I actually looked into this as a possible career change after my divorce. The pay is very good considering the low cost and relatively short duration of most radiologic programs. Ultimately I decided that the program was too rigorous for a single mom, so make sure your daughter is willing and able to devote much of her waking hours to classes, studying, and working for little or no pay for the duration of the program. If I could go back in time and do things differently I would have gone to trade school to be a sonographer, I could have easily doubled my annual salary from what I am currently making and cut my student loans to about 1/4 of the amount I ended up with! The program I looked at was at a local community college with full accreditation and options for financial aid.
Be careful about financial aid--it's actually pretty complicated! Does your daughter have a college degree already? If she has acheived a bachelor's degree she is inelligible for further grants. That was the other obstacle for me. No way I was taking on thousands more in loans when I'm not finished paying for the first batch of college loans.
Look at the programs in your area very carefully, narrow your options down to 2-3 schools, then make appointments with academic advisors/counselors at the schools. Then while you are on campus you can swing by financial aid and get an idea of what your options are. That's what I did and everyone was very helpful. Do it soon though because the programs are very competitive and can fill up fast, at least in my area, and fall 2019 programs are probably enrolling right now.