Mammography is the choice of screening test for breast cancer in an average risk woman above age 40. Its rightly advocated by American College of Radiology, American College of Obstetrics & Gynecology, American Cancer Society, American Medical Association, National Cancer Institute and several other worldwide medical organizations.
Many times women including my patients express the concern for radiation exposure. On an average, the amount of radiation exposure during a mammographic exam is 0.5 mSv. To put things in perspective, a flight from New York to Athens, Greece exposes an individual to same amount of radiation.
To answer the question, yes, there is exposure to radiation but in a very low dose.