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The information on Groklaw is not intended to constitute legal advice. While Mark is a lawyer and he has asked other lawyers and law students to contribute articles, all of these articles are offered to help educate, not to provide specific legal advice. They are not your lawyers.

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Change of Tune - Xraying and Cancer. | 428 comments | Create New Account

Comments belong to whoever posts them. Please notify us of inappropriate comments.

Change of Tune - Xraying and Cancer.

Authored by: tiger99 on Tuesday, June 18 2013 @ 08:09 AM EDT

That depends entirely on the performance of the machine. More detail needs more Xray photons which means higher dose. Ideally the photon detector and imager will be highly efficient, but you still need maybe 100 photons per pixel to get 10% noise. I will not bother with a long explanation right now, others may care to elaborate, but in general Xray doses have fallen since hospitals stopped using inefficient photographic film and switched to electronic imaging. If your hospital is still using film, ask them why. I haven't seen it used in a UK NHS hospital for 5 years or more.

I assume that a security check needs less detail than a medical Xray, so the dose needed "should" be a lot less.

The strange thing about medical Xrays is that, despite having the data on computer, they still often print a copy to film so they can look at it on a light box. Old habits die hard....

[ Reply to This | Parent | # ]

Change of Tune - Xraying and Cancer. - Authored by: Anonymous on Tuesday, June 18 2013 @ 08:31 AM EDT
- Change of Tune - Xraying and Cancer. - Authored by: tiger99 on Tuesday, June 18 2013 @ 01:03 PM EDT
Print to film - Authored by: Anonymous on Tuesday, June 18 2013 @ 11:27 AM EDT
- Print to film - STUPID - Authored by: Anonymous on Tuesday, June 18 2013 @ 12:55 PM EDT

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