- Industry: Government
- Number of terms: 33950
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United States Department of Health and Human Services, Radiation Emergency Medical Management
The dose to a specific organ or tissue that is received from an intake of radioactive material by an individual over a specified time after the intake. For radiation protection purposes, the specified time is to the age of 70, which is normally taken to be 50 years for a radiation worker and 70 years for a member of the public.
Industry:Medical devices
The committed dose equivalent for a given organ multiplied by a weighting factor (see the definition of weighting factor). (radiation terms, health physics society)
Industry:Medical devices
The ratio of the amount of a specific substance in a given volume or mass of solution to the mass or volume of solvent.
Industry:Medical devices
An organisation whose members represent state radiation protection programs. For more information, see the crcpd web site at http://www.crcpd.org.
Industry:Medical devices
The deposition of unwanted radioactive material on the surfaces of structures, areas, objects, or people where it may be external or internal. (animations of contamination) see also decontamination, incorporation.
Contamination means that radioactive materials in the form of gases, liquids, or solids are released into the environment and contaminate people externally, internally, or both. An external surface of the body, such as the skin, can become contaminated, and if radioactive materials get inside the body through the lungs, gut, or wounds, the contaminant can become deposited internally.
Industry:Medical devices
An area where entry, activities, and exit are controlled to help ensure radiation protection and prevent the spread of contamination.
Industry:Medical devices
Radiation produced in outer space when heavy particles (nuclei of all known natural elements) bombard the earth. See also background radiation, terrestrial radiation.
Industry:Medical devices
The international system (si) unit of electric charge. A coulomb is the quantity of charge passing a cross section of conductor in one second when the current is one ampere.
Industry:Medical devices
A fission process where the neutron production rate equals the neutron loss rate to absorption or leakage. A nuclear reactor is "critical" when it is operating.
Industry:Medical devices
The minimum amount of fissile material that can achieve a self-sustaining nuclear chain reaction.
Industry:Medical devices
