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Physics of mag tapes
Paul Pangaro writes:
> I have been taking cart tapes for SMBX in and out of airport
> security for years now, and sometimes with the same tape a dozen
> times. Coming back from Boston recently I was met with shock from
> the security-person that I was doing this, because "everybody
> else passes them through by hand" and not through the x-ray
I am not sure that X-ray will damage your magnetic tapes... I had
rather to put them in the x-ray machine than carrying them with me
thru the metallic "door frame" detector.
Of course, it is the opposite for photographic films...
> Anyone really know what those things do, and whether it can, over
> repeated exposures, affect the oxide/fields on the tape? I
> realize "it is probably better to be safe than sorry" but I was
> curious about the known realities here.
If you look on the written notice coming with the tapes or the
floppydisks, they mention magnetic field as a potential hazard, but