Torch-sized devices will detect disease and weapons
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.
Media Contact
More Information:
http://www.essex.ac.uk/newsAll latest news from the category: Physics and Astronomy
This area deals with the fundamental laws and building blocks of nature and how they interact, the properties and the behavior of matter, and research into space and time and their structures.
innovations-report provides in-depth reports and articles on subjects such as astrophysics, laser technologies, nuclear, quantum, particle and solid-state physics, nanotechnologies, planetary research and findings (Mars, Venus) and developments related to the Hubble Telescope.
Newest articles
High-energy-density aqueous battery based on halogen multi-electron transfer
Traditional non-aqueous lithium-ion batteries have a high energy density, but their safety is compromised due to the flammable organic electrolytes they utilize. Aqueous batteries use water as the solvent for…
First-ever combined heart pump and pig kidney transplant
…gives new hope to patient with terminal illness. Surgeons at NYU Langone Health performed the first-ever combined mechanical heart pump and gene-edited pig kidney transplant surgery in a 54-year-old woman…
Biophysics: Testing how well biomarkers work
LMU researchers have developed a method to determine how reliably target proteins can be labeled using super-resolution fluorescence microscopy. Modern microscopy techniques make it possible to examine the inner workings…
