The Bernard M Gordon Center for Subsurface Sensing

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

Bom. Detec Team Integrated Defense Systems

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

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

Siemens Corp. Res. : Intelligent Video SCR Technology: Automatically Detect and Track Individuals

77 GHZ Radar Detection: Raytheon, PPT, NEU § 50 m range § High resolution at 4 mm wavelength § Single human illumination § Ave. width of person: 0. 5 m § Beamwidth: 0. 6 deg. § Detect people / distinguish hazards through clothes

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

Explosive THz Absorption Spectra-- RPI 180 a (cm-1 ) HMX 1. 8 THz 120 60 0. 5 0. 8 160 a (cm-1 ) 240 1. 2 1. 6 2. 0 Frequency (THz) PETN 120 2. 4 180 120 80 0. 82 THz 1. 96 THz 1. 5 THz 60 80 2. 0 THz RDX 0. 5 0. 8 a (cm-1 ) 240 1. 2 1. 6 2. 0 Frequency (THz) TNT 2. 4 2. 2 THz 60 40 1. 6 THz 40 0. 5 0. 8 20 1. 2 1. 6 2. 0 Frequency (THz) 2. 4 0. 5 0. 8 1. 2 1. 6 2. 0 Frequency (THz) 2. 4

Non-Explosives Absorption Spectra: Distinct from Explosives Spectra 240 Sugar a (cm-1 ) 180 120 60 0. 5 0. 8 1. 2 1. 6 2. 0 Frequency (THz) 120 L-Leucine (cm-1 60 a 30 120 60 0. 5 0. 8 2. 1 THz 120 1. 6 THz 0. 84 THz 0. 5 0. 8 1. 2 1. 6 2. 0 Frequency (THz) 2. 4 Detergent 180 150 ) 90 2. 4 a (cm-1 ) 240 90 60 1. 2 1. 6 2. 0 Frequency (THz) Dimethoate 2. 4 1. 9 THz 1. 05 THz 30 0. 5 0. 8 1. 2 1. 6 2. 0 Frequency (THz) 2. 4

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)