To the best of my knowledge this can not be accomplished without sophisticated equipment. The Department of Energy's web page briefly explains what is involved.
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This FAQ is Copyright (C) 1994,1995 by Alex Lopez-Ortiz.
This FAQ is Copyright Ã‚Â© 1998,2001 by Daniel Owen. This text, in whole or in part, may not be sold in any medium, including, but not limited to, electronic, CD-ROM, or published in print, without the explicit, written permission of Daniel Owen.