Independent Isotopic Fission Yield Studies With Jyfltrap

Penttilä, H.; Elomaa, V.‐V.; Eronen, T.; Gorelov, D.; Hakala, J.; Jokinen, A.; Kankainen, A.; Karvonen, P.; Kolhinen, V. S.; Moore, I. D.; Rahaman, S.; Rinta‐Antila, S.; Rissanen, J.; Rubchenya, V. A.; Saastamoinen, A.; Sonoda, Takashi; Weber, C.F.; Äystö, J.

doi:10.1142/9789814525435_0026

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“…The shaded area represents the 1σ confidence band of the fit. 31,52,53) were measured only at IGISOL-4. For elements heavier than lanthanum (Z = 57) there is only a partial measurement at IGISOL-4.…”

Section: Resultsmentioning

confidence: 99%

“…The same mass spectra could also be used to determine isotopic yields of several Rh and Ag isotopes. The history of A=88 has been scaled in such a way that it mimics the reference A=90 yield, see [29,31] for details. The total measurement time is longer at IGISOL-4 because of higher frequency resolution and longer frequency range of each mass scan.…”

Section: Stable Isotopesmentioning

confidence: 99%

“…In order to visualise the evolution of A p it is compared to the unchanged nucleon composition value A U N C , which has the same neutron/proton ratio as the 239 Np compound nucleus. In our earlier paper [31] A U N C was referred to as A U CD , where UCD stands for unchanged charge distribution. Since there is a UCD model [50], which assumes uniform proton density in the fissioning system during the fission process, but also takes into account the emitted neutrons, the term used here is modified to avoid confusion.…”

Section: Summary Of the Yield Distributionsmentioning

confidence: 99%

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Independent isotopic yields in 25 MeV and 50 MeV proton-induced fission of natU

et al. 2016

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Abstract. Independent isotopic yields for elements from Zn to La in 25-MeV proton-induced fission of nat U were determined with the JYFLTRAP facility. In addition, isotopic yields for Zn, Ga, Rb, Sr, Zr, Pd and Xe in 50-MeV proton-induced fission of nat U were measured. The deduced isotopic yield distributions are compared with a Rubchenya model, GEF model with universal parameters and the semiempirical Wahl model. Of these, the Rubchenya model gives the best overall agreement with the obtained data. Combining the isotopic yield data with mass yield data to obtain the absolute independent yields was attempted. The result depends on the mass yield distribution.PACS. 24.75.+i General properties of fission -25.85.-w Fission reactions -25.85.Ge Charged-particleinduced fission -28.60.+s Isotope separation and enrichment

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Section: Resultsmentioning

confidence: 99%

Section: Stable Isotopesmentioning

confidence: 99%