Navigation Links
Finding explosives with laser beams
Date:2/27/2012

searchers at TU Vienna collaborated with private companies and with partners in public safety, including The Spanish Guardia Civil who are are extremely interested in the new technology. During the project, the Austrian military was also involved. On their testing grounds the researchers from TU Vienna could put their method to the extreme. They tested frequently used explosives, such as TNT, ANFO or RDX. The tests were highly successful: "Even at a distance of more than a hundred meters, the substances could be detected reliably", says Engelene Chrysostom (TU Vienna).

Seeing Through Walls

Raman spectroscopy over long distances even works if the sample is hidden in a nontransparent container. The laser beam is scattered by the container wall, but a small portion of the beam penetrates the box. There, in the sample, it can still excite Raman-scattering processes. "The challenge is to distinguish the container's light signal from the sample signal", says Bernhard Lendl. This can be done using a simple geometric trick: The laser beam hits the container on a small, well-defined spot. Therefore, the light signal emitted by the container stems from a very small region. The light which enters the container, on the other hand, is scattered into a much larger region. If the detector telescope is not exactly aimed at the point at which the laser hits the container but at a region just a few centimeters away, the characteristic light signal of the contents can be measured instead of the signal coming from the container.

The new method could make security checks at the airport a lot easier but the area of application is much wider. The method could be used wherever it is hard to get close to the subject of investigation. It could be just as useful for studying icebergs as for geological analysis on a Mars mission. In the chemical industry, a broad range of possible applications could be opened up.


'/>"/>

Contact: Florian Aigner
florian.aigner@tuwien.ac.at
43-158-801-41027
Vienna University of Technology
Source:Eurekalert  

Page: 1 2

Related biology news :

1. Football findings suggest concussions caused by series of hits
2. Findings prove Miscanthus x giganteus has great potential as an alternative energy source
3. New findings by St. Michaels researchers about the way cells work
4. Spasticity gene finding provides clues to causes of nerve cell degeneration
5. Sensational bird finding in China
6. Senses of sophistication: Mosquitoes detect subtle cues finding food, spreading diseases
7. The leading edge of stress: New genomic, optogenetic and epigenetic findings
8. Texas Biomed develops new approach to study depression; finding may lead to new marker for risk
9. UH engineers finding new ways to fight malaria with DOD grant
10. New findings validate the accuracy of autism diagnosis in children with Down syndrome
11. Finding relief in ritual
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Finding explosives with laser beams
(Date:10/14/2014)... Scientists from The Scripps Research Institute (TSRI) have been ... (NIH) to lead an investigation of Lassa fever virus, ... The study aims to understand how Lassa fever virus ... survive the inflection. , "The ultimate goal is ... Lassa fever virus causes disease and develop new treatments ...
(Date:10/14/2014)... by the Chinese Academy of Agricultural Sciences in Beijing, ... brief genomic history of tomato breeding, based on sequencing ... C.M. Rick Tomato Genetics Resource Center at UC Davis ... seed of both cultivated tomato varieties and related wild ... tomato genome sequence completed just two years ago, shows ...
(Date:10/14/2014)... past decades, we have seen numerous tragic examples where ... infants for social contact and stimulation has led to ... , Infancy and childhood are critical life periods that ... research suggests that enriched environments, full of interesting stimuli ... contrast, deprivation and stress may compromise cortical development and ...
Breaking Biology News(10 mins):Scripps Research Institute team receives $6.6 million to investigate deadly Lassa virus 2Institutional rearing may increase risk attention-deficit disorder 2
... Research from the University of California, San Diego ... compulsive behavior and cognitive defects associated with a ... Two pathways found to be defective in LND ... disease, such as Alzheimer,s and Parknson,s diseases, suggesting ...
... evolution. In today,s issue of the journal Science ... that the reverse is also true, and explores what ... change affects species and vice-versa. A classic example ... ground finch, Geospiza fortis. In this species, larger beaks ...
... to a statistically significant level to their sons, and the ... mother smokes it does not seem to impact on the ... smokes does not affect his daughter", Loureiro, a researcher at ... co-author of the study, tells SINC. The research, which ...
Cached Biology News:Genetic clues to compulsive, self-injurious behavior in rare childhood disorder 2Genetic clues to compulsive, self-injurious behavior in rare childhood disorder 3Smoking habits are transmitted from mother to daughter and father to son 2
(Date:10/19/2014)... 2014 The report "Chocolate, Cocoa Beans, ... Prices, Geography Trend and Forecast (2011 - 2016)," ... geography and studies the major market drivers, restraints, and ... and Asia. , The global chocolate market is expected ... in 2016 at an estimated CAGR of 2.7% from ...
(Date:10/18/2014)... October 19, 2014 The “Human ... Acting, Intermediate Acting, Premixed), Modern Human Insulin (Rapid ... Levemir, NovoRapid, Novomix, Tresiba, Others) - Forecast to ... drivers, restraints, challenges, opportunities, current market trends, and ... with the estimates and forecasts of the revenue ...
(Date:10/18/2014)... The Asia-Pacific hardware encryption display market report defines and ... forecast of revenue. This market was valued $5,154.0 million ... by 2018, at a CAGR of 58.4% from 2013 ... Asia-Pacific hardware encryption market report, to get an idea ... glimpse of the segmentation of the market, and is ...
(Date:10/18/2014)... (PRWEB) October 18, 2014 According to ... Resource & Well Type - Global Trends & Forecasts ... estimated $31 billion in 2011. This value is expected ... billion by 2017, with 10% CAGR during the same ... hydraulic fracturing production market in terms of hydraulic horse ...
Breaking Biology Technology:Chocolate Market Projected To Reach $98.3 Billion by 2016 - New Report by MarketsandMarkets 2Chocolate Market Projected To Reach $98.3 Billion by 2016 - New Report by MarketsandMarkets 3Chocolate Market Projected To Reach $98.3 Billion by 2016 - New Report by MarketsandMarkets 4Medical Human Insulin Market Is Expected to Reach $42 billion by 2019 - New Research Report by MarketsandMarkets 2Medical Human Insulin Market Is Expected to Reach $42 billion by 2019 - New Research Report by MarketsandMarkets 3Medical Human Insulin Market Is Expected to Reach $42 billion by 2019 - New Research Report by MarketsandMarkets 4Medical Human Insulin Market Is Expected to Reach $42 billion by 2019 - New Research Report by MarketsandMarkets 5The Asia-Pacific hardware encryption display market is expected to reach $51,362.6 million by 2018 - New Report by MicroMarket Monitor 2The Asia-Pacific hardware encryption display market is expected to reach $51,362.6 million by 2018 - New Report by MicroMarket Monitor 3Hydraulic Fracturing Market Projected To Reach $64 Billion by 2017 - New Report by MarketsandMarkets 2Hydraulic Fracturing Market Projected To Reach $64 Billion by 2017 - New Report by MarketsandMarkets 3Hydraulic Fracturing Market Projected To Reach $64 Billion by 2017 - New Report by MarketsandMarkets 4
... CHENGDU, China , June 3 /PRNewswire-Asia-FirstCall/ -- Tianyin,Pharmaceutical Co., Inc. (NYSE Amex: ... updated corporate presentation at the Company,s website: , , ... http://www.tianyinpharma.com , , , ... , , ...
... LONDON , June 2 The Libyan government has ... out forensic work on the remains of the passengers who died when ... (on 12.5.10). , , , ... one of the 104 people onboard the Airbus A330-200 perished - with ...
... June 2 Repligen Corporation (Nasdaq: RGEN ) announced today ... year 2010, on Wednesday, June 9th, 2010 , before the market opens. ... will host a conference call and webcast on the same day at ... update on the Company. , , ...
Cached Biology Technology:Tianyin Corporate Presentation Updated 2Libyan Air Crash DNA Samples to Trimega Laboratories for Analysis 2Repligen Announces Conference Call of Fourth Quarter and Fiscal Year 2010 Financial Results 2Repligen Announces Conference Call of Fourth Quarter and Fiscal Year 2010 Financial Results 3
... Soybean-Casein Digest Medium (TSB), USP is ... recommended for general laboratory use. Due to ... Peptone, the medium will support growth of ... serum, etc. , Product conforms to United ...
... Tissue Array (MSTA) slides were designed to study ... from multiple species. Tissue slices from three ... which can then be treated as a single ... in situ hybridization. This format allows ...
... Pulser Xcell eukaryotic system, 100 ... is used for electroporation of ... the main unit, CE module ... or square-wave pulses, ShockPod shocking ...
... used to predict the melting ... up to 3,200 bases, which ... primers and GC clamps for ... gel electrophoresis (DGGE), constant denaturing ...
Biology Products: