At 08:31 AM 8/14/97 -0400, you wrote: >>I would *not* advise to do such experiments in rural areas. > >Why not in rural areas? Nobody around to see you glow... > >Has anybody tried nuclear sources, though? I mean, this part of the >country is known for uranium and radium deposits, so ... > Probably can't get the flux levels you would need. Maybe you could dig some up, mail (UPS is on strike) it to Savanna River SC and let them enrich it for you :-) Seriously though, the levels needed would require shielding and control of the dose of radiation that you got. An iteresting study would be to see what different sources of radiation could cause the best erase. I would guess that a source that gave off gamma's at about the same energy level as the UV light would work fine. Wonder what kind of shielding the package adds? Probably the best method would to be to etch a hole in the package and use a light. Norm