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Website
Lawrence Berkeley National Laboratory

Berkeley Lab: Micro Worlds Project: Advanced Light Source

For Students 9th - 10th
A discussion of the Advanced Light Source (ALS) facility and its use in material analysis and medicine.
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Unit Plan
University of Colorado

University of Colorado: Physics 2000: X Rays

For Students 6th - 8th
Here's a really simple demonstration of a fluoroscope. There are links to more information about the uses of X-rays as well.