1972
DOI: 10.1524/ract.1972.18.2.86
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Identification of Short-lived Isotopes of Zirconium, Niobium, Molybdenum, and Technetium in Fission by Rapid Solvent Extraction Techniques

Abstract: periments, etwa der Potentialsprung oder die Probennahme, nicht prompt realisierbar sind. Exakte Daten über den zeitlichen Ablauf lassen sich nur dadurch erhalten, daß unter stationären Bedingungen das abzulösende Element durch eine Kernreaktion pulsartig erzeugt und sein Übergang in den Elektrolyten mit einem Umlaufsystem verfolgt wird. Verhalten anderer RadionuklideEinige mehr orientierende Versuche mit anderen Nukliden sollten schließlich noch zeigen, daß das hier eingehend untersuchte System kein Sonderfal… Show more

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Cited by 80 publications
(32 citation statements)
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“…If we multiply the yields in Table 1 by the corresponding mass yields [17], the total Tc-yield observed in fission product masses A < 107 at the most probable kinetic energy Ep is (0.134-0.05)%. Thus our earlier results [7] as well as previous radiochemical measurements [19,20], which gave very low Tc-yields, are supported by the present measurements. At present it is difficult to decide whether this sudden drop in the yield from Z = 42 to Z =43 is due to a stable Z = 50 shell in the complementary heavy fragments.…”
Section: Neutron Pairingsupporting
confidence: 92%
“…If we multiply the yields in Table 1 by the corresponding mass yields [17], the total Tc-yield observed in fission product masses A < 107 at the most probable kinetic energy Ep is (0.134-0.05)%. Thus our earlier results [7] as well as previous radiochemical measurements [19,20], which gave very low Tc-yields, are supported by the present measurements. At present it is difficult to decide whether this sudden drop in the yield from Z = 42 to Z =43 is due to a stable Z = 50 shell in the complementary heavy fragments.…”
Section: Neutron Pairingsupporting
confidence: 92%
“…An example of such a discontinuous procedure is the separation of technetium from fission product mixtures [50] illustrated in Fig. 1.…”
Section: Discontinuous Separation Proceduresmentioning
confidence: 99%
“…6. Gamma-ray spectrum of technetium isotopes produced by fission of Pu-239 measured after fast chemical separation [50].…”
Section: Excitation/ionization Schemes For Pu and Npmentioning
confidence: 99%
See 1 more Smart Citation
“…The con centrations of radionuclide impurities in the eluate, measured by y-ray spectrometry, varied in the interval 3 X 10-4... 10~3, thus before the sample preparation a purification was necessary. To this end a separation procedure for technetium from fission products based on the solvent extraction technique by N. Trautmann et al [15] was modified. The purities achieved are given in Sect.…”
Section: Sample Preparationmentioning
confidence: 99%