[Radiation], an invisible and intangible thing that is closely related to our life, often causes panic among many people. For example, after the Fukushima nuclear power plant accident last year, people worried about the impact of radiation on their health and even triggered a wave of [salt robbery]. At that time, various kinds of ridicule on the Internet continued. When we go to the hospital to see a doctor, we will also encounter [radiation] related examinations and treatment methods. For example, we usually need to take X-rays or chest fluoroscopy for physical examination. Outside the examination room, we can see eye-catching radiation warning signs. Doctors do not stay in the examination room much, but all have to sit in the Read More …