- Отрасли: Education
- Number of terms: 3412
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Harvard University is the oldest institution of higher learning in the United States. It was established in 1636 by the Massachusetts legislature and named after its first benefactor, John Harvard. Located in Cambridge, Massachusetts, Harvard University is an Ivy League university.
A commonly used measure of radioactivity from particle emitters; since a detection instrument cannot operate at 100% efficiency, the CPM found will be less than the actual DPM
Industry:Environment
The organ receiving the highest dose or highest amount of a particular nuclide that results in the greatest damage to the body as a result of an intake.
Industry:Environment
The total dose resulting from repeated exposures of radiation to the same region, or to the whole body, over a period of time.
Industry:Environment
The basic unit used to describe the intensity of radioactivity in a sample of material. The curie is equal to 37 billion disintegrations per second, which is approximately the rate of decay of 1 gram of radium. Named for Marie and Pierre Curie, who discovered radium in 1898.
Industry:Environment
The decrease in the amount of any radioactive material with the passage of time, due to the spontaneous emission from the atomic nuclei of either alpha, beta particles, or gamma rays.
Industry:Environment
A woman who has voluntarily informed her employer, in writing, of her pregnancy and the estimated date of conception.
Industry:Environment
The reduction or removal of contaminating radioactive material from a structure, area, object, or person.
Industry:Environment
A term that applies to external whole-body exposure, and is the dose equivalent at a tissue depth of 1 cm.
Industry:Environment
A material or device that is sensitive to radiation and can produce a signal suitable for measurement or analysis. A radiation detection instrument.
Industry:Environment
