Definitions for "Specific activity"
Related Terms:
Activity, Curie, Becquerel, Picocurie, Pci/l, Millicurie, Decay constant, Half-life, Radioactive tracer, Radioisotopes, Radioisotope, Radium, Dose rate, Polonium, Radioactive material, Cask, Thorium, Radiotracer, Radioactive waste, Radionuclide, Radionuclides, Parent isotope, Decay chain, Decay, Dpm, Gray, Roentgen, Tracer, Half life, Density, Radioactive isotope, Radioactive decay, Decay product, Americium, G/t, Ppm , Parent, Mg/m3, Molar volume, Specific volume, Absorbed dose, Flux , Parts per million, Dirty bomb, Radioactive dating, Ppb, Radiotoxicity, Linear density, Energy density
The number of radioactive decays that take place per unit mass. In general this means that a low specific activity material releases a relatively small amount of radiation. Back to The Nuclear Fuel Cycle.
A measure of the radioactivity of a unit weight (generally one gram) of material.
The total radioactivity of a given nuclide per gram of an element. This is a measure of the concentration of radioactivity. Specific activity can be expressed as µCi/gram, Bq/L, etc.
Total activity of a given nuclide per gram of a compound, element, or radioactive nuclide.
The radioactivity of an isotope per unit weight of the element in a sample. The number of radioactive decays per unit mass of a sample. Additional Note: 10CFR part 71 includes the note that the radioactivity is uniformly distributed through the material.
The quantity of radioactivity per unit mass; for example, dpm/g or Bq
The activity of a radionuclide divided by the mass of the element whose radionuclide is considered. The activity of a material divided by its mass or volume.
Total activity of a given radionuclide per unit mass or volume.
The number of atoms of a radioactive substance that disintigrate per unt time per unit mass of a radioisotope.
the amount of radioactivity per unit mass of radioactive material. It is most frequently expressed in curies per millimole of material (Ci/mmol).
The portion of functionally active alpha1- proteinase inhibitor divided by the total amount (both antigenic and functional) of protein in a given sample.
The activity of the radionuclide per unit mass of that nuclei. See radioactive.
The number of Curies per gram of material. Specific activity is a function of half-life, and is therefore also unique to each radionuclide.
The activity of the radionuclide per unit mass of the material that contains the radionuclide. [For DU the specific activity is about 0.4 ï¿1/2Ci/g.)