Electromagnetic radiation high industry:
1, financial:
Financial industry commonly used computer networks, modern office facilities, operators are directly exposed to electromagnetic radiation.
2, radio and television:
Broadcasting, television transmission systems, radio transmission systems, editing rooms, studios are emitting a large number of electromagnetic waves to the outside.
3, IT:
Computer systems and networks emit large amounts of electromagnetic waves at any time.
4, electric power:
High-voltage transmission, substation, power generation facilities generate high-intensity electromagnetic waves.
5, telecommunications:
Mobile communication base stations and other wireless communication systems electromagnetic wave intensity is very large, especially the harm of cell phones on the human body has caused widespread concern.
6, civil aviation:
Civil aviation command tower and the aircraft itself are sent out to a large number of electromagnetic waves, this industry should pay particular attention to the protection of personnel.
7, railroads:
Electrified railroad power lines and variable distribution system to the outside of a large number of electromagnetic waves.
8, medical:
High-frequency physiotherapy, ultra-short-wave physiotherapy, microwave physiotherapy and various types of spectrum instruments, are emitting a large number of electromagnetic waves.
Introduction of radiation:
Radiation refers to a part of the electromagnetic energy from the field source out of the field source to spread to the distance, and then return to the field source of the phenomenon, the energy in the form of electromagnetic waves or particles (eg, alpha particles, beta particles, etc.) outward diffusion. All objects in nature, as long as the temperature in the absolute temperature above zero, are in the form of electromagnetic waves and particles constantly transmit heat to the outside, this way of transmitting energy is called radiation. The energy of radiation radiates in a straight line in all directions from the source of radiation. The energy released by an object through radiation is called radiant energy. Radiation is measured in roentgens per hour (R). An important characteristic of radiation is that it is "reciprocal". It radiates outward regardless of the temperature of the object (gas), and object A can radiate to object B, while B can radiate to A. It is common to use this term for ionizing radiation. Radiation itself is a neutral term, but radiation from certain substances can be harmful.