Re: IR Film and Airport X-Rays

[stephen Frazier <sfrazier@xxxxxxxxxx>]

Barry, Ken wrote:

> Jeff:
>
> I have also not had problems traveling with IR film.  When traveling
> with 4x5 it is very hard to get a visual exam. (a hundred sheet box is
>
> too big for them not to open or x-ray).
>
> I suspect that IR film is less sensitive to x-rays than regular film.
> It is more sensitive to heat (IR range) not x-rays at low doses.
> X-rays
> are at the opposite side of the electromagnetic spectrum from IR.
> (remember your high school physics?)
>
> X-rays - Visible Light - Infrared
>
> Hope this helps.
>
> Ken Barry (kbarry@xxxxxxxxxxxxxxx)
>
> >----------
> >From:  Pedro Cote[SMTP:pcote@xxxxxxxx]
> >Sent:  Tuesday, September 30, 1997 9:52 AM
> >To:    infrared@xxxxx
> >Subject:       Re: IR Film and Airport X-Rays
> >
> >Jeff Spirer wrote:
> >
> >> Is there any reason to believe that scanners at the airport will
> have
> >> any
> >> more effect on IR film than regular film.  I don't want to try a
> hand
> >> check, since I am sure that some guard somewhere will insist on
> >> opening the
> >> canisters.  However, I expect to be in country (ies) that a) may
> have
> >> the
> >> machines turned up, and b) are highly unlikely to have processing
> >> facilities.  They will have to go through unprocessed and processed
> at
> >>
> >> least two times (i.e., at least four times total.)
> >>
> >> Jeff Spirer
> >
> >Jeff:  I've never had a problem with HIE.  I always try to be careful
>
> >and request a visual inspection, but several years of crossing
> airport
> >X-rays  have not produced any fog in the film.
> >
> >Good luck, -Pedro
> >
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