Project: Distributed Nuclear Detection by Ubiquitous Cell Phone

Posted by Alex.Lindahl on October 22nd, 2008
Distributed Nuclear Detection by Ubiquitous Cell Phone

Dirty bombs (the ones that spread lethal radiation) have been an increasing concern for national security since 9/11, there’s no surprise there. However, even though security has been beefed up and we have advanced technology to detect radiation, its still very difficult due to false alarms. According to an article in Newsweek, (believe it or not) bananas, smoke alarms, toilets and large granite buildings all have enough radiation to set off expensive radiation detectors. On top of that, the 350,000 radiation-therapy patients have a tendency of setting them off too, if they get too close.

Because of these variables, radiation detectors are only effective in entrances and check points that you normally see in airports and large events. So, how can we pin point dirty bombs in a more effective way? How can we design a system that not only works in airports, but in large cities, where dirty bombs are also likely to cause threats. A team at Purdue University in Indiana is designing radiation technology so small that it can fit into cell phones. Newsweek reports:

"The project, known as Distributed Nuclear Detection by Ubiquitous Cell Phone, would help locate dirty bombs or nuclear weapons by "triangulating" the source of radiation when people carrying mobile phones pass by. (The greater the number of equipped cell phones, the greater the precision: phones closest to radioactive material would register stronger signals.) The Purdue project and others like it represent a "major shift" in combating radiation terrorism, says Rita Colwell, a former director of the National Science Foundation and now a professor at the University of Maryland."

In order for it to work, they will obviously have to lobby Congress into requiring the device in all phones. It will be interesting to see if citizens would have to opt-in and if they would even be okay with it. I don’t think its much to give up (if anything really) to gain a little more piece of mind. Will the iPhone become a bomb sniffer too?

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