It is possible to get cancer as a radiologists because of the machines they are working with and around.
However the equipment that radiologists use now are much safer and more improved for safety than the radiologist machines that were around before 1940.
Radiologists in the 1940's had a higher risk of developing cancer than the radiologists of today.
But being a radiologists can increase your chance of developing cancer but not all radiologists get cancer from the job.
Radiation can lead to cancer so if you get into being a radiologists you just have to be prepared for the possibility of cancer but it's rare that a radiologists gets cancer.
There are many radiologists out there that have retired and have not developed cancer.
There's also radiation all around us such as from microwave ovens, power lines, electric meters, cell phones etc.