curie

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curie

 (Ci) [ku´re]
a unit of radioactivity, defined as the quantity of any radioactive nuclide in which the number of disintegrations per second is 3.700 × 1010.

Curie

Marie (1867-193) and Pierre (1859-1906), French chemists and physicists and Nobel laureates (wife and husband). See: curium.

cu·rie (C, c, Ci),

(kyū'rē),
A unit of measurement of radioactivity, 3.70 ×1010 disintegrations per second; formerly defined as the radioactivity of the amount of radon in equilibrium with 1 g radium; superseded by the S.I. unit, the becquerel (1 disintegration per second).
[Marie (1867-1934) and Pierre (1859-1906) Curie, French chemists and physicists and Nobel laureates]

curie

An obsolete unit of radioactivity (i.e., radioactive decay) equal to 3.7 x 1010 disintegrations/sec of a radioactive nuclide, roughly equivalent to the activity of 1 g of radium; the curie was replaced by the SI-derived unit for radioactivity, the Becquerel (2.70 x 10-11 curies).

cu·rie

(Ci) (kyūr'ē)
A unit of measurement of radioactivity, 3.70 × 1010 disintegrations per second; superseded by the S.I. unit, the becquerel (1 disintegration per second).

Curie,

Marie, French physicist, 1867-1934.
curie - a unit of measurement of radioactivity.

Curie,

Pierre, French physicist, 1859-1906.
curie - a unit of measurement of radioactivity.

cu·rie

(C) (kyūr'ē)
A unit of measurement of radioactivity superseded by the S.I. unit, the becquerel (1 disintegration per second).
References in periodicals archive ?
The 50 picocurie per gram limit comes from a health department-commissioned study by Argonne National Laboratory, which found a landfill worker exposed to TENORM at a rate of 51.6 picocuries per gram could reach the recommended limit of 100 millirems per year.
Morse, Worcester's commissioner of public health, said he stands by the recommendation that people test their homes and mitigate any levels over 4 picocuries per liter.
For Radon, the measure sets a standard of 3000 picocuries per liter.
That, Lubin says, argues that reducing residential concentrations to a value below EPA's action level--4 picocuries per liter of air--would offer long-term health benefits.
Counties are assigned risk levels based on the EPA guideline that concentrations should be below 4 picocuries per liter of air (pCi/L).
Outdoors, the average radon gas concentration is under 0.5 picocuries per litre (pCi/L) - a negligible health risk.
Test results are given in a measurement called picocuries. If the test shows more than four picocuries per liter of air, the EPA suggests checking several other rooms in the house.
Results must be reported in picocuries per liter (pCi/l) and provided to the individual consumer within ten days of receipt of the detector by the laboratory.
When testing reveals levels greater than 4 picocuries per liter (pCi/L), mitigation is recommended by U.S.
The EPA says the average level of radium in soil is below five picocuries per gram, which is the maximum threshold for waste disposal at standard dumps in North Dakota and many other states.
WORCESTER - The range of radon levels found in January 1996 testing of City View School rooms, with the exception of a basement storage room, was between 3.2 and 309.1 picocuries of radon per liter.
Individual exposures to radon for the period 1949-1967 were assigned using industry tables of mean annual [.sup.222.Rn] concentrations in picocuries per liter for each mine.