At 3:22 AM +0100 3/11/04, Listar wrote:
>From: "Roberto Ciocca" <ciock@xxxxxx>
>Subject: [OM] Film and xray
>Date: Wed, 10 Mar 2004 22:45:08 +0100
>
>
>Avoiding films to pass through airport xray machine is only precautions
>or effectively those xray may damage exposed or unexposed film?
>On these machine is clearly written DO NOT DAMAGE FILMS.
>Is there online any referred documents to consult? Thanks, Roberto.
The following answer, posted some years ago, may help:
>Date: Tue, 16 Apr 2002 22:47:45 -0500
>To: olympus@xxxxxxxxxxxxxxx
>From: Joe Gwinn <joegwinn@xxxxxxxxx>
>Subject: Film and travel, some years back
>
>I always insisted upon manual inspection of film at airports, because when I
>challenged the people running the carry-on baggage scanner to tell me what the
>radiation dose was, they always danced, or made irrelevant threatening noises.
> Sure it's low dose... And, I have a bridge for sale, cheap...
>
>Until I challenged a guard operating a carry-on baggage scanner at Schipol in
>Amsterdam. He looked at me strangely, surprised I think, said wait a minute,
>ran into the office, and emerged with the manual for the scanner.
>
>The manual said 0.01 rads, which isn't much, about one tenth of a chest X-ray
>(or a flight from Boston to LA). So I relented, and let him X-ray the whole
>lot, and no harm came of it.
>
>Nor has any harm come of multiple passes through such scanners since then.
>
>I used only ASA 100 film back then. I use ASA 400 a lot now (in a
>point-and-shoot carried for business travel), and I haven't seen any damage
>either. (The point-and shoot was an Olympus XA, but I now also use a Yashica
>T4.)
>
>That said, this experience applies only to airports in the West, where good
>equipment is the norm.
Winsor's point about the new scanners in the back room is well taken -- these
are high dose, totally unrelated the the scanners for carry-on luggage.
Joe Gwinn
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