RE: Silly question time

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I agree with your comments about not putting sensitized material in checked
luggage.  In addition to the concern about exposure to x-ray is the
significant risk that it will go to Outer Kushna even though your
destination is Cleveland.

There has been significant testing in recent years that has determined that
x-ray screening of ordinary film in carry-on bags does not do perceptable
harm.  Granted, the assumption is that the screening equipment is maintained
within standards.  That's a good assumption in North America and at major
airports in other places.  But if you are in an exotic location, you may
find that either older and less well maintained scanning equipment, much
looser scanning standards, or both.

By the way - the notion that the inspectors can "turn up the intensity of
the x-ray" is pure urban legend.  Giving inspectors that ability would
create enormous safety issue.  They do have theh ability to adjust the
intensity and contrast of the image on their CRT, but not the x-ray energy
level.

Paper is much less sensitive than film, and therefore should be even more
safe.

My experience is that allowing the inspectors to pass the film through their
x-ray system is faster and less likely to result in damage than requesting a
hand inspection.  If nothing in the x-ray excites their interest, the
inspectors will let the carryon proceed without any further bother.  One of
the things in our favor is that most airports have been redesigned to allow
passengers to make most connections without having to leave the secured
area, thereby minimizing the number of inspections required.

For many years, I traveled (extensively) with a camera and film in a lead
bag.  I just sent my carryon through the x-ray, and the extra density of the
lead bag excited the inspectors attention less than 10% of the time.

You have the right to request that service in the US - but not necessarily
in other locations.  If you expect to ask for hand inspection, be reasonable
and plan to arrive earlier to allow for the extra time.  TSA inspectors are
much better trained that the minimum-wage types who did screening prior to
9/11.  Their training exposes them to things like sheet film, and the use of
changing bags to inspect film manually rather than visibly.  And in most
instances, the procedure will be to swab the enclosure to detect explosive
residues - that's faster and accomplishes what is required better than a
visual inspection.  

It is advisable to take 35mm film out of its plastic canister and put it in
a clear plastic bag that the inspectors can see through.  The folks I know
who travel frequently with LF equipment suggest taking along an empty
three-part film box to show the inspectors how film is packaged, and a
changing bag in case they want to check your boxes.  Actually, I have heard
(but can't confirm) that the inspection stations at major US airports are
equipped with changing bags.

If you are truly paranoid, the choices are to either purchase and process
the film along the way, or else ship it separately via a carrier who
understands that it is sensitized material and who will guarantee not to put
it through x-ray scanning.


Louie 

-----Original Message-----
From: owner-photoforum@xxxxxxxxxxxxxxxxxxxxxx
[mailto:owner-photoforum@xxxxxxxxxxxxxxxxxxxxxx] On Behalf Of James Schenken
Sent: Saturday, September 23, 2006 10:52 AM
To: List for Photo/Imaging Educators - Professionals - Students
Subject: Re: Silly question time

Trevor:

Checked luggage with photographic film and / or paper will most 
certainly be affected by the scanners that work on checked 
luggage.  The x-ray machines for this process have an extremely high 
power to allow looking at dense objects and they are sometimes rolled 
back a forth several times before the inspector decides.

For carry-on luggage, hand inspection is the way to go with 
film.  I've not heard of any experiences with packaged photo 
paper.  It is much less sensitive than even the lowest speed film, on 
the order of ISO 1 or 2 for example.  However, the inspectors will 
have familiarity with roll film but not with packaged paper.  I'm 
guessing that they may require you * your friend ) to open the 
package so they can see inside.  A couple of years ago, a friend here 
in town went on a photo trip with his 4x5 outfit and came back with 
many film holders containing exposed but undeveloped film.  The 
inspector made him open both sides of each one before allowing him on 
the airplane.  No amount of explanation sufficed to make the 
inspector understand what would happen to the film.

You might have your friend drop down to the airport with a sample and 
inquire about what their procedures might be in that specific case 
and ask for suggestions about handling photo papers.  But I wouldn't 
have very high hopes of getting it through.  After all how different 
would a slab or something nasty look if it were packaged in a photo 
paper box and re-sealed carefully?

James

At 03:02 AM 9/21/2006 -0700, you wrote:
>Ok, I've had many rolls of film destroyed by both checked and 
>carry-on x-ray machines.  Hand inspections are the only way to avoid 
>this.  This is plenty ok for film...but what about paper?  Is the 
>less sensitive emulsion less susceptable?  Any 
>thoughts/experience?  I can't get monochrome paper here and a friend 
>is coming to visit...just looking for advice.

James Schenken


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