The Bernard M. Gordon Center for Subsurface Sensing and Imaging Systems BomDetec: Wide Area Surveillance and Suicide Bomber Detection at Greater than.

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The Bernard M. Gordon Center for Subsurface Sensing and Imaging Systems BomDetec: Wide Area Surveillance and Suicide Bomber Detection at Greater than 10 Meters Carey Rappaport Northeastern University

BomDetec Team Integrated Defense Systems

Basic Detection Geometry Layered detection within a single package: Intelligent Video mm-wave Radar X-Ray Backscatter THz Spectroscopy Radar 50m Video 100m X-Ray 10m THz 10m Video Radar X-Ray Thz Pedestrian Paths ZBV

Proposed AS&E Z - Backscatter Van with Sensor Layout and Coverage PTZ Cameras X-ray Beam Side View Terahertz Beam Radar Beam Top View

SCR Technology: Automatically Detect and Track Individuals Siemens Corp. Res.: Intelligent Video SCR Technology: Automatically Detect and Track Individuals Current work: extend this technology to allow camera hand-off, long term tracking of individuals

77 GHZ Radar Detection: Raytheon, PPT, NEU 50m range High resolution at 4mm wavelength Single human illumination Ave. width of person: 0.5m Beamwidth: 0.6 deg. Detect people / distinguish hazards through clothes

AS&E X-Ray Backscatter Detection X-Ray Backscatter image Showing Organic / Inorganic Objects Chopper Wheel for Generating X-Ray Fan Beam http://www.as-e.com/products_solutions/z_backscatter_transmission.asp

Explosive THz Absorption Spectra-- RPI 240 240 HMX RDX 180 180 1.96THz 1.8THz 0.82THz a (cm-1 ) a (cm-1 ) 120 120 1.5THz 60 60 0.5 0.8 1.2 1.6 2.0 2.4 0.5 0.8 1.2 1.6 2.0 2.4 Frequency (THz) Frequency (THz) 1.6THz 1.6 2.0 2.4 0.5 1.2 0.8 2.2THz TNT 80 60 40 20 a (cm-1 ) 160 PETN 2.0THz 120 a (cm-1 ) 80 40 0.5 0.8 1.2 1.6 2.0 2.4 Frequency (THz)

Non-Explosives Absorption Spectra: Distinct from Explosives Spectra Frequency (THz) 1.6 2.0 2.4 0.5 1.2 0.8 Sugar 240 180 120 60 Detergent a (cm-1 ) 30 60 90 120 L-Leucine Frequency (THz) 0.84THz 2.1THz 0.8 1.2 1.6 2.0 2.4 0.5 a (cm-1 ) 1.6THz 1.6 2.0 2.4 0.5 1.2 0.8 Frequency (THz) a (cm-1 ) 120 90 60 30 150 Dimethoate 1.05THz 1.9THz

Overall Suicide Bomber Detection Strategy Track individuals: identify suspicious movement (Video) Detect anomalies under clothing at distance (Radar) Image object under clothing at medium distance (X-Ray) Analyze chemical characteristics at medium distance (THz)