doctors often compare background radiation with

来源: foodconsumer 于 2009-04-06 21:35:02 [] [博客] [旧帖] [给我悄悄话] 阅读数 : (235 bytes)
回答: an overview on CT scan radiation dose 由 haoa 于 2009-04-06 18:08:38

medical x-ray. It's not a proper comparison. Medical x-ray is far more dangerous than background radiation because medical x-ray is focused on a specific area and the dose rate is much much much higher than background radiation.

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