Navigation Links
Checking people at airports -- with terahertz radiation
Date:9/18/2008

This press release is available in German.

Within the last few years the number of transport checks above all at airports has been increased considerably. A worthwhile effort as, after all, it concerns the protection of passengers. Possibilities for new and safe methods of transport checks are offered by terahertz radiation. Before this radiation can be used for this purpose, however, it has to be measured quantitatively, so that damage to health caused by radiation can be ruled out. The exact measurement of this type of radiation has now been successfully undertaken by the Physikalisch-Technische Bundesanstalt (PTB), the German national metrology institute, for the first time.

Radiation in the THz range (with wavelengths from 30 m to 3000 m and frequencies from 0.1 THz to 10 THz) penetrates clothing and many other organic materials and furthermore offers spectroscopic information on safety-relevant materials such as explosives and pharmacological substances. The broad spectrum of the possible applications extends from security check to the investigation of the spatial and/or time structure of the electron packages in the storage rings for synchrotron radiation production and in free-electron lasers, for which the receivers of the German Electron Synchrotron DESY characterized here are used.

The complete information on the THz spectra can only be determined with detectors of known spectral responsivity. Up to now, the integral responsivity of the respective detectors and their spectral distribution are still largely unknown. The PTB has now for the first time determined the spectral responsivities of two THz detectors in the wavelength range from 50 m to 600 m with the aid of cavity radiators.

In order to make available spectral radiation fluxes in the THz range, calculable according to Planck's radiation law, the PTB uses two THz
'/>"/>

Contact: Berndt Gutschwager
berndt.gutschwager@ptb.de
49-303-481-7323
Physikalisch-Technische Bundesanstalt (PTB)
Source:Eurekalert

Page: 1 2

Related biology news :

1. Older people who diet without exercising lose valuable muscle mass
2. Genes may make some people more prone to anxiety
3. People with heart disease still have trouble controlling blood lipid levels
4. Robotics research: Enhancing the lives of people with disabilities
5. Simian foamy virus found in several people living and working with monkeys in Asia
6. Why do people vote? Genetic variation in political participation
7. Nitric oxide regulates plants as well as people
8. People with diabetes may have all natural citrus supplement
9. Veterinary college researcher studying brain tumors in people and animals
10. Most people believe smallpox not an extinct disease
11. Impacts of fossil fuels on fish and people
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:1/22/2015)... TORONTO , Jan. 13, 2015 /PRNewswire/ - Today, FindBiometrics, the ... announced the launch of its new website design. ... in its infancy", says Peter O,Neill , founder and ... ever, the industry needs involvement from the key players on ...
(Date:1/22/2015)... man-made form of insulin delivered by nasal spray may ... with mild cognitive impairment and Alzheimer,s disease dementia, according ... Forest Baptist Medical Center. The study,s subjects ... (MCI) or mild to moderate Alzheimer,s dementia (AD). Those ...
(Date:1/22/2015)... , Europe,s ... European Patent Office to present a video retrospective of the most ... featured: Christofer Toumazou and Sophie Wilson   ... of the Award   Starting on 22 January 2015 ...
Breaking Biology News(10 mins):Identity Industry Leading Publication Debuts New Look As Biometrics Hit Mainstream 2Nasal Spray with Insulin Equivalent Shows Promise as Treatment for Adults with Mild Cognitive Impairment, Alzheimer's Dementia 2Nasal Spray with Insulin Equivalent Shows Promise as Treatment for Adults with Mild Cognitive Impairment, Alzheimer's Dementia 3Ten Years of the European Inventor Award: A Retrospective Look at the Inventors and Ideas That Have Changed Our Lives 2Ten Years of the European Inventor Award: A Retrospective Look at the Inventors and Ideas That Have Changed Our Lives 3
... easier to find things claiming to be sustainable than it ... University geographer is trying to pin down exactly what sustainability ... it. Her goal is to better understand what is important ... sustain with the hope that this will later help civic ...
... St. Joseph, Michigan A new internet-based tool for ... involved and to optimize design by allowing rapid development ... issue of Resource: Engineering & Technology for a ... Biological and Agricultural Engineering at the University of Missouri, ...
... Osteoporosis Foundation (IOF) today shows that osteoporosis is a serious ... 14 Asian countries, regions or territories, ,The Asian Audit, is ... countries as well as collectively across the region. The report,s ... is predicted for Asia as a whole , Already hip ...
Cached Biology News:K-State geographer working to clarify what sustainability really means to rural decision-makers 2Web-based innovation improves, eases agricultural terrace design 2New report shows rising tide of fractures in Asia 2New report shows rising tide of fractures in Asia 3
(Date:2/27/2015)... 2015 A paper published today, " ... " in Science Translational Medicine, demonstrates ... reduce the risk associated with investing in the ... levels of funding for developing so-called "orphan" drugs. ... collaboration between scientists at the National Center for ...
(Date:2/27/2015)... 27, 2015 Immunovaccine Inc. (“Immunovaccine”) ... company, today announced that the U.S. Food and ... Track designation and Phase I clinical trials of ... the mutual co-development agreement signed with Gilead Life ... designation for the DPX-Survivac. , “We have been ...
(Date:2/27/2015)... ADELAIDE, Australia , Feb. 27, 2015 ... data from the DisrupTOR-1 trial of BNC105 in patients ... Symposium in Orlando, Florida . The ... of the City of Hope Comprehensive Cancer Center ... presentation. The new data identifies Ferritin ...
(Date:2/27/2015)... 2015 FamilyFarms Group is pleased to ... State Line Farms, received the 2015 Tomorrow’s Top Producer ... the age of 35, who has demonstrated excellence in ... to win the Tomorrow's Top Producer Horizon Award. Every ... Top Producer Award and learning from their experiences. It ...
Breaking Biology Technology:New Financing Technique May Hold Key to Unlocking Funding for Rare Diseases 2New Financing Technique May Hold Key to Unlocking Funding for Rare Diseases 3New Financing Technique May Hold Key to Unlocking Funding for Rare Diseases 4Immunovaccine Inc. (TSX: IMV) receives Fast Track and Phase I trial approval for Ebola and Anthrax vaccine programs, signs co-development agreement with Gilead Sciences 2Immunovaccine Inc. (TSX: IMV) receives Fast Track and Phase I trial approval for Ebola and Anthrax vaccine programs, signs co-development agreement with Gilead Sciences 3New BNC105 Biomarker Data to be Presented at US Cancer Conference 2New BNC105 Biomarker Data to be Presented at US Cancer Conference 3New BNC105 Biomarker Data to be Presented at US Cancer Conference 4New BNC105 Biomarker Data to be Presented at US Cancer Conference 5Matt Sims Receives the 2015 Tomorrow’s Top Producer Horizon Award 2
... The U.S. Food and Drug,Administration (FDA) has ... treatment for complicated intra-abdominal and complicated urinary,tract ... a wide range of Gram-positive(1) and Gram-negative(2),bacteria ... serious infections. DORIBAX belongs to a ...
... 15 Wyeth,Pharmaceuticals, a division of Wyeth (NYSE: ... today at the 63rd Annual Meeting of the ... who received 100 mg/day or,150 mg/day of desvenlafaxine, ... significant reduction in moderate to severe,vasomotor symptoms (VMS) ...
... Telik, Inc.,(Nasdaq: TELK ) announced that ... the partial hold on TELCYTA(R) (canfosfamide HCl, TLK286),clinical ... TELCYTA data by,the agency and permits the resumption ... Palo Alto, CA is a biopharmaceutical company focused ...
Cached Biology Technology:FDA Approves DORIBAX(TM) for the Treatment of Complicated Intra-Abdominal and Complicated Urinary Tract Infections 2FDA Approves DORIBAX(TM) for the Treatment of Complicated Intra-Abdominal and Complicated Urinary Tract Infections 3FDA Approves DORIBAX(TM) for the Treatment of Complicated Intra-Abdominal and Complicated Urinary Tract Infections 4FDA Approves DORIBAX(TM) for the Treatment of Complicated Intra-Abdominal and Complicated Urinary Tract Infections 5Study Data Results Showed Desvenlafaxine Significantly Reduced Moderate to Severe Vasomotor Symptoms in Menopausal Women Versus Placebo 2Study Data Results Showed Desvenlafaxine Significantly Reduced Moderate to Severe Vasomotor Symptoms in Menopausal Women Versus Placebo 3Study Data Results Showed Desvenlafaxine Significantly Reduced Moderate to Severe Vasomotor Symptoms in Menopausal Women Versus Placebo 4Study Data Results Showed Desvenlafaxine Significantly Reduced Moderate to Severe Vasomotor Symptoms in Menopausal Women Versus Placebo 5FDA Removes Partial Hold on TELCYTA Clinical Development 2
... is obtained from non-demolished blood ... fasted donors. The donors are ... and are maintained on an ... Protein Concentration : 85 mg/ml ...
... Captiva 96-well Filter Plates are offered ... and 0.45 um depth filter plates are ... LC/MS analysis. Filtration is simple, versatile, and ... columns. The Captiva 10 um glass fiber ...
... CyScribe First-Strand cDNA Labeling System ... Kit, 50 reactions. For the generation ... cDNA.Optimized reagents are packaged together for ... optimized protocols can be used for ...
Collected from sexually mature, mixed sex, mixed breed dogs. Serum from specific breeds available by request....
Biology Products: