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Science/Tech
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Title: Britain makes camera that "sees" under clothes
Source: Raw Story
URL Source: http://www.rawstory.com/news/mochil ... a_that_sees_unde_03092008.html
Published: Mar 9, 2008
Author: Reuters
Post Date: 2008-03-09 15:03:03 by robin
Keywords: None
Views: 167
Comments: 5

LONDON (Reuters) - A British company has developed a camera that can detect weapons, drugs or explosives hidden under people's clothes from up to 25 meters away in what could be a breakthrough for the security industry.

The T5000 camera, created by a company called ThruVision, uses what it calls "passive imaging technology" to identify objects by the natural electromagnetic rays -- known as Terahertz or T-rays -- that they emit.

The high-powered camera can detect hidden objects from up to 80 feet away and is effective even when people are moving. It does not reveal physical body details and the screening is harmless, the company says.

The technology, which has military and civilian applications and could be used in crowded airports, shopping malls or sporting events, will be unveiled at a scientific development exhibition sponsored by Britain's Home Office on March 12-13.

"Acts of terrorism have shaken the world in recent years and security precautions have been tightened globally," said Clive Beattie, the chief executive of ThruVision.

"The ability to see both metallic and non-metallic items on people out to 25 meters is certainly a key capability that will enhance any comprehensive security system."

While the technology may enhance detection, it may also increase concerns that Britain is becoming a surveillance society, with hundreds of thousands of closed-circuit television cameras already monitoring people countrywide every day.

ThruVision came up with the technology for the T5000 in collaboration with the European Space Agency and from studying research by astronomers into dying stars.

The technology works on the basis that all people and objects emit low levels of electromagnetic radiation. Terahertz rays lie somewhere between infrared and microwaves on the electromagnetic spectrum and travel through clouds and walls.

Depending on the material, the signature of the wave is different, so that explosives can be distinguished from a block of clay and cocaine is different from a bag of flour.

(Reporting by Luke Baker)

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#1. To: robin (#0)

the screening is harmless, the company says.

Radiation does not cause cancer, the company sez.

angle  posted on  2008-03-09   15:10:27 ET  Reply   Trace   Private Reply  


#2. To: angle (#1)

Radiation does not cause cancer, the company sez.

Well, if it's completely passive and doesn't emit any radiation, then it should be safe.

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Pinguinite  posted on  2008-03-09   17:27:31 ET  Reply   Trace   Private Reply  


#3. To: Pinguinite (#2)

Well, if it's completely passive and doesn't emit any radiation, then it should be safe.

The technology works on the basis that all people and objects emit low levels of electromagnetic radiation.

Terahertz rays lie somewhere between infrared and microwaves on the electromagnetic spectrum and travel through clouds and walls.

angle  posted on  2008-03-09   20:22:21 ET  Reply   Trace   Private Reply  


#4. To: angle (#3)

Correct, so (it seems) it's not the instrument that emits radiation. People do as a matter of course, so the instrument merely reads that radiation that is given off. That would be a passive measuring device.

An xray machine is an example of something that actively emits radiation in order to determine results as x-rays are typically not present in the environment.

We emit body heat which is a form of radiation, but we don't consider thermometers, which measure that radiation, a cancer risk because we put in our mouths or against our skin. So if this machine works purely by reading natural emanations of "radiation" from the body then it's pretty safe to conclude it's no cancer risk.

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Pinguinite  posted on  2008-03-09   20:33:38 ET  Reply   Trace   Private Reply  


#5. To: robin (#0)

Depending on the material, the signature of the wave is different, so that explosives can be distinguished from a block of clay and cocaine is different from a bag of flour.

Yeh, but with the trigger happy cops, they'll taser your ass and check what you got under your clothes by stripping you down in public claiming they weren't sure what contraband you were hiding. Just another probable cause tool .

I wonder what they will do to all those women who are sporting all that extra jewelry in their belly buttons and down there?

LACUMO  posted on  2008-03-09   20:35:08 ET  Reply   Trace   Private Reply  


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