Results 201 to 210 of about 21,148 (234)

Half-lives of 90Sr and 137Cs

Journal of Inorganic and Nuclear Chemistry, 1965
The half-lives of 90Sr and 137Cs have been measured both by specific activity and by direct decay over periods of 6–10 years. The results of the decay measurements are 28·0 ± 0·4 years for 90Sr and 29·9 ± 0·5 years for 137Cs; the values obtained by specific activity measurements are 28·5 ± 0·9 years for 90Sr and 30·9 ± 0·7 years for 137Cs. Recommended “
K.F. Flynn, L.E. Glendenin, A.L. Harkness, E.P. Steinberg   +3 more
openaire   +1 more source

Preparation of 90Y by a 90Sr-90Y chromatographic generator using combined columns containing Sr resin and DGA resin for radionuclide therapy

Journal of Radioanalytical and Nuclear Chemistry, 2021
H. Poorbaygi, A. Roozbahani, K. Moradi, A. Habibpanah, Behnam Pooremad   +4 more
semanticscholar   +1 more source

?????????????? ???????????????????? ?????? ??-?????????????????? (^90Sr) ???? ???????????????????????? ???????????????????????????? ?????????????????????? ???????????????? ???? ???????? ?????????????????????? ???????????????????? ???????????? ??????????????

2013
?????????????????????? ?????????? ???????? ?????????????????????? ???????????????????????????? ?????????? ???????????????????? (????????) ???? ?????????????????? ???????????????????????????? (????) ?????????????????????? ?? ?????????????????????? ???????????????? ??23187 ???? ???????????????????? Ca^2+-???????????????? ?????????????? K^+ ??? ???????????
openaire   +1 more source

???????????????????? ?????????????????????????? 90Sr ?? 137Cs ?? ???????????? ???????????? ?????????????????? ?????????????????? ??????????????????????????

2012
The peculiarities of 90Sr and B7Cs accumulation by higher aquatic plants in Kiev water reservoir during 1991???2008 were analyzed. The decline of 90S rand l37Cs specific activity proceeds the last years, but the decrease of 90Sr takes place slower than 137Cs, that causes change of relation of 90Sr to 137Cs toward to decreasing this index.
openaire   +1 more source

Transfer behaviors of 90Sr and 137Cs from soil to grass to cow milk under natural conditions in Central Italy and their exposure risk

Journal of Radioanalytical and Nuclear Chemistry, 2021
Guogang Jia, L. Magro
semanticscholar   +1 more source

Decontamination of seawater from 137Cs and 90Sr radionuclides using inorganic sorbents.

Journal of Environmental Radioactivity, 2020
A. Voronina, A. Y. Noskova, V. Semenishchev, D. K. Gupta   +3 more
semanticscholar   +1 more source

Half-life evaluations for 3H, 90Sr, and 90Y

Applied Radiation and Isotopes, 2006
A recent paper has reviewed methods for the evaluation of discrepant sets of data and demonstrated the results of applying these methods to the published half-life data of 90Sr and 137Cs [MacMahon, T.D., Pearce, A., Harris, P., 2004. Convergence of techniques for the evaluation of discrepant data. Appl. Radiat. Isot. 60, 275-281].
openaire   +2 more sources

A Spreadsheet Method for 90Sr and 89Sr Interpretation

Health Physics, 1988
A spreadsheet method of handling multiple data points is described for the interpretation of "radiostrontium" analyses. The method uses up to 10 or more counts on one sample, starting 1 d after the chemical separation. The unreliable "day-0" count on a relatively low activity sample is not used since it introduces too many uncertainties. The count data
openaire   +2 more sources

Spark plasma sintering-reactive synthesis of SrWO4 ceramic matrices for 90Sr immobilization

Vacuum, 2020
E. K. Papynov, O. Shichalin, I. Buravlev, A. Belov, A. Portnyagin, A. Fedorets, Y. Azarova, I. Tananaev, V. Sergienko   +8 more
semanticscholar   +1 more source

The uptake of 90sr by ryegrass

Journal of Nuclear Energy. Part A. Reactor Science, 1959
Abstract It is shown that 20 per cent of the ‘fall-out’ 90 Sr deposited in rain can appear in the aerial parts of ryegrass growing during the period of deposition. It is considered that almost all this activity is taken up directly by the leaves, stems and surface roots and not by the roots in the soil.
openaire   +1 more source