Navigation Links
Bomb scares: An ODD solution
Date:5/21/2010

For anyone who has spent a significant amount of time in an urban setting, the scene of a bomb squad responding to a report of a suspicious package might be all too familiar. But just how is it determined that the lunchbox left under the park bench is just leftovers or a lethal weapon? The most common way is spectroscopy.

"Spectroscopy is good, but it only gets you so far," says Eric Houser, a program manager in the Explosives Division of the Department of Homeland Security's Science and Technology Directorate (S&T). The wave of the future may lie in a technology called optimal dynamic detection (ODD), which overcomes many of spectroscopy's limitations.

Spectroscopy uses the color spectrum to shed light on a package's makeup. Since it uses visible light only, spectroscopy can't see through a lunchbox, but what it can see is microscopic residue on the box's outer layer, which can provide telltale clues about what's inside.

Using spectroscopy, bomb squad personnel will beam a laser at the package, then compare the reflected "light signature"an optical fingerprintagainst a library of known signatures for chemical compounds, such as nitroglycerin. If there is nitro inside, chances are that some of it will be found in the package's residue.

This method presents two problems. First, there's distance. Many threat detection methods require either the person or the detector to be physically near the bomb, making spectroscopy extremely dangerous.

Second, approaches like spectroscopy, which rely on reflected light, often are not sensitive or selective enough, especially in the real world where chemical signatures may overlap or be contaminated. Think of light signatures as fingerprints. Capturing a fingerprint from a clean surface is not especially difficult. But in real life, surfaces are anything but clean, and dust, grease, or even ink stains can cause a backpack or lunch pail to bear small deposits of several different
'/>"/>

Contact: John Verrico
john.verrico@dhs.gov
202-527-3625
US Department of Homeland Security - Science and Technology
Source:Eurekalert  

Page: 1 2 3

Related biology technology :

1. BioLife Solutions Announces Exclusive CryoStor(TM) Supply Agreement With the New England Cryogenic Center, Inc.
2. Vital Images Releases Next Generation Enterprise-Wide Solutions Featuring Vitrea(R) 4.0 and ViTALConnect(R) 4.1
3. Haemonetics Announces New Subsidiary, Haemonetics Software Solutions
4. BioLife Solutions Expands Scientific Advisory Board
5. Elekta Contract Provides Sisters of Mercy Health System Access to Leading Radiation Therapy Solutions
6. Salugen Announces the U.S. Launch of GenoTrim - a DNA Customized Nutritional Solution for Weight Management
7. Elekta Displays Complete Volumetric Intensity Modulated Arc Therapy Solutions at ESTRO
8. Sigma-Aldrich and Ingenuity Systems Announce Partnership to Create E-Commerce Search Solution Based on Biological Knowledge
9. Total Site Solutions Selected to Provide Construction Management Services for Existing Pharmaceutical and Biotech Customer for Data Center Expansion Project
10. BioLife Solutions CryoStor(TM) Adopted by Tissue Regeneration Therapeutics for Preservation Protocol for New, Non-Embryonic Source of Stem Cells
11. Advanced Bionics Deploys CEVA-TeakLite(TM) DSP Core to Enhance Its Harmony(TM) HiResolution(R) Bionic Ear System
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Bomb scares: An ODD solution
(Date:7/29/2014)... SoundConnect , an award winning ... to announce the strategic additions of implementation, support, ... Charleston and Atlanta offices. SoundConnect’s organizational expansion ... hosted solutions, collaboration and mobility that improve business ... SoundConnect was founded in 2004, with the mission ...
(Date:7/29/2014)... (PRWEB) July 29, 2014 The advanced ... the brain that are driving a revolution in the ... new peer-reviewed journal published by SPIE, the international ... issue coincides with the launch of the BRAIN Initiative ... articles that lay out a vision for and provide ...
(Date:7/29/2014)... The Quantum Cheshire Cat: Can a particle be separated ... Nature Communications , published the results of the ... magnetic field, conducted by Chapman University in Orange, CA, ... often seen a cat without a grin," thought Alice ... the most curious thing I ever saw in my ...
(Date:7/29/2014)... , July 29, 2014  The Society ... new and updated program for the 9 th ... 12, 2014 in Amelia Island , Florida.  ... and investigators remains unchanged, however, the topics and ... and networking opportunity among all stakeholders with a ...
Breaking Biology Technology:SoundConnect Organization and Culture is Evolving 2SPIE Launches 'Neurophotonics' Journal with Special Section on BRAIN Initiative 2SPIE Launches 'Neurophotonics' Journal with Special Section on BRAIN Initiative 3SPIE Launches 'Neurophotonics' Journal with Special Section on BRAIN Initiative 4The quantum Cheshire cat: Scientists separate a particle from its properties 2The quantum Cheshire cat: Scientists separate a particle from its properties 3The quantum Cheshire cat: Scientists separate a particle from its properties 4TransCelerate, Lilly, Pfizer, and FDA Highlight Collaborative Program at the Site Solutions Summit 2TransCelerate, Lilly, Pfizer, and FDA Highlight Collaborative Program at the Site Solutions Summit 3
... MADISON -- The same chemical reaction that causes iron to ... stress chips away at healthy cells and is a process, ... conditions in humans ranging from Alzheimer,s, heart disease and stroke ... writing in the current edition (Feb. 21, 2008) of the ...
... N.C., Feb. 20 Addrenex,Pharmaceuticals has reached its ... a new drug application (NDA) for its first ... Food and Drug,Administration, Addrenex and its licensing partner ... first half of 2009., Addrenex has moved ...
... SGI Altix, Altix XE Cluster and SGI InfiniteStorage ... Environment for All Stages of Research, SUNNYVALE, ... Annual Lorne Genome Conference -- To create an ... bioinformatics,research, the Malaysia Genomics Institute (MGI) selected SGI ...
Cached Biology Technology:Genetic pathway critical to disease, aging found 2Genetic pathway critical to disease, aging found 3Addrenex Pharmaceuticals Reaches Milestone with Filing of NDA for First Product, CloniBID, to Treat Hypertension 2Malaysia Genome Institute Advances Bioinformatics Research Using SGI Technology 2Malaysia Genome Institute Advances Bioinformatics Research Using SGI Technology 3Malaysia Genome Institute Advances Bioinformatics Research Using SGI Technology 4
(Date:7/30/2014)... Washington, DCToday scientists unveiled the first high-resolution map ... the entire country of Per. The new and ... a sea change for future market-based carbon economies. ... extremely high ecological diversity and it provides the ... degradation for conservation, land use, and enforcement purposes. ...
(Date:7/29/2014)... in the University of Bristol,s Nutrition and Behaviour Unit ... into account when planning meals. , The research, to ... Ingestive Behavior Conference (SSIB 2014) in Seattle, USA this ... do. , The team was led by Professor Jeff ... Psychology. , As part of a Biotechnology and Biological ...
(Date:7/29/2014)... warms and sea ice retreats, the North is changing. ... open water which is predicted to extend across the ... Storms thus have the potential to create Arctic swell ... unpredictable element to the region. , A University of Washington ... middle of the Arctic Ocean, and detected house-sized waves ...
Breaking Biology News(10 mins):Peru's carbon quantified: Economic and conservation boon 2Peru's carbon quantified: Economic and conservation boon 3Huge waves measured for first time in Arctic Ocean 2Huge waves measured for first time in Arctic Ocean 3
... GEOLOGY ends 2012 with 23 new articles spanning ... Naica Cave, Mexico; Diamantina, Brazil; the Galpagos hotspot; China; ... central West Greenland; the California arc; the Pacific Ring ... Sierra Nevada; Spain; New Zealand; Turkey; Connecticut, USA; and ...
... the extinct giant piranha, or megapiranha, have the most ... body size is taken into account, finds researchers in ... The research paper, Mega-Bites: Extreme jaw forces of living ... which allows them to attack and bite chunks out ...
... RICHLAND, Wash. Pacific Northwest National Laboratory has been ... large amounts of renewable energy until it,s needed, fight ... to the marketplace. The Federal Laboratory Consortium announced ... Richland is receiving three 2013 Excellence in Technology Transfer ...
Cached Biology News:GEOLOGY returns to Naica Cave, Mexico, and extends its reach to Mercury 2GEOLOGY returns to Naica Cave, Mexico, and extends its reach to Mercury 3GEOLOGY returns to Naica Cave, Mexico, and extends its reach to Mercury 4GEOLOGY returns to Naica Cave, Mexico, and extends its reach to Mercury 5GEOLOGY returns to Naica Cave, Mexico, and extends its reach to Mercury 6GEOLOGY returns to Naica Cave, Mexico, and extends its reach to Mercury 7GEOLOGY returns to Naica Cave, Mexico, and extends its reach to Mercury 8GEOLOGY returns to Naica Cave, Mexico, and extends its reach to Mercury 9GEOLOGY returns to Naica Cave, Mexico, and extends its reach to Mercury 10GEOLOGY returns to Naica Cave, Mexico, and extends its reach to Mercury 11GEOLOGY returns to Naica Cave, Mexico, and extends its reach to Mercury 12GEOLOGY returns to Naica Cave, Mexico, and extends its reach to Mercury 13GEOLOGY returns to Naica Cave, Mexico, and extends its reach to Mercury 14GEOLOGY returns to Naica Cave, Mexico, and extends its reach to Mercury 15GEOLOGY returns to Naica Cave, Mexico, and extends its reach to Mercury 16GEOLOGY returns to Naica Cave, Mexico, and extends its reach to Mercury 17GEOLOGY returns to Naica Cave, Mexico, and extends its reach to Mercury 18GEOLOGY returns to Naica Cave, Mexico, and extends its reach to Mercury 19GEOLOGY returns to Naica Cave, Mexico, and extends its reach to Mercury 20Black piranha, megapiranha have most powerful bites of fish living or extinct, finds GW researcher 2PNNL recognized for transferring innovations to the marketplace 2PNNL recognized for transferring innovations to the marketplace 3
... commonly used technique for studying protein function ... on SDS-PAGE and transferred to a membrane ... are probed with specific antibodies. Unlike nucleic ... Southern and Northern blots, it has been ...
... System, Basic Package Superior Protein Detection ... The ProXPRESS 2D Proteomic Imaging System is ... both proteomic and general life science research ... the use of all dyes in the ...
... our Regulatory Edition of Molecular Imaging (MI) ... for life science research and drug discovery ... with U.S. Food and Drug Administrations Code ... Electronic Records; Electronic Signatures [21 CFR Part ...
... OPA1-01009, OPEP-01009 is a 16 amino acid (amino acids 3-18) ... (DFF). The sequence of this peptide is (amino to ... S - V - K - L - R - ... R - K(18). This peptide may be used ...
Biology Products: