X-Message-Number: 3272 From: Brian Wowk <> Date: Sat, 15 Oct 94 16:39:54 CDT Subject: SCI.CRYONICS Errata >From my previous message on brain scanning: > To > acquire an image with that resolution (0.1 microns) would require the > absorption of at least 10^18 100keV x-ray photons, with a total energy > of 10^23 eV or about 10,000 Joules. For a 1kg brain, this is > 10,000 rads of radiation-- a fatal dose! Actually 10,000 Joules per kg is 10,000 Gray (not rads) which equals 1,000,000 rads! A fatal dose indeed. --- Brian Wowk Rate This Message: http://www.cryonet.org/cgi-bin/rate.cgi?msg=3272