Feeds

Invisible-shed spy beam tech detects hidden artworks

T-rays to reveal Da Vinci's lost masterpiece

Providing a secure and efficient Helpdesk

Last week was a big one for those who like their T-rays. The spy-beam technology has been used to view murals hidden beneath inches of plaster, and has also been linked to metamaterials - the stuff from which invisible sheds could be made.

In the first development, art boffins from Paris's famous Louvre museum - collaborating with American colleagues - announced they had used T-ray scanners to "detect coloured paints and a graphite drawing of a butterfly through 4mm of plaster". The technique could apparently be used in many similar feats.

"In France alone, you have 100,000 churches," said Professor Gèrard Mourou of the Laboratoire d'Optique Appliquèe, one of the team behind the T-ray plaster probe.

"In many of these places, we know there is something hidden. It has already been written about. This is a quick way to find it."

Mourou noted that a famous Leonardo da Vinci painting, "The Battle of Anghiari", is thought to lie hidden behind a fresco at the Palazzo Vecchio in Florence. The culture-loving electronics prof reckoned that T-ray imaging would allow the world to see da Vinci's masterpiece once again without damaging the overlying art.

Meanwhile, other T-ray boffins from Blighty and Spain were working on a way to control and guide the tricky spy beams, which is difficult using ordinary substances such as metal.

"T-rays have the potential to revolutionise security screening for dangerous materials such as explosives," said Dr Stefan Maier of Imperial College.

"Until now it hasn't been possible to exert the necessary control and guidance... for it to have been usable in real world applications. We have shown with our material that it is possible to tightly guide T-rays along a metal sheet, possibly even around corners, increasing their suitability for a wide range of situations."

The alternative stuff in question is so-called "metamaterial", much loved by physicists for its various qualities - not least the possibilities it offers of building invisible sheds and levitating ultrathin baco-foil mirrors.

T-rays get their name from their terahertz frequencies, lying between microwave RF and the far infrared - or as some say, between electronics and optics.

It could be good to use T-rays rather than X-rays for security, as this would allow the everyday scanning of people without upping their cancer risk. Quite apart from the possible speeding-up of airport queues, this would also allow the entry checks at secret spy agencies to finally live up to their movie image.

Brit warboffinry spinoff Qinetiq hopes so, anyway, and has managed to sell some T-ray gear to the American homeland-security people.

Qinetiq prefers the term "millimetre wave" to "T-ray", but one man's millimetre-wave radar is another's T-ray spy beam. Qinetiq's gear is passive, however: it scans the T-rays naturally emitted by human bodies and using automated software to check for non-emitting materials like metal, plastic, or ceramics.

If the easily-usable active gear has to wait for metamaterials from the lab at Imperial, though, it might be a while coming. The days of the through-clothes spy spectacle rig are not upon us quite yet, though the through-clothes airport scanner has already been trialled. But when the proper new metamaterial gear comes in, presumably the only place to hide will be in one's invisible shed. ®

Internet Security Threat Report 2014

More from The Register

next story
MARS NEEDS WOMEN, claims NASA pseudo 'naut: They eat less
'Some might find this idea offensive' boffin admits
LOHAN crash lands on CNN
Overflies Die Welt en route to lively US news vid
Comet Siding Spring revealed as flying molehill
Hiding from this space pimple isn't going to do humanity's reputation any good
Experts brand LOHAN's squeaky-clean box
Phytosanitary treatment renders Vulture 2 crate fit for export
No sail: NASA spikes Sunjammer
'Solar sail' demonstrator project binned
Carry On Cosmonaut: Willful Child is a poor taste Star Trek parody
Cringeworthy, crude and crass jokes abound in Steven Erikson’s sci-fi debut
Origins of SEXUAL INTERCOURSE fished out of SCOTTISH LAKE
Fossil find proves it first happened 385 million years ago
Human spacecraft dodge COMET CHUNKS pelting off Mars
Odyssey orbiter yet to report, though - comet's trailing trash poses new threat
prev story

Whitepapers

Forging a new future with identity relationship management
Learn about ForgeRock's next generation IRM platform and how it is designed to empower CEOS's and enterprises to engage with consumers.
Why and how to choose the right cloud vendor
The benefits of cloud-based storage in your processes. Eliminate onsite, disk-based backup and archiving in favor of cloud-based data protection.
Three 1TB solid state scorchers up for grabs
Big SSDs can be expensive but think big and think free because you could be the lucky winner of one of three 1TB Samsung SSD 840 EVO drives that we’re giving away worth over £300 apiece.
Reg Reader Research: SaaS based Email and Office Productivity Tools
Read this Reg reader report which provides advice and guidance for SMBs towards the use of SaaS based email and Office productivity tools.
Security for virtualized datacentres
Legacy security solutions are inefficient due to the architectural differences between physical and virtual environments.