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now that I read couple of articles on the subject..
The way that russion found evidence of x-tays from peeling off the sticky take from glass was he probably found traces of x-ray exposure on glass photo plates (still used widely 50 years ago) after peeling off selotape from the back of the plate.. which means the x-rays are emitted in the presence of air as well.. only much less efficient.
OHS issue.. :-)
Last edited by bojan; 24-10-2008 at 10:41 AM.
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