- Jul 30, 2003
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Will a lead lined film protector bag block x-ray scanners from detecting the contents of a package?
- Thread starter newParadigm
- Start date
Yes, if it did they will see a big object that they cant see through, and then theyll stick thier hands up your anus. But I'm not here to judge, whatever turns you on man.
- Jul 30, 2003
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- Jul 30, 2003
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They aren't? Then how do they catch those guys that import scheduled meds without a perscription? (do they just look for suspicous packaging?)
For the most part they don't. until they get a line on who's shipping them in, and where from. then they start noting where they are going, after inspecting them.
I know a lot of people that have recieved unprescribable drugs in the mail and never got caught. The risk is there it's small, but more than i would take.
Even if it does work It's still not going to stop the dogs from being able to sniff his stash....
Well, they don't actually say how much lead is in the bag. However, I'm guessing that the 'XPF' means something like X-ray protection factor of 8 (which I assume means 87.5% reduction through 1 layer of the bag). This is consistent with approx 0.35 mm of lead foil thickness calculated from the bag's weight.
As the X-ray beam would have to pass through 2 surfaces of the bag in order to reveal any internal details of the bag's contents, the beam would be reduced by about 98%. Given the limitations of X-ray detecors, the resulting image will have no useful detail in the region of the bag, not even with software enhancement.
However the X-ray protection factor assumes a certain energy of X-rays (I'm guessing around a 150 kV source), such as may be used in the conventional X-ray scanners.
However, more and more airports are installing CT scanners, instead of plain X-ray machines - these scanners often operate with much more penetraing X-rays (up to 300 kV sources). At these energies, that lead bag will probably block only about 50% of the beam - allowing excellent detail of what's inside (as well as clearly identifying the bag as being made from lead). The other take away point, in case you are thinking of shipping high-grade film, is that these bags offer essentially no X-ray protection against these CT scanners.
As the X-ray beam would have to pass through 2 surfaces of the bag in order to reveal any internal details of the bag's contents, the beam would be reduced by about 98%. Given the limitations of X-ray detecors, the resulting image will have no useful detail in the region of the bag, not even with software enhancement.
However the X-ray protection factor assumes a certain energy of X-rays (I'm guessing around a 150 kV source), such as may be used in the conventional X-ray scanners.
However, more and more airports are installing CT scanners, instead of plain X-ray machines - these scanners often operate with much more penetraing X-rays (up to 300 kV sources). At these energies, that lead bag will probably block only about 50% of the beam - allowing excellent detail of what's inside (as well as clearly identifying the bag as being made from lead). The other take away point, in case you are thinking of shipping high-grade film, is that these bags offer essentially no X-ray protection against these CT scanners.
- Jul 30, 2003
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There is no foolproof way to protect your film. I used to work for a labratory supply company that would sell all manner of exotic film... sometimes well over $100 a box and film would come back all of the time because it was ruined in transport by dickhead TSA employees.
The best way to avoid getting your stuff scanned too extensivley is to pay for the fastest possible shipping (super duper overnight/custom critical) or send it via private frieight couriers.
The best way to avoid getting your stuff scanned too extensivley is to pay for the fastest possible shipping (super duper overnight/custom critical) or send it via private frieight couriers.
Are you really trying to prevent damage to your film or are you trying to prevent authorities from detecting the "film"?
And now my question is, whats so secret that you have to ship it in a lead lined container? You some kind of terrorist?
- Jul 30, 2003
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Its no secret, just something that isn't technically illegal, but seems to get snatched at customs.
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