Radiation: Ionizing radiation - World Health Organization (WHO)
2020年10月26日 · Energy emitted from a source is generally referred to as radiation. Examples include heat or light from the sun, microwaves from an oven, X rays from an X-ray tube and gamma rays from radioactive elements. Ionizing radiation can remove electrons from the atoms, i.e. it can ionize atoms.
Ionizing radiation and health effects - World Health Organization …
2023年7月27日 · As the use of ionizing radiation increases, so does the potential for health hazards if not properly used or contained. Acute health effects such as skin burns or acute radiation syndrome can occur when doses of radiation exceed very high levels. Low doses of ionizing radiation can increase the risk of longer term effects such as cancer.
Radiation - World Health Organization (WHO)
2024年7月10日 · There are two types of radiation: ionizing and non-ionizing radiation. Ionizing radiation Ionizing radiation is a type of energy released by atoms that travels in the form of electromagnetic waves (gamma or X-rays) or particles (neutrons, beta or alpha).
电离辐射与健康影响 - World Health Organization (WHO)
2023年7月27日 · 重要事实. 电离辐射是原子释放出的一种能量，以电磁波或粒子的形式传播。 人们随时都会接触到天然电离辐射源，譬如，土壤、水和植被中的电离辐射源，以及医疗器械中的x射线等人工电离辐射源。
Radiation and health - World Health Organization (WHO)
2023年7月7日 · Radiation is the emission of energy as electromagnetic waves or moving subatomic particles. Natural radiation comes from many naturally occurring radioactive materials found in soil, water, air and in the body. Every day, people inhale and ingest forms of radiation from air, food and water.
Radiation: 5G mobile networks and health - World Health …
2020年2月27日 · The International Commission on Non-Ionizing Radiation Protection and, The Institute of Electrical and Electronics Engineers, through the International Committee on Electromagnetic Safety; These guidelines are not technology-specific. They cover radiofrequencies up to 300 GHz, including the frequencies under discussion for 5G.
Radiation and health - World Health Organization (WHO)
2002年6月16日 · Non-ionizing radiation is the term given to radiation in the part of the electromagnetic spectrum where there is insufficient energy to cause ionization. It includes electric and magnetic fields, radio waves, microwaves, infrared, ultraviolet, and visible radiation.
Radiation: Electromagnetic fields - World Health Organization …
The Federal Office for Radiation Safety in Germany recently measured the daily exposure to magnetic fields of about 2000 individuals across a range of occupations and public exposures. All of them were equipped with personal dosimeters for 24 hours. The measured exposure varied widely but gave an average daily exposure of 0.10 µT.
Radiation Protection and Safety in Medical Uses of Ionizing …
2018年12月12日 · Overview . This Safety Guide provides recommendations and guidance on fulfilling the requirements of GSR Part 3 with respect to medical uses of ionizing radiation, addressing all three categories of exposure: medical exposure, primarily of patients undergoing the radiological procedures but also of carers and comforters and of volunteers subject to exposure as part of a programme of medical ...
TMT handbook : Triage, monitoring and treatment of people …
2009年12月12日 · TMT handbook : Triage, monitoring and treatment of people exposed to ionizing radiation following a malevolent act