other end of the drift tube, wherein the detector detects in the sampled gas flow the presence of ions associated with explosives.

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