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Rapiscan 620 DV

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Liquid Threat Detection Based on Rapiscan’s 620DV-AT

• Objectives• Working Assumptions• Liquid Threat Roadmap• Current Work to Date• Future Work• Conclusions

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Objectives of Rapiscan’s Liquid Threat Program

Rapiscan has a dedicated team improving its liquid detection capabilities to meet current and proposed aviation regulations globally

Four key technical requirements need to be met:– Liquid Threat Detection– Low nuisance alarm rate– Automatic operation– Efficient CONOPS

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Regulatory Requirements Guiding Development

United States• 2009 ‘3-1-1 and Exempt Liquids in a tray’

– Operation: Automatic Desired– Threat Liquid Types: Specified in TSA LTD Standard V1.3 12/6/06– Volume/Performance: Specified in Tier 2 of DHS/TSA/OST/ENG/AT-001– CONOPS: Multiple liquids screened in a tray (EU Type ‘C’)

• 2010 ‘Liquids in bags’– Operation: Automatic– Liquid Types: Specified in TSA LTD Standard V1.3 12/6/06– CONOPS: Liquids back in bags (EU Type ‘D’)

European Union• 2009 Transfer passengers• 2010 All departing passengers

– Operation: Automatic– Liquid Types: All of Group 1 & 6 of Group 2– Volumes: 100 ml and greater– CONOPS: Focus is on “Type C” equipment (i.e. multiple liquids in a tray)

Rapiscan is working with the major regulating agencies

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Program Activities

Requirements Determination• Creation of a set of requirements for the liquid screening

product offering

Algorithm Development• Initial LTDS algorithm primarily developed for plastic

containers • Completed first round of development testing • Algorithm improved for glass and partially-filled containers• Continued development to relax CONOPS restrictions

Data Collection• Threat liquids testing (currently ongoing)• Benign liquids • Typical carry-on liquids • Possible independent performance tests

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Dec 09: Move from Liquids in a Bin to a Bag

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Liquid Detection Performance vs. Number of Views

• Rapiscan understands the issues based on experience with a variety of x-ray systems– 1 view, 2 view (620DV), 3 view (MVXi), 5 view

(MVXR), CT (RTT80)• For Aviation Operations only minimal

difference between 2-5 views.

Two Views can achieve TSA liquid detection conops by Dec 09

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Dual View Advantages

• Dual-view systems offers other advantages:– Lower cost, complexity and weight– Smaller footprint– High reliability– Improved throughput (lower residence time in

tunnel)

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Rapiscan 620 DV