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7 Ιουλ 2023 · Every day, people inhale and ingest forms of radiation from air, food and water. Today, the most common artificial sources of human exposure to radiation are X-ray machines and radiopharmaceuticals used for diagnostic or radiotherapy and other medical devices.
- Ionizing Radiation, Health Effects and Protective Measures
Exposure to radiation also comes from human-made sources...
- Ionizing Radiation, Health Effects and Protective Measures
22 Φεβ 2024 · All of us are exposed to radiation every day, from natural sources such as minerals in the ground, and man-made sources such as medical x-rays. According to the National Council on Radiation Protection and Measurements (NCRP), the average annual radiation dose per person in the U.S. is 6.2 millisieverts (620 millirem) millirem) .
27 Ιουλ 2023 · Exposure to radiation also comes from human-made sources ranging from nuclear power generation to medical uses of radiation for diagnosis or treatment. Today, the most common human-made sources of ionizing radiation are medical devices, including x-ray machines and Computed Tomography (CT) scanners.
By far the largest source of natural radiation exposure comes from varying amounts of uranium and thorium in the soil around the world. The radiation exposure due to cosmic rays is very dependent on altitude, and slightly on latitude: people who travel by air, thereby, increase their exposure to radiation.
People are exposed to radiation from cosmic rays, as well as to radioactive materials found in the soil, water, food, air and also inside the body. Human-made radiation sources are widely used in medicine, industry, and research. There are two types of radiation: ionizing and non-ionizing radiation.
People can be exposed to x-rays and gamma rays from 3 main sources: Natural background radiation from cosmic rays from outer space and from radioactive elements normally in rocks and soil. This is the major contributor to worldwide radiation exposure.
16 Μαΐ 2002 · This article reviews possible sources of major exposure to radiation, summarizes the physical and biologic principles of radiation exposure, and describes the main syndromes. The...
