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  • noun

Synonyms for radium

an intensely radioactive metallic element that occurs in minute amounts in uranium ores

References in periodicals archive ?
41108 134 1 = Ra-226 <3 pCi/L; 2 = Ra-226 [greater than or equal to]3 pCi/L.
The current maximum contaminant level for total radium is 5 pCi/L (isotopes of Ra-226 and Ra-228 combined).
While DeKalb is not able to meet the current limits of 5 pCi/L for combined Ra-226 and Ra-228 without significant expendit ures of public funds for new treatment facilities, its water supply is already well below the proposed limits of 20 pCi/L for Ra-226 and Ra-228, respectively.
For determining activity degree of elements such as U-238, Ra-226, Th-232, Cs-137, and K-40, we sent 4 soil samples to Iran's atomic energy agency laboratory (Jaber-ebn-Hayyan laboratory), and measured by HPGe Gamma spectrometer with germanium detector.
These samples were transferred from the bags into clean air-tight containers and sealed for 28 days in order for the samples to attain secular equilibrium and also to prevent escape of Ra-226 gas.