How often does a doctor of digital photography do it?

Doing as little as possible is harmful to your health.

Digital photography DR examination is harmful to health. DR is an improved product of X-ray, which mainly comes from its radiation. A DR is equivalent to the amount of radiation received by the sun after one week of exposure. Therefore, it is recommended to take less DR and a chest X-ray. When the radiation is irradiated in the inspection area, the irradiation rate is about 160 millisieverts (the unit for measuring radiation) hour, which is about 0.045 millisieverts second. Take chest rib fracture as an example, it takes about 0.5 seconds to take a chest X-ray, so the patient has to bear about 0.023 millisieverts of radiation. According to six X-ray examinations, a patient with rib fracture has to bear a radiation dose of 0. 138 millisieverts. According to the standards formulated by the International Commission on Radiological Protection, the total radiation risk is 0.0 165 sieverts, that is to say, every time a human body receives a radiation dose of one sievert (1 sievert = 1000 millisieverts), the carcinogenic probability will increase by 0.0 165. Based on this calculation, the risk of a patient with rib fracture will increase by about 3.8/10 million.