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• They use gamma rays with trying to find cancer
• Gamma rays are a really high frequency there for they can go through tissues easier
• Doctors use the gamma rays to kill cancer cells as well
• One bad things is they will kill other cells.

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• This is a picture of a brain took of the brain.
• They can use this for concussions as well if the brain moved severely.

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• They use gamma rays to look in to things like bridges to see if the inside is cracking or deteriorating.

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• Americancancersocity.
• Wikipedia
• http://www.bbc.co.uk/schools/gcsebitesize/science/add_ocr_gateway/radiation...
• NASA