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Risk to VHS tapes in carry-on vs checked airline baggage?

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jas...@pacbell.net

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Jun 9, 2003, 4:28:33 PM6/9/03
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My wife is travelling to Europe next week, taking several VHS tapes (some
commercial, some I made).
Are the tapes more likely to be de-magnetized going through the checked
luggage or carry-on X-ray machine?
(She will be going through two machines--once in USA, once at Heathrow).

TIA,
J.Asling
--
There are only 10 types of people in the world--
those who understand binary, and those who don't.

Larry Jandro

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Jun 9, 2003, 5:16:38 PM6/9/03
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On 09 Jun 2003, jas...@pacbell.net tapped on a keyboard and the
electrons formed this:

> My wife is travelling to Europe next week, taking several VHS
> tapes (some commercial, some I made).
> Are the tapes more likely to be de-magnetized going through the
> checked luggage or carry-on X-ray machine?

No.

--
Larry Jandro - Remove spamtrap in ALLCAPS to e-mail

Are you a Sound/Video/Lighting/Staging Freelancer..?
If so, think about joining our mail list.
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WEBPA

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Jun 9, 2003, 5:38:51 PM6/9/03
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Magnetic tape (HDDs, floppy disks, solid-state memory cards, computers, etc.,
etc.) is not affected by ionizing radiation, including X-rays unless the dose
is high enough to melt the plastic parts.. Photographic film is affected by
ionizing radiation...that's why it works. You can expect that any photographic
film placed in checked luggage or in carry-on that goes down the conveyor will
be damaged to some degree.

webpa

Rooker

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Jun 9, 2003, 5:44:43 PM6/9/03
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>My wife is travelling to Europe next week, taking several VHS tapes (some
>commercial, some I made).
>Are the tapes more likely to be de-magnetized going through the checked
>luggage or carry-on X-ray machine?
>(She will be going through two machines--once in USA, once at Heathrow).
>
>TIA,
>J.Asling

I'd buy some x-ray pouches for them. Most media holds up pretty well
but tapes and floppies are notoriously sensitive.


Rooker
"If it weren't for physics, and the cops, I'd be unstoppable!"

Bill Farnsworth

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Jun 9, 2003, 5:47:46 PM6/9/03
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> On 09 Jun 2003, jas...@pacbell.net wrote:
> > My wife is travelling to Europe next week, taking several VHS
> > tapes (some commercial, some I made).
> > Are the tapes more likely to be de-magnetized going through the
> > checked luggage or carry-on X-ray machine?

> "Larry" wrote back:


> No.
>
> --
> Larry Jandro -

Ditto......
No.
Now.... Carry on.

Bill F.
www.billfarnsworthvideo.com

Andys cam

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Jun 9, 2003, 7:48:25 PM6/9/03
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>I'd buy some x-ray pouches for them. Most media holds up pretty well
>but tapes and floppies are notoriously sensitive.

Just what are tapes "notoriously sensitive" to?????

Chris Fewer

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Jun 9, 2003, 8:22:40 PM6/9/03
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"Andys cam" <andy...@aol.com> wrote in message
news:20030609194825...@mb-m29.aol.com...

> >I'd buy some x-ray pouches for them. Most media holds up pretty well
> >but tapes and floppies are notoriously sensitive.
>
> Just what are tapes "notoriously sensitive" to?????

Stupidity of their owners ;)

To the original poster, it's very simple. Until Stephen Hawking makes his
unified field theory, there is no connection between X-Rays and magnitism.

Film (Photographic/cinematic) is sensitive to X-Rays because that's what
it's built to be sensitive to. Light. X-Rays are just very high frequency
light. It's the same effect as opening your camera while the film is still
loaded and un-wound. You expose the film (Oh, and I've been told that under
400 speed film is also not affected by X-Rays. I'm still nervous enough to
ask for a hand inspection, but I've had friends pass their vacation snaps
through with no ill effects.

Magnetic Media (Tape, Floppy Disks), record magnetic data. They do not
record light. As a result, they are not affected by X-rays, unless it was
powerful enough to melt them. The only danger to magnetic media would be the
metal detector, hower, don't worry, while you are passing through a magnetic
field, even if you are carrying your tapes in your hand, they won't be
demagntized, or affected in any visible way, but if you're nervous, just
make sure they go through the x-ray machine rather then the metal detector.

Optical media (CDs) are not affected by magentisim, and are only affected by
light if it's powerful enough to burn, meaning for all intents and purposes,
they aren't affected by light.


Tim Adams

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Jun 9, 2003, 10:59:10 PM6/9/03
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Just curious if anyone thought about the possibility that the tapes
won't work in Europe, unless they are in PAL format? I bought a VHS
when I was over there in '99, and brought it back to find it didn't
work (I had just graduated high school, and had forgotten about the
different formats).
Anyway, just thought I'd toss that out there.
Tim

Dave Perks

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Jun 10, 2003, 12:20:40 PM6/10/03
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WEBPA wrote:
>
> Magnetic tape (HDDs, floppy disks, solid-state memory cards, computers, etc.,
> etc.) is not affected by ionizing radiation, including X-rays unless the dose
> is high enough to melt the plastic parts.

I have heard rumors of problems from the magnetic fields emitted by
X-ray machines' power supplies. I don't know if they are true.

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