Ionizing electromagnetic waves, usually harmful to most biological beings.

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Is a single x-ray photon capable of doing enough damage to the dna of a cell to kill that cell?

Ionizing radiation is damaging to DNA, but is there such a thing as a safe dose below which no DNA damage could occur? I'm not asking about a minimum safe dose overall, just whether or not there's an ...
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What are the effects of excessive UV exposure on the human immune system?

In my readings, several authors have suggested that excessive/prolonged exposure to UV (particularly UVA) can have harmful long term effects on the human immune system. This leads to my question, ...
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What material is recommended for autoradiography cassettes when working with 32P?

So, during radiation safety training, much hullabaloo is made regarding how the high energy beta emitted by 32P produces Bremsstrahlung radiation when striking a high Z shielding material. As such, ...