A Rapid Radiochemical Separation Method for Selenium

Marmol, P. del; Tigchelt, H. Van

doi:10.1524/ract.1969.12.1.57

Cited by 6 publications

(3 citation statements)

References 8 publications

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“…A few per cent of the germanium present was also found in the metal mirrors (171,173) . Covolatilized selenium can be recovered in solid calcium sulfate (177) or in water (178) with a yield of ",,2 (177) or 20 per cent (178) in 5 sec. This method was used for indirect detection of 6-sec 87Se (177).…”

Section: Separations From Aqueous Solutionsmentioning

confidence: 99%

Untitled

1969

Annu. Rev. Nucl. Sci.

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Section: Separations From Aqueous Solutionsmentioning

confidence: 99%

Untitled

1969

Annu. Rev. Nucl. Sci.

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“…It has been shown by REGIER et al [2] that a samarium filter reduces the yields of n5 Cd by a factor of 2.4. Similarly a cadmium filter shows an effect of about 30% [3] and this was used by CROALL and WILLIS to study the yields of 77 As and 78 As [4]. However, instead of the expected decrease in the yields of these two isotopes in the epi-Cd fission of 239 Pu these authors observed a considerable increase.…”

Section: Introductionmentioning

confidence: 99%

“…However the yield was low (2%) and there was some contamination from antimony and arsenic. By altering the reaction conditions and using water as a trapping medium, the yield of this method has recently been increased to 25% and the contamination greatly reduced [4],…”

Section: Introductionmentioning

confidence: 99%

The Yield of ⁷²Zn in the epi-Sm Fission of ²³⁹Pu

Tong

Fritze

1969

Radiochimica Acta

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The yield of ,2 Zn in the epi-Sm fission of 239 Pu has been measured and was found to be 30 + 1% lower than in the fission of 23, Pu caused by reactor-spectrum neutrons. Similarly the yields for 115 Cd and 112 Pd were found to be lower by 46 + 1% and 24 + 3%, respectively. The yields of 97 Zr, 9 'Nb, 99 Mo-99 Tc, 132 Te, 132 1, 133 1, 135 Xe, 143 Ce did not show any significant fluctuations. The results are consistent with the two-mode fission hypothesis. ZusammenfassungDie Ausbeute von 72 Zn in der epi-Sm Spaltung von 239 Pu wurde gemessen. Sie ist 30 + 1% niedriger als in der Plutoniumspaltung mit Reaktorneutronen. In ähnlicher Weise sind die Ausbeuten von 115 Cd und 112 Pd um 46 + 1% und 24 ± 3% niedriger. Die Ausbeuten von <"Zr, 97 Nb, "Mo-"Tc, 132 Te, 132 1, 133 1, 135 Xe, 143 Ce zeigten keine nennenswerten Schwankungen. Die Ergebnisse stimmen mit der "two-mode" Spalthypothese überein. R6sunräOn a mesure le rendement en ,2 Zn resultant de la fission epi-Sm du 239 Pu. II est inferieur de 30 ± 1% au rendement obtenu dans la fission du plutonium par neutrons thermiques. De meme, les rendements en 115 Cd et en JI2 Pd sont inferieurs respectivement de 46 + 1% et de 24 τ 3%. On n'a pas observe de variations notables pour los rendements en 97 Zr, 97 Nb, " e Mo-"Tc, 132 I, 133 1, 135 Xe, 143 Ce. Ces resultats correspondent ä l'hypothese de fission «ä deux modes».

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