Yes, CT also uses xray. In fact the new two-step checked baggage uses low-level xray then high power CT if required. It is "kinder and gentler" and saves wear-n-tear on the higher cost CT equipment. Rather than believe threads it is better to read mfg specs (all on-line).
Two summers ago, I went to Vienna, Salzburg and Berlin. I started and ended in NY. While in the US, you can ask for a hand inspection and they must oblige, the EU doesn't have a policy like this. So there were a few zaps of carry-on luggage in the EU, plus the handful of film I brought with me into the Reichstagsgebäude. So that's 3 zaps for most rolls with a handful getting 4. No issues with development. I even marked the ones that got four zaps of x-rays instead of three to see if there would be a difference since I had no idea how strong the x-rays were there. Not a single problem.
Film included:
Adox CMS 20
Neopan 1600
Provia 100F
Provia 400x
US carry on scanners aren't all film safe which is why they'll allow hand checking, however in the UK/Europe they are safe and virtually all airports will refuse to hand check film. Even if you hand them the film boxes for checking they will still scan the film, there may be a the very odd exception.
Unlike the UK/Europe the US has a large number of smaller commercial airports and not all have modern scanners, my own experience was that even in a major hub airport the scanners were years old compared to the ultra modern scanners I've seen in UK/Europe, South Aerica etc.
Ian
Kodak's previous published wisdom a few years ago:
- With film of ISO 400 and less, the carry-on baggage scanner is safe for multiple passes of the film thru scanner
- With film of ISO 1600 and higher, try to get your film hand inspected (which NEVER WORKS in London Heathrow airport!!!!)
- NEVER EVER put your film thru checked luggage, which is put thru a CT Scan which will ruin unprocessed film
I'd love to see the supporting documentation that any US carry-on is not filmsafe. Which airport and which make or model of screening device?
The visual inspection and trace detection was intended to address high-speed film sensitivity to xray.
Kodak's current stance, which seems to indicated that there may in fact be higher exposure scanners in use for some hand carryons! Note, however, that this is for motion picture films, which Kodak had previously mentioned as more prone to fogging.Quote:
Originally Posted by BrianShaw
http://motion.kodak.com/motion/Suppo...ys_airport.htm
"Carry-on baggage inspection conveyors using low intensity x-rays, used at security checkpoints in US airports, usually do not affect film. However, these machines may now be supplemented in some cases by high intensity machines that will fog all unprocessed film. Travelers should be wary of all scanners at foreign airports."
That wisdom is based on industry research done for FAA, and the scanners have become even more film-friendly since then!
Quote:
Originally Posted by wiltw
Brian, read my post 16!
That is a decade old, amigo.
Quote:
Originally Posted by wiltw
Carry on scanners have been updated and reaced at least twicw since Kodak issued that notice.Quote:
Originally Posted by wiltw