6533b835fe1ef96bd129e909

RESEARCH PRODUCT

α-Decay branching ratios measured by γ-ray tagging

P. J. SappleJuha UusitaloJ. SimpsonM. SandzeliusMatti LeinoM. NymanL. BiancoBo CederwallMarina PetriBaharak HadiniaPaul GreenleesPeter M. JonesPauli PeuraM. B. Gomez HornillosA. PuurunenC. ScholeyP. RahkilaPanu RuotsalainenSteffen KetelhutJan SarénR. D. PageD. T. JossE. S. PaulR. JulinJ. ThomsonUlrika JakobssonM. Labiche

subject

PhysicsNuclear reactionNuclear and High Energy PhysicsIsotopeBranching fractionNuclideAlpha decayAtomic physicsInstrumentationRadioactive decayCharged particleSpectral line

description

Abstract The nuclides 168–170Pt were produced by bombarding isotopically enriched 92,94Mo targets with 336, 348 MeV 78Kr ions. Prompt γ rays were detected at the target position and provided a selection criterion for the 168–170Pt nuclei. This technique enables the problem of the background from higher-energy α decays in the spectrum to be circumvented. The Pt nuclei were separated in flight using the gas-filled separator RITU and implanted into the GREAT spectrometer, which was used to study subsequent α decays. The α -decay branching ratios of 164–166Os were deduced from the fraction of selected 168–170Pt nuclei correlated with α decays of 164–166Os. The resulting branching ratios agree with the literature values but can have improved precision.

https://doi.org/10.1016/j.nima.2008.09.020