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- From: amconn01@ulkyvx.louisville.edu
- Subject: Re: Airport X-Rays
- Message-ID: <1992Jul25.085337.1@ulkyvx.louisville.edu>
- Lines: 24
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- Organization: University of Louisville
- References: <13ra2gINN10i@grapevine.EBay.Sun.COM> <RON.92Jul24154950@bert.cs.byu.edu>
- Date: Sat, 25 Jul 1992 12:53:37 GMT
-
- In article <RON.92Jul24154950@bert.cs.byu.edu>, ron@bert.cs.byu.edu (Ron Snyder) writes:
- >
- > Someone who travels often should do us all a favor and experiment. Pack
- > 360K, 1.2M and 1.4M disks with data (one big ZIP file, perhaps) and put
- > them in the luggage that will be X-rayed. Trying to unZIP the file will
- > reveal if any of the data has been corrupted. If several people do this
- > in several airports (a variety of X-Ray equipment) and post the results,
- > we'll all know for sure.
- >
-
- Three years ago I subjected various types of floppies (5.25, 5.25 HD, 3.5, 3.5
- HD) to as much as 1.5 Gy of x rays. File and media verification showed no
- errors and the disks appeared fine. I didn't think anything would happen but I
- did this to satisfy colleagues who had their doubts. As previous posters have
- stated, it is the magnetic fields associated with the HV transfromers used in
- radiographic units which have the most potential for causing damage to magnetic
- media. An x-ray flux would have to be quite high (no, I haven't done the
- calculations) to cause damage to a disk, although, since we are talking about
- probabalities, there is always that finite, albeit small chance; but then,
- there is a infinitesimally small chance of damge from natural background
- radiation. And maybe I'll win the lottery :-) Twice!
-
- Michael Connor/Castigat ridendo mores!
-
-