Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Torch-sized devices will detect disease and weapons

11.10.2005


Researchers at the University of Essex have been awarded almost £1.2 million as part of a programme to develop a new generation of portable, handheld radiation detectors that could have a range of potential applications from disease diagnosis to weapons detection.



The new devices, which would be the size of a normal torch, will detect radiation in the THz (terahertz) region of the electromagnetic spectrum. It is hoped they could be used in applications such as screening for explosive chemicals or drugs to help with security and crime prevention, to look for pollution in the local environment, and by doctors to help diagnosis.

The collaborative project, funded by grants from the Engineering and Physical Sciences Research Council totalling £2 million, is being conducted by a team of researchers in the Department of Electronic Systems Engineering in collaboration with academics from UCL (University College London), the Universities of Bath and Leeds, and the Centre for Integrated Photonics Ltd in Ipswich.


Professor Henning, who is leading the team, explained: ’THz radiation falls between the infrared and microwave regions of the electromagnetic spectrum and can be imagined as either very high frequency radio waves, or as light which is invisible to the naked eye.

’For a long time it has been quite difficult to generate and detect THz, but, in recent years people have used large, powerful lasers to create pulses of THz radiation. This has proved very useful in medical applications to build up pictures of body tissue, rather like an x-ray, which can show up abnormalities. However, such devices require a large power supply and are usually bulky. With a small, low power device, which can run off batteries, the possibilities for practical applications open up enormously.’

Other interesting areas for application include using THz in fossil imaging, analysing chemicals in gases, and as part of astronomical observations.

The Portable Terehertz Systems Based on Advanced InP Technology (PORTRAIT) project is due to be completed in 2008.

Kate Clayton | alfa
Further information:
http://www.essex.ac.uk/news

More articles from Physics and Astronomy:

nachricht SF State astronomer searches for signs of life on Wolf 1061 exoplanet
20.01.2017 | San Francisco State University

nachricht Molecule flash mob
19.01.2017 | Technische Universität Wien

All articles from Physics and Astronomy >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Traffic jam in empty space

New success for Konstanz physicists in studying the quantum vacuum

An important step towards a completely new experimental access to quantum physics has been made at University of Konstanz. The team of scientists headed by...

Im Focus: How gut bacteria can make us ill

HZI researchers decipher infection mechanisms of Yersinia and immune responses of the host

Yersiniae cause severe intestinal infections. Studies using Yersinia pseudotuberculosis as a model organism aim to elucidate the infection mechanisms of these...

Im Focus: Interfacial Superconductivity: Magnetic and superconducting order revealed simultaneously

Researchers from the University of Hamburg in Germany, in collaboration with colleagues from the University of Aarhus in Denmark, have synthesized a new superconducting material by growing a few layers of an antiferromagnetic transition-metal chalcogenide on a bismuth-based topological insulator, both being non-superconducting materials.

While superconductivity and magnetism are generally believed to be mutually exclusive, surprisingly, in this new material, superconducting correlations...

Im Focus: Studying fundamental particles in materials

Laser-driving of semimetals allows creating novel quasiparticle states within condensed matter systems and switching between different states on ultrafast time scales

Studying properties of fundamental particles in condensed matter systems is a promising approach to quantum field theory. Quasiparticles offer the opportunity...

Im Focus: Designing Architecture with Solar Building Envelopes

Among the general public, solar thermal energy is currently associated with dark blue, rectangular collectors on building roofs. Technologies are needed for aesthetically high quality architecture which offer the architect more room for manoeuvre when it comes to low- and plus-energy buildings. With the “ArKol” project, researchers at Fraunhofer ISE together with partners are currently developing two façade collectors for solar thermal energy generation, which permit a high degree of design flexibility: a strip collector for opaque façade sections and a solar thermal blind for transparent sections. The current state of the two developments will be presented at the BAU 2017 trade fair.

As part of the “ArKol – development of architecturally highly integrated façade collectors with heat pipes” project, Fraunhofer ISE together with its partners...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Sustainable Water use in Agriculture in Eastern Europe and Central Asia

19.01.2017 | Event News

12V, 48V, high-voltage – trends in E/E automotive architecture

10.01.2017 | Event News

2nd Conference on Non-Textual Information on 10 and 11 May 2017 in Hannover

09.01.2017 | Event News

 
Latest News

Helmholtz International Fellow Award for Sarah Amalia Teichmann

20.01.2017 | Awards Funding

An innovative high-performance material: biofibers made from green lacewing silk

20.01.2017 | Materials Sciences

Ion treatments for cardiac arrhythmia — Non-invasive alternative to catheter-based surgery

20.01.2017 | Life Sciences

VideoLinks
B2B-VideoLinks
More VideoLinks >>>