Posted on 01/21/2008 6:39:54 PM PST by LibWhacker
A set of simple silicon filters could dramatically improve the quality of X-ray images produced in hospitals and at airport checkpoints.
The technique provides a more detailed picture of fractured bone and could help airport security scanners distinguish plastic explosives from harmless substances.
X-ray images normally reveal the way different materials, including body tissue, absorb X-ray radiation. Strongly absorbing areas are white and weakly absorbing ones black. But finer details are often lost in a fog caused by areas with intermediate radiation-absorbing ability.
(Excerpt) Read more at technology.newscientist.com ...
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