So, I'm coming up to the last year of undergrad physics at Oxford Uni, and am starting to think about PhDs. I'm really interested in medical physics, particularly MRI, so I figured this would be a great thing to apply for PhDs in. Problem is, MRI tends not to fall within the department of physics, but rather in the department of clinical neurology or something like that (it varies between universities, but at Oxford it's in clinical neurology I think). And ultimately, I'd like to be able to get a job researching/lecturing physics at a good university. So I'm kind of wondering if it's cutting off options to do a PhD in a different department? Any advice?