Saturday, January 02, 2010

Seeing the World through X-Ray Glasses

I've just read one of those irritating American articles by columnists that can't be bothered to even check things up before agitating the populace. Such people explain why there is very intelligent stuff coming out of the States as well as ridiculous moronic stuff. In this case, one Carol Felsenthal tries to liken airport scanners to 1950s fluoroscopy — a bit like saying your iPhone is like a chest x-ray.

For the benefit of those who like it pictorial, look at this picture. The millimetre-wave scanners suggested for use in airport scans produce radiation in the EHF range (wavelength roughly 10 mm), while x-rays are typically about 10 million to 100 million times stronger. You would get about 0.5 to 1.5 chest x-rays worth of radiation just by flying across the Pacific, as even the EPA admits.

In short, choosing to fly already exposes you to millions of times more radiation than being scanned at airport security. Heck, they could scan Carol Felsenthal a million times and she'd still receive less radiation than she would flying from her office to her holiday home. As for privacy concerns, I'd rather pass through the scanner than be patted down.

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1 Comments:

Blogger The Hierophant said...

At least there seems to be one person calling her bluff. RIdiculous, really. Or tragic. Or both.

Sunday, January 03, 2010 1:09:00 am  

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