Tuesday, April 28, 2009

If gamma rays are poor at ionising, why are they used for cancer treatment

If gamma rays are poor at ionising, why are they used for cancer treatment?
I'm a little confused. Surely you would need something which ionises well in order to kill the cancer cells?
Cancer - 1 Answers
 

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1 :
They are toxic but they are to be applied to the CANCER cells and not the healthy cells. They would destroy healthy cells as well, but the rays are applied using X-rays and MRI scans to target as close to the Cancer Cells as possible, enabling your healthy cells to redominate the cancerous areas and possibly eliminate whatever is left of the cancer. It is to treat the parts of the body infested with cancer and fewest healthy cells. I guess it's like why we use powerful bombs to make America safer.




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