Working on a research paper; I'm writing about the topic of radiation!

I'm at a loss for a good inquiry question that will focus my investigation on the topic of radiation.

Myth: There is no such thing as a safe dose of radiation or rather all radiation has a negative effect on the body

This is what I have so far, and I'm looking to form a thesis and thus formulate a proposal.

Well, where did you come up with that idea you have? You should come up with an idea ONLY after jotting a few paragraphs about the main ideas of some recent articles about radiation.

Collect 5 articles that are about the topic that interests you most (i.e. negative effects on the body), and list the main ideas of those articles. ONLY after considering their ideas should you propose your own idea.

You will propose an idea that is BASED ON the main ideas of the articles you read.

:-)