Positron Emission Tomography. A slightly radioactive material is injected which migrates to the intended target. Thin image slices are taken from emitted positrons (the antimatter equivalent of electrons which are negative) and the slices are computer assembled into a 3D image of the area of interest. Very cool. Not problematic in terms of radiation dose, and a powerful tool for diagnostic purposes. Jim
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Today's Featured Article - Gatherin of the Orange - by Rick Nikolich. In July of 1998 I was talking to fellow Allis Chalmers collector Mike Schilling about the annual "Gathering of The Orange" AC show coming up in August of 1999. He got this wild idea that we should get a convoy of AC tractors and drive them from Charlotte, Michigan 105 miles to LaGrange, Indiana.
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