Glenn wrote: > IIRC the _checked_baggage_ X-ray machines can vary the intensity. > (Not that this contradicts anything folks have said about the > carry-on X-rays, even if I'm right.) I didn't think the carry-on > scanners could be turned up.
Hi Glenn, At the UK's busiest international airports, the scanners that are used to "X-ray" checked baggage and carry-on baggage are in fact *identical*. Not only can they both be 'turned up', but that is how they are routinely used if the find a lead bag or anything else that will not scan. Tests have shown that no film (of any ISO speed) is safe. They all get fogged, and that happens even if the machine is not set to its maximum level. This is a new situation, one that has only happened since fall (autumn) of 2002, so most people's previous experience can no longer be relied upon. I understand that the reason for the new machines (and the new policy of not offering hand searches) is the recent development of new explosives and plastic detonators that could not be picked up by the previous scanners. Regards, John
