NSR Query Results
Output year order : Descending NSR database version of April 27, 2024. Search: Author = T.N.Szegedi Found 8 matches. 2023GY01 Phys.Rev. C 107, 025803 (2023) Gy.Gyurky, P.Mohr, A.Angyal, Z.Halasz, G.G.Kiss, Zs.Matyus, T.N.Szegedi, T.Szucs, Zs.Fulop Cross section measurement of the 144Sm(α, n)147Gd reaction for studying the α-nucleus optical potential at astrophysical energies NUCLEAR REACTIONS 144Sm(α, n)147Gd, E=13-20 MeV; measured Eγ Iγ; deduced total σ(E), astrophysical S-factor, constraints on α-nucleus potential. 144Sm(α, X), E=7.5-20 MeV; analyzed experimental information on σ, deduced contribution of different channels to the σ and S-factor. 144Sm(α, γ), E=10-13 MeV; calculated S-factor, astrophysical reaction rate using derived optical model parameters. Activation method. Comparison with statistical model calculations, other experimental data and data from REACLIB AND STARLIB. Targets were irradiated at K20 cyclotron accelerator of Atomki and γ-rays from decay was measured by thin HPGe (LEPS).
doi: 10.1103/PhysRevC.107.025803
2023TO07 Phys.Rev. C 108, 025802 (2023) A.Toth, T.Szucs, T.N.Szegedi, Gy.Gyurky, Z.Halasz, G.G.Kiss, Zs.Fulop Experimental determination of the 3He(α, γ)7Be reaction cross section above the 7Be proton separation threshold NUCLEAR REACTIONS 3He(α, γ)7Be, E=11-20 Mev; measured Eγ, Iγ; deduced σ(E), possible resonance. Activation technique. R-matrix analysis. No prominent structures are observed around known 7Be level, but overall structure of the cross-section suggest a broad resonance peaking around E*=7.5 MeV of 7Be excitation energy. Comparison to previous experimental data obtained with different methods and to the data obtained for mirror reaction 3H(α, γ)7Li. Thin-window gas-cell target irradiated at the Atomki MGC-20 cyclotron. Activated target measured with HPGe detector.
doi: 10.1103/PhysRevC.108.025802
2022KI23 Astrophys.J. 936, 107 (2022) G.G.Kiss, A.Vitez-Sveiczer, Y.Saito, A.Tarifeno-Saldivia, M.Pallas, J.L.Tain, I.Dillmann, J.Agramunt, A.Algora, C.Domingo-Pardo, A.Estrade, C.Appleton, J.M.Allmond, P.Aguilera, H.Baba, N.T.Brewer, C.Bruno, R.Caballero-Folch, F.Calvino, P.J.Coleman-Smith, G.Cortes, T.Davinson, N.Fukuda, Z.Ge, S.Go, C.J.Griffin, R.K.Grzywacz, O.Hall, A.Horvath, J.Ha, L.J.Harkness-Brennan, T.Isobe, D.Kahl, T.T.King, A.Korgul, S.Kovacs, R.Krucken, S.Kubono, M.Labiche, J.Liu, J.Liang, M.Madurga, K.Miernik, F.Molina, A.I.Morales, M.R.Mumpower, E.Nacher, A.Navarro, N.Nepal, S.Nishimura, M.Piersa-Silkowska, V.Phong, B.C.Rasco, B.Rubio, K.P.Rykaczewski, J.Romero-Barrientos, H.Sakurai, L.Sexton, Y.Shimizu, M.Singh, T.Sprouse, T.Sumikama, R.Surman, H.Suzuki, T.N.Szegedi, H.Takeda, A.Tolosa, K.Wang, M.Wolinska-Cichocka, P.Woods, R.Yokoyama, Z.Xu Measuring the β-decay Properties of Neutron-rich Exotic Pm, Sm, Eu, and Gd Isotopes to Constrain the Nucleosynthesis Yields in the Rare-earth Region NUCLEAR REACTIONS 9Be(238U, X), E=345 MeV/nucleon; measured reaction products, TOF, Eβ, Iβ. 159,160,161,162,163,164,165,166Pm, 161,162,163,164,165,166,167,168Sm, 165,166,167,168,169,170Eu, 167,168,169,170,171,172Gd; deduced new isotopes T1/2 and β-delayed neutron emission probabilities, relative r-process abundance pattern for the neutron-star merger scenario. RIKEN Nishina Center, the Advanced Implantation Detector Array (AIDA) and the BRIKEN neutron detector array.
doi: 10.3847/1538-4357/ac80fc
2021SZ02 Phys.Rev. C 104, 035804 (2021) T.N.Szegedi, G.G.Kiss, P.Mohr, A.Psaltis, M.Jacobi, G.G.Barnafoldi, T.Szucs, Gy.Gyurky, A.Arcones Activation thick target yield measurement of 100Mo(α, n)103Ru for studying the weak r-process nucleosynthesis NUCLEAR REACTIONS 100Mo(α, n)103Ru, E=7.0-13.0 MeV; measured Eγ, Iγ, thick target σ(E) by activation technique at the Institute for Nuclear Research (Atomki); deduced recommended astrophysical rate at T9=1.0-5.0, elemental abundances for the MC13 trajectory using α-nucleus optical model potentials (α-OMPs) with Atomki-V2 potential to model the nucleosynthesis scenario. 95,97Ru, 95Tc; observed γ rays in the spectrum.
doi: 10.1103/PhysRevC.104.035804
2020SZ02 Eur.Phys.J. A 56, 182 (2020) T.N.Szegedi, A.Toth, G.G.Kiss, Gy.Gyurky High precision half-life measurement of 95Ru, 95Tc and 95mTc with γ-spectroscopy
doi: 10.1140/epja/s10050-020-00188-8
2019SZ01 Nucl.Phys. A986, 213 (2019) T.N.Szegedi, G.G.Kiss, I.Oksuz, T.Szucs, Gy.Gyurky, Z.Elekes, E.Somorjai, Zs.Fulop High precision half-life measurement of 125Cs and 125Xe with γ-spectroscopy NUCLEAR REACTIONS 124Xe(p, γ)125Cs, E=6-7.5 MeV; measured off-line activation Eγ, Iγ(t) following the β-decay; deduced T1/2. Compared with published results.
doi: 10.1016/j.nuclphysa.2019.04.002
2019SZ02 Phys.Rev. C 99, 055804 (2019), Erratum Phys.Rev. C 105, 069901 (2022) T.Szucs, G.G.Kiss, Gy.Gyurky, Z.Halasz, T.N.Szegedi, Zs.Fulop Cross section of 3He(α, γ)7Be around the 7Be proton separation threshold NUCLEAR REACTIONS 3He(α, γ)7Be, E=7.3-11.35 MeV; measured Eγ, Iγ, Eα, σ(E) using HPGe detector for offline γ spectroscopy. 3He(α, γ)7Be, E(cm)=0.2-5.0 MeV; analyzed data using constrained R-matrix fit; deduced S factors, asymptotic nuclear coefficients (ANCs), and upper limit on α-capture resonance strength using data from present experiment and previous experiments. Relevance to Big Bang nucleosynthesis and solar hydrogen burning.
doi: 10.1103/PhysRevC.99.055804
2019SZ04 Phys.Rev. C 100, 065803 (2019) T.Szucs, P.Mohr, Gy.Gyurky, Z.Halasz, R.Huszank, G.G.Kiss, T.N.Szegedi, Zs.Torok, Zs.Fulop Cross section of α-induced reactions on 197Au at sub-Coulomb energies NUCLEAR REACTIONS 197Au(α, 2n)199Tl, E=17.48, 17.99, 18.49, 18.99, 19.46, 19.92 MeV; 197Au(α, n)200Tl, E=13.62, 13.91, 14.92, 15.91, 16.96, 17.48, 17.99, 18.49, 18.99, 19.46, 19.92 MeV; 197Au(α, γ)201Tl, E=13.91, 14.92, 15.91, 16.96, 17.48, 17.99, 18.99, 19.46, 19.92 MeV; measured Eγ, Iγ, E(x ray), I(x ray), σ(E) by activation method at the MTA Atomki cyclotron in Debrecen; deduced Absolute x-ray intensities from the decays of 199,200,201Tl. 197Au(α, α'), E=24.7 MeV; measured σ(θ) and total σ. Comparison to the best fit statistical model calculation using the AVR A-OMP, and with previous experimental results. Prediction of cross sections in the Gamow window with smaller uncertainties. Relevance to determination of reaction rates in large-scale reaction networks for heavy-element nucleosynthesis.
doi: 10.1103/PhysRevC.100.065803
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