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dc.contributor.authorSzücs, T.
dc.contributor.authorKiss, G. G.
dc.contributor.authorGyürky, Gy
dc.contributor.authorHalász, Z.
dc.contributor.authorFülöp, Zs
dc.contributor.authorRauscher, T.
dc.date.accessioned2018-06-07T16:14:30Z
dc.date.available2018-06-07T16:14:30Z
dc.date.issued2018-01-10
dc.identifier.citationSzücs , T , Kiss , G G , Gyürky , G , Halász , Z , Fülöp , Z & Rauscher , T 2018 , ' Cross section of α-induced reactions on iridium isotopes obtained from thick target yield measurement for the astrophysical γ process ' , Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics , vol. 776 , pp. 396-401 . https://doi.org/10.1016/j.physletb.2017.11.072
dc.identifier.issn0370-2693
dc.identifier.urihttp://hdl.handle.net/2299/20162
dc.description© 2017 The Authors. Published by Elsevier B. V. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited.
dc.description.abstractThe stellar reaction rates of radiative α-capture reactions on heavy isotopes are of crucial importance for the γ process network calculations. These rates are usually derived from statistical model calculations, which need to be validated, but the experimental database is very scarce. This paper presents the results of α-induced reaction cross section measurements on iridium isotopes carried out at first close to the astrophysically relevant energy region. Thick target yields of 191Ir(α,γ)195Au, 191Ir(α,n)194Au, 193Ir(α,n)196mAu, 193Ir(α,n)196Au reactions have been measured with the activation technique between Eα=13.4 MeV and 17 MeV. For the first time the thick target yield was determined with X-ray counting. This led to a previously unprecedented sensitivity. From the measured thick target yields, reaction cross sections are derived and compared with statistical model calculations. The recently suggested energy-dependent modification of the α + nucleus optical potential gives a good description of the experimental data.en
dc.format.extent6
dc.format.extent905436
dc.language.isoeng
dc.relation.ispartofPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
dc.subjectActivation method
dc.subjectAstrophysical γ process
dc.subjectNuclear astrophysics
dc.subjectThick target yield
dc.subjectα-induced reactions
dc.subjectNuclear and High Energy Physics
dc.titleCross section of α-induced reactions on iridium isotopes obtained from thick target yield measurement for the astrophysical γ processen
dc.contributor.institutionCentre for Astrophysics Research
dc.description.statusPeer reviewed
dc.identifier.urlhttp://www.scopus.com/inward/record.url?scp=85037037338&partnerID=8YFLogxK
rioxxterms.versionofrecord10.1016/j.physletb.2017.11.072
rioxxterms.typeJournal Article/Review
herts.preservation.rarelyaccessedtrue


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