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The author wishes to thank Jennifer Keenahan for many of the diagrams on this website

The author wishes to acknowledge the authors of the following websites for the opportunity to reproduce some of their diagrams on this website

Geiger 1
Radioactivity sites with images

Nuclear med 1
230 x 250 pixels - 38k

smoke alarm 1
150 x 150 pixels - 8k

smoke alarm 2
300 x 234 pixels - 13k

thickness control prad25.htm

radiation logo 1

radon 1

radiation warning 1

fission 1

magnetic deflection of rays 1

penetration 1