As I said. That is a myth. The operator can’t change the “intensity”. They can change color filtration and contrast of the image on screen, not the level of radiation.Thanks for the input on US airports!
Never put a lead bag thru the scanner. They’ll just dial up the intensity and blast thru.
Neither Narita nor Haneda employs CT scanners (or at least they didn't do in June).
I would doubt they do in Mexico City.
According to our US members, hand inspection seems to be almost a human right in the USA - so I don't imagine that would be a problem in LAX.
I routinely let my film (400ISO) go through the standard x-ray scanners and don't bother with hand inspection.
The intercontinental trips typically have 6 or more passes out and home and I see ill no effect, so I don't bother looking for film sources at the destination - I find that to be more of a gamble than the exposure to radiation.
I have just started using a Domke lead bag as insurance in case I run into a CT scanner.
The result is that most places will pull you to the side for a manual inspection, therefore I now put the lead bag outside my carry-on next to my labtop, so they don't have to dive into my bag.
The myth that the x-ray operators increase the radiation when encountering lead protection is just that - a myth. The operator cannot change radiation, only filtration.
..... Does it get you through with film more easily?
X-ray is BW but the system applies colours depending on density, often filtrated into a green and red channel. The operator can change the threshold filtration/separation to better see outlines of objects.What is filtration?
X-ray is BW but the system applies colours depending on density, often filtrated into a green and red channel. The operator can change the threshold filtration/separation to better see outlines of objects.

There is NO issue with "getting film through" the carry on baggage screening check points in the US airports. You can always request and will receive a physical inspection of photo-sensitive materials. The only time people have "issues" is when they are assholes. Be early, be courteous and polite, smile, do everything you can to make the job easier for them...and prepare to be amazed.
...and yes, I am familiar with the TSA PreCheck thing. I had it when I traveled for work. At some airports, at some airlines, it gets you through the line faster...sometimes a lot faster...usually, because you get to wait in a special line....but sometimes, at some airlines, or airports or during certain times of heavy tourist travel, it amounts to precisely jack sqat.
My question really was what does TSA do if you have the pre-approved special pass? Do they check film containers? Do they check you at all? Anyone here who has the pass?
My question really was what does TSA do if you have the pre-approved special pass? Do they check film containers? Do they check you at all? Anyone here who has the pass?
TSA has a procedure for Americans that allow pre clearance enrollment to speed airport processing. I think it's around $100 for the life time enrolment card.
Is anyone familiar with this process? Does it get you through with film more easily?
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Yeah mate. I feel kinda stupid but totally agree with you. It does sound like a myth.As I said. That is a myth. The operator can’t change the “intensity”. They can change color filtration and contrast of the image on screen, not the level of radiation.
I am only worried about CT scanners.
Only you can decide how much trouble you are willing to put up with, of course.
Have a great trip.
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