74611. |
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74612. |
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74613. |
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74614. |
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74615. |
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74616. |
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74617. |
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74618. |
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74619. |
- Skarnemark, Gunnar, 1948
(författare)
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Short-lived Isotopes of Lanthanum, Cerium and Praseodymium Studied by SISAK-technique
- 1974
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Ingår i: Journal of Inorganic Chemistry. ; 36, s. 1689-
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Tidskriftsartikel (refereegranskat)abstract
- Short-lived, neutron-rich isotopes of the rare earth elements La, Ce and Pr have been studied by the means of a continuous solvent extraction separation method (SISAK). Half-lives, energies and relative intensities are reported for γ-rays attributed to 40 ± 3 sec 144La, 20 ± 5 sec 145La, 11 ± 1 sec 146La, 58 ± 3 sec 147Ce, 45 ± 5 sec 148Ce and 9·1 ± 0·4 sec 150Pr. Indirect evidence for the isolation of 5 sec 149Ce and 5–10 sec 150Ce is also presented along with upper half-life limits of 5 sec for 147La and 148La.
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74620. |
- Skarnemark, Gunnar, 1948, et al.
(författare)
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SIMSISAK–a Method to Model Nuclide Transport in the SISAK System
- 2019
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Ingår i: Solvent Extraction and Ion Exchange. - : Informa UK Limited. - 0736-6299 .- 1532-2262. ; 37:3-4, s. 232-244
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Tidskriftsartikel (refereegranskat)abstract
- A computer model that calculates the transport yield of a nuclide through an arbitrary SISAK experimental set-up has been developed. The model is intended to be used for two types of calculations connected to chemical studies of the heaviest elements. If the production cross section and the nuclide half-life are known, it can be used to estimate the number of decay events to be expected at the detection site. Consequently, if the number of atoms decaying in the detection cells is known, it can be used to estimate the production cross section or the half-life, provided that one of these properties is known.
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