90Sr

90Sr

Symbol for strontium 90.
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References in periodicals archive ?
Micka, "A new internal pair production branching ratio of 90Y: the development of a non-destructive assay for 90Y and 90Sr," Applied Radiation and Isotopes, vol.
The doses contributions from ingested 137Cs 14C and 90Sr were also included to these doses [9].
Manchanda, "Separation of 90Y from 90Sr using zirconium vanadate as the ion exchanger," Applied Radiation and Isotopes, vol.
Uncertainties in dose coefficients from ingestion of 131I, 137Cs, and 90Sr. Health Phys 86(5):460-482.
Data obtained during survey decreasing trend of 137cs and 90sr concentrations in sea water with time is observed from 1967 to 1995.
Production of long lived parent radionuclides for generators; 68Ge, 82Sr, 90Sr and 188W.
Natural (210Pb, 7Be) and fallout (137Cs, 239,240Pu, 90Sr) radionuclides as geochemical tracers of sedimentation in Greifensee, Switzerland.
I was now using ion-exchange by the truckload, quite a change from my first experience with it in Professor Tomlinson's undergraduate laboratory where we used a thimble full of ion-exchange resin to separate 90Y from 90Sr. I also had to become familiar with pumps, heat-exchangers and other bits and pieces of electrical and mechanical equipment that were totally foreign to my chemical background.
A subset of 39 samples of various tissues was analyzed for the alpha and beta emitters 239,240Pu and 90Sr. Plutonium levels were near the threshold of detectability (~0.1 Bq kg-1dry weight) in 6 of the 39 samples; all other samples had no detectable plutonium.
The thesis details research involving sodium nonatitanate, a more efficient ion exchanger, to separate the highly radioactive isotopes (90Sr, 137Cs, and transuranics) from the large quantities of inert salts.
89Sr and 90Sr are the prominent radionuclides of strontium that are formed, with [sup.45.Sr] being one of the most hazardous because of its deposition in the skeleton, its long biological half-life (~10 years), and a decay half-life of ~30 years.