----- Original Message ----- From: "Rob Studdert"
Subject: Re: New Tests Show Memory Cards Safe In X-Rays
On 20 Dec 2004 at 22:47, Andreas Hoffmann wrote:
Actually I don't care so much about the memory, I'm more worried about any
damage that could happen to my CCD! This was not tested... What a pitty.
CCDs are damaged by X-rays, they bleach and suffer other problems, there is
plenty of technical information on the web to confirm this. However information
relative to airport x-ray systems and consumer DSLRs seems to be nil. I suppose
it's much like film vs x-rays, despite the warnings and documentation there are
still a lot of photographers out there who will swear that multiple x-ray
passes had absolutely no effect on their exposed 800 ISO print films :-)
Film is much more easily x-ray damaged after it has been exposed than when unexposed.
Even fairly high dose x-rays may cause no or imperceptable exposure on film that has not gone over the exposure threshold.
William Robb
