- Industry: Government
- Number of terms: 33950
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United States Department of Health and Human Services, Radiation Emergency Medical Management
A radioactive isotope of the element hydrogen (chemical symbol h). See also deuterium.
Industry:Medical devices
A radioactive chemical element and a product of radium (ra) decay. Polonium is found in uranium (u) ores.
Industry:Medical devices
A nucleus that contains an uneven number of protons and neutrons and seeks to reach equilibrium between them through radioactive decay (i.e., the nucleus of a radioactive atom). See also stable nucleus.
Industry:Medical devices
Pt-gvhd occurs when donor lymphocytes in transfused blood attack recipient organs and tissues recognising recipient hla and are not eliminated by host immunological defense.
Industry:Medical devices
A naturally occurring radioactive element whose principal isotopes are uranium-238 (u-238) and uranium-235 (u-235). Natural uranium is a hard, silvery-white, shiny metallic ore that contains a minute amount of uranium-234 (u-234).
Industry:Medical devices
Radiation exposure to an embryo or foetus while it is still in its mother’s womb. At certain stages of the pregnancy, the foetus is particularly sensitive to radiation and the health consequences could be severe above 5 rads, especially to brain function. For more information, see cdc’s fact sheet, “possible health effects of radiation exposure on unborn babies,” at http://emergency.cdc.gov/radiation/prenatal.asp.
Industry:Medical devices
Naturally radioactive residue from the processing of uranium ore. Although the milling process recovers about 95% of the uranium, the residues, or tailings, contain several isotopes of naturally occurring radioactive material, including uranium (u), thorium (th), radium (ra), polonium (po), and radon (rn).
Industry:Medical devices
A guide that tells state and local authorities at what projected dose they should take action to protect people from exposure to unplanned releases of radioactive material into the environment.
Industry:Medical devices
A multiplier that is used for converting the equivalent dose to a specific organ or tissue into what is called the "effective dose." the goal of this process was to develop a method for expressing the dose to a portion of the body in terms of an equivalent dose to the whole body that would carry with it an equivalent risk in terms of the associated fatal cancer probability. It applies only to the stochastic effects of radiation.
Industry:Medical devices
A small atomic particle, typically found within an atom's nucleus, that possesses a positive electrical charge. Even though protons and neutrons are about 2,000 times heavier than electrons, they are tiny. The number of protons is unique for each chemical element. See also nucleon.
Industry:Medical devices
