The scope of radiation protection and three principles

The definition and application of radiation protection

The protection of radiation mainly refers to people who work and live in relatively close distances from strong radiation sources. Electromagnetic radiation protective clothing should be considered in order to reduce the radiation dose received, which mainly includes the following groups:

1. Computing and operating personnel for large, medium, and small computers 2. Computer software design, programming, and entry personnel 3. Professional computer users include: finance, accounting, savings, securities salespersons, commercial cashiers, and computer graphic designers. Such as advertising design, architecture, machinery, artwork, animation design, and secretarial (typing and copying)
4. Radio and television, communication, navigation, radar and other transmitters near-field workers 5, metallurgy, electronics, chemicals, paper, wood, food and food processing industries use high-frequency and microwave equipment for smelting, welding, heating, exhaust , Sputtering, Drying, Insecticide, Disinfection, etc. 6. Personnel who have long-term use of medical equipment such as radio frequency and microwaves. 7. Salesperson who specializes in microwave heating of fast foods. 8. Debuggers in the production of electronic equipment. 9. Power generation. And high-voltage transmission substation staff 10, military electronic station equipment experimental area staff 11, often long-term Internet users 12, anti-static, explosion-proof workplace staff 13, intentional kidney function mobile phone users 14 in radio, television, People with low immunity living near communication stations

The three principles of radiation protection

The three principles of radiation protection include: radiation practice justification, radiation protection optimization, personal dose equivalent limits (dose control).

1. The justification of radiation practice means that before any practice accompanied by radiation exposure is carried out, it must be fully demonstrated and weighed against the pros and cons. Only when the total social benefits brought about by this item is greater than the price paid for it, can it be considered that the practice is justified.
2. As Low As Reasonably Achievable (ALARA, reasonably possible to be as low as possible) plays an important role in actual radiation protection. In the implementation of a radiation practice, there may be several options to choose from. When selecting several options, the optimization procedure should be applied. That is, after considering the economic and social factors, all radiation should be taken. The irradiation is maintained at the lowest possible level that can be reasonably achieved.
3. Dose limits are the "unacceptable" and "tolerable" regional boundaries. It is also an upper bound on the optimization of radiation protection. The reason for this restriction is that the distribution of benefits and costs in the group is inhomogeneous. Although the radiation practice meets the requirements of justification and the protection is optimized, it does not necessarily provide sufficient protection for each individual. For a radiation practice given to the top, regardless of the cost and benefit analysis results, this limit must be used to limit the exposure of individuals.

Copyright Statement: This article is a reprint of online media, and it only represents the author's point of view. It has nothing to do with this site. If news articles and comments infringe your legal rights, please call us and we will handle it in a timely manner.