Radiologist is a medical doctor specialised in intepreting medical scans (x-ray/mri/cat etc.). Radiographer is someone who takes the actual medical scans and X-ray technician is works under the radiographer in terms of hierachy.
2-4 years
A radiologist must understand basic algebra and basic science and also be good with people.
Pharmacy Technician Ultrasound Technician Radiologist Sleep Technician Respiratory Therapist
There are several online schools that offer radiology technician courses. However to get a job as a radiologist, you still need to have hands on training to become certified.
According to the American Society of Radiology Technicians, the average salary for a radiology technician is $58065.
X-ray technician, or radiologist.
Take X-rays for the radiologist to read
A radiology technician certificate means that you can practice the jobs of being a radiologist or technician in the presence of your state. It's really helpful if you want that type of job.
I was unable to find any books on how to become a radiologist. You can find websites like http://blogs.payscale.com/salarystories/2007/02/radiologist.html or http://www.thebestdegrees.org/how-to-become-a-radiologist/. Radiology requres medical school.
In some cases a radiologist will watch the ultrasound being accomplished, but in most cases the technician actually does the ultrasound. The radiologist simply reads the completed ultrasound and views the pictures (images) and video if available.
how many years in college does it take to become a diagnostic radiologist noninvasive?
No, a veterinary radiologist is a veterinarian who has gone through even MORE specialized training after they have graduated from vet school (typically a minimum of 4 years additional training). As someone else mentioned, frequently it is the veterinary technician who actually positions the animal and takes the radiograph. Thus to take radiographs, you could go to technician school. But to interpret the radiographs, you must be a veterinarian.