I'm working on an original novel about kids with superpowers and I'm trying to establish parameters for the abilities of one character. I've conceived her as able to perceive the entire EM-band and I'm trying to get a grip on the advantages and disadvantages involved. I think that I can surmise that if she can't learn to filter, out-of-control X-ray vision alone would render her effectively blind. (Try reading a book, when you not only see the words on the page, but the words on the back of the page and on all the pages below. Depth perception is likely to be shot.)
However, since my first and last physics course was over 25 years ago (and I barely passed that!), I'm having some real difficulties understanding what it would mean to be able to see gamma radiation, radio waves, etc. X-ray vision is relatively easy: she's no doctor, but she can see if a bone is broken, or pinpoint the location of a cyst or tumor—though she wouldn't necessarily know what she was seeing. More like, "Alex... you have something on your hip-bone that kind of looks like a bump. I don't see it on anyone else. Maybe it's a problem."
Edit: Thanks everyone for your help! I can see this is going to be a lot trickier than I thought. Going to check out some of the sources, though and see how to rework this.