NSR Query Results
Output year order : Descending NSR database version of April 26, 2024. Search: Author = T.Heftrich Found 17 matches. 2023ER01 Eur.Phys.J. A 59, 69 (2023) P.Erbacher, T.Heftrich, A.Endres, J.Glorius, L.Netterdon, D.Just, K.Gobel, M.Krticka, R.Reifarth, K.Sonnabend, B.Thomas, M.Weigand, A.Zilges Measurement of total and partial cross sections of the 90Zr(p, γ)91Nb reaction with in-beam γ-ray spectroscopy NUCLEAR REACTIONS 90Zr(p, γ), E=2.71-5.1 MeV; measured reaction products, Eγ, Iγ; deduced σ. Comparison with available data. HORUS (High efficiency Observatory for γ-Ray Unique Spectroscopy) detector array at the University of Cologne, Germany.
doi: 10.1140/epja/s10050-023-00984-y
2023GA09 Phys.Rev. C 107, 045805 (2023) R.Garg, S.Dellmann, C.Lederer-Woods, C.G.Bruno, K.Eberhardt, C.Geppert, T.Heftrich, I.Kajan, F.Kappeler, B.Phoenix, R.Reifarth, D.Schumann, M.Weigand, C.Wheldon 179Ta (n, γ) cross-section measurement and the astrophysical origin of the 180Ta isotope NUCLEAR REACTIONS 179Ta(n, γ), E=thermal; measured Eγ, Iγ; deduced thermal and resonance-integral σ. Comparison to previous experimental data. Relevance to the production of 180Ta in s-process. Activation technique. Irradiation of the target at the TRIGA reactor in Mainz.
doi: 10.1103/PhysRevC.107.045805
2023WE01 Nucl.Instrum.Methods Phys.Res. A1048, 167891 (2023) M.Weigand, S.F.Dellmann, B.Bruckner, P.Erbacher, K.Eberhardt, C.Geppert, T.Heftrich, T.Kisselbach, D.Kurtulgil, M.Reich, R.Reifarth, M.Volknandt Gamma intensities for the β-decay of 97Zr RADIOACTIVITY 97Zr(β-) [from 96Zr(n, γ), E thermal]; measured decay products, Eγ, Iγ; deduced γ-ray energies and intensities with help of GEANT simulations. Goethe University in Frankfurt, Germany.
doi: 10.1016/j.nima.2022.167891
2021AL16 Phys.Rev. C 103, 065805 (2021) K.Al-Khasawneh, E.Borris, B.Bruckner, P.Erbacher, S.Fiebiger, K.Gobel, T.Heftrich, T.Kisselbach, D.Kurtulgil, C.Langer, M.Reich, R.Reifarth, B.Thomas, M.Volknandt, M.Weigand, K.Eberhardt, R.Gernhauser Determination of the 209Bi(n, γ) cross section using the NICE detector NUCLEAR REACTIONS 209Bi(n, γ), E=thermal (25 milli-eV) and kT=30 keV; measured charged particles and γ rays using the Neutron Induced Charge-particle Emission NICE detector of plastic scintillator, coupled to two photomultiplier tubes (PMT) at the TRIGA-Mark II reactor of Johannes Gutenberg-University, Mainz; deduced partial capture σ(E), resonance integral, and the Maxwellian average cross section at stellar energy of KT=30 keV. 209Bi(n, γ), kT=5-100 keV; calculated total capture cross-sections using the ENDF data libraries; deduced Maxwellian average cross section. Discussed potential of the new detection technique using NICE detector system.
doi: 10.1103/PhysRevC.103.065805
2021GO04 Phys.Rev. C 103, 025802 (2021) K.Gobel, C.Beinrucker, B.Bruckner, P.Erbacher, S.Fiebiger, M.Fonseca, M.Heftrich, T.Heftrich, F.Kappeler, A.Krasa, D.Kurtulgil, C.Lederer-Woods, R.Plag, A.Plompen, R.Reifarth, S.Schmidt, K.Sonnabend, M.Weigand Neutron activation of 69Ga and 71Ga at kBT ≈ 25 keV NUCLEAR REACTIONS 69,71Ga(n, γ), E<110 keV, centered at 25 keV, [neutrons from 7Li(p, n), E=1512 keV at the 7 MV Van de Graaff accelerator of EC-JRC, Geel]; measured Eγ, Iγ, natural Ga target, cross sections by activation method; deduced simulated neutron energy distribution, spectrum-averaged σ(E), and σ(E) relative to σ(E) for 197Au. Comparison with results in evaluated in KADoNiS v0.3 and ENDF/B-VII.1 libraries. Relevance to production of gallium in the weak s process in massive stars.
doi: 10.1103/PhysRevC.103.025802
2021TE06 Phys.Rev. C 104, 015806 (2021) M.Tessler, J.Zappala, S.Cristallo, L.Roberti, M.Paul, S.Halfon, T.Heftrich, W.Jiang, D.Kijel, A.Kreisel, M.Limongi, Z.-T.Lu, P.Muller, R.Purtschert, R.Reifarth, A.Shor, D.Veltum, D.Vescovi, M.Weigand, L.Weissman Stellar s-process neutron capture cross sections on 78, 80, 84, 86Kr determined via activation, atom trap trace analysis, and decay counting NUCLEAR REACTIONS 78,80,84,86Kr(n, γ)79Kr/79mKr/80Kr/81Kr/81mKr/84Kr/85Kr/85mKr/87Kr, kT=42.5 keV, quasi-Maxwellian; 80,86Kr(γ, n)79Kr/85mKr, E=14.6, 17.6 MeV; measured Eγ, Iγ, average σ(E), 81Kr/80Kr and 85Kr/84Kr isotopic ratios in (n, γ) reactions by activation method, Atom Trap Trace Analysis (ATTA) and decay counting at SARAF-LiLiT facility, Argonne National Laboratory and low-level counting (LLC) facility of the University of Bern; deduced Maxwellian-averaged cross sections (MACS) at kt=3-300 keV, and stellar reaction rates for s-process in 0.01-4 GK range for (n, γ) reactions. 197Au(n, γ)198Au, kT=42.5 keV; 197Au(γ, n)196Au, E=14.6, 17.6 MeV; measured Eγ, Iγ, used as monitor reactions. Comparison with previous experimental cross sections, and with data in JEFF-3.3 library. Discussed astrophysical implications, and impact on s-process calculations of abundances of krypton and neighboring nuclides. RADIOACTIVITY 79Kr(EC); 85mKr(IT); 85mKr, 87Kr(β-)[from 78,84,86Kr(n, γ), kT=42.5 keV]; measured half-lives from γ-decay curves and compared with evaluated data.
doi: 10.1103/PhysRevC.104.015806
2019HE12 Phys.Rev. C 99, 065810 (2019) T.Heftrich, M.Weigand, Ch.E.Dullmann, K.Eberhardt, S.Fiebiger, J.Glorius, K.Gobel, C.Guerrero, R.Haas, S.Heinitz, J.Lerendegui-Marco, F.Kappeler, J.D.Kaiser, U.Koster, C.Langer, S.Lohse, F.Ludwig, R.Reifarth, D.Renisch, K.Scheutwinkel, D.Schumann, N.Wiehl, C.Wolf Thermal (n, γ) cross section and resonance integral of 171Tm NUCLEAR REACTIONS 171Tm(n, γ), E=thermal; measured Eγ, Iγ, thermal and epithermal neutron fluence, σ, and resonance integral using activation technique at Triga reactor facility in Mainz. Comparison with previous experimental values, and with data in evaluated libraries. Relevance to s process in thermally pulsing asymptotic giant branch (TP-AGB) stars.
doi: 10.1103/PhysRevC.99.065810
2019HO08 Phys.Lett. B 795, 682 (2019) M.Holl, V.Panin, H.Alvarez-Pol, L.Atar, T.Aumann, S.Beceiro Novo, J.Benlliure, C.A.Bertulani, J.M.Boillos, K.Boretzky, M.Caamano, C.Caesar, E.Casarejos, W.Catford, J.Cederkall, L.Chulkov, D.Cortina-Gil, E.Cravo, I.Dillmann, P.Diaz Fernandez, Z.Elekes, J.Enders, L.M.Fraile, D.Galaviz-Redondo, R.Gernhauser, P.Golubev, T.Heftrich, M.Heil, M.Heine, A.Heinz, A.Henriques, H.T.Johansson, B.Jonson, N.Kalantar-Nayestanaki, R.Kanungo, A.Kelic-Heil, T.Kroll, N.Kurz, C.Langer, T.Le Bleis, S.Lindberg, J.Machado, E.Nacher, M.A.Najafi, T.Nilsson, C.Nociforo, S.Paschalis, M.Petri, R.Reifarth, G.Ribeiro, C.Rigollet, D.M.Rossi, D.Savran, H.Scheit, H.Simon, O.Sorlin, I.Syndikus, O.Tengblad, Y.Togano, M.Vandebrouck, P.Velho, F.Wamers, H.Weick, C.Wheldon, G.L.Wilson, J.S.Winfield, P.Woods, M.Zhukov, K.Zuber Quasi-free neutron and proton knockout reactions from light nuclei in a wide neutron-to-proton asymmetry range NUCLEAR REACTIONS 1H(11C, 2p), (10C, np), (11C, np), (12C, np), E=300-400 MeV/nucleon; measured reaction products, Ep, Ip, En, In; deduced σ and momentum distributions. Comparison with DWIA calculations.
doi: 10.1016/j.physletb.2019.06.069
2019LE04 Phys.Lett. B 790, 458 (2019); Erratum Phys.Lett. B 840, 137835 (2023) C.Lederer-Woods, U.Battino, P.Ferreira, A.Gawlik, C.Guerrero, F.Gunsing, S.Heinitz, J.Lerendegui-Marco, A.Mengoni, R.Reifarth, A.Tattersall, S.Valenta, C.Weiss, O.Aberle, J.Andrzejewski, L.Audouin, V.Becares, M.Bacak, J.Balibrea, M.Barbagallo, S.Barros, F.Becvar, C.Beinrucker, F.Belloni, E.Berthoumieux, J.Billowes, D.Bosnar, M.Brugger, M.Caamano, F.Calvino, M.Calviani, D.Cano-Ott, F.Cerutti, E.Chiaveri, N.Colonna, G.Cortes, M.A.Cortes-Giraldo, L.Cosentino, L.A.Damone, K.Deo, M.Diakaki, M.Dietz, C.Domingo-Pardo, R.Dressler, E.Dupont, I.Duran, B.Fernandez-Dominguez, A.Ferrari, P.Finocchiaro, R.J.W.Frost, V.Furman, K.Gobel, A.R.Garcia, I.Gheorghe, T.Glodariu, I.F.Goncalves, E.Gonzalez-Romero, A.Goverdovski, E.Griesmayer, H.Harada, T.Heftrich, A.Hernandez-Prieto, J.Heyse, D.G.Jenkins, E.Jericha, F.Kappeler, Y.Kadi, T.Katabuchi, P.Kavrigin, V.Ketlerov, V.Khryachkov, A.Kimura, N.Kivel, I.Knapova, M.Kokkoris, M.Krticka, E.Leal-Cidoncha, H.Leeb, M.Licata, S.Lo Meo, R.Losito, D.Macina, J.Marganiec, T.Martinez, C.Massimi, P.Mastinu, M.Mastromarco, F.Matteucci, E.Mendoza, P.M.Milazzo, F.Mingrone, M.Mirea, S.Montesano, A.Musumarra, R.Nolte, F.R.Palomo-Pinto, C.Paradela, N.Patronis, A.Pavlik, J.Perkowski, J.I.Porras, J.Praena, J.M.Quesada, T.Rauscher, A.Riego-Perez, M.Robles, C.Rubbia, J.A.Ryan, M.Sabate-Gilarte, A.Saxena, P.Schillebeeckx, S.Schmidt, D.Schumann, P.Sedyshev, A.G.Smith, A.Stamatopoulos, S.V.Suryanarayana, G.Tagliente, J.L.Tain, A.Tarifeno-Saldivia, L.Tassan-Got, A.Tsinganis, G.Vannini, V.Variale, P.Vaz, A.Ventura, V.Vlachoudis, R.Vlastou, A.Wallner, S.Warren, M.Weigand, T.Wright, P.Zugec Measurement of 73Ge(n, γ) cross sections and implications for stellar nucleosynthesis NUCLEAR REACTIONS 73Ge(n, γ), E<300 keV; measured reaction products, En, In; deduced σ, resonance energies and capture kernels, astrophysical impact, Maxwellian-averaged σ for ground and excited states capture. The neutron time-of-flight facility n_TOF at CERN.
doi: 10.1016/j.physletb.2019.01.045
2019OZ03 Phys.Lett. B 797, 134800 (2019) F.C.Ozturk, B.Akkus, D.Atanasov, H.Beyer, F.Bosch, D.Boutin, C.Brandau, P.Buhler, R.B.Cakirli, R.J.Chen, W.D.Chen, X.C.Chen, I.Dillmann, C.Dimopoulou, W.Enders, H.G.Essel, T.Faestermann, O.Forstner, B.S.Gao, H.Geissel, R.Gernhauser, R.E.Grisenti, A.Gumberidze, S.Hagmann, T.Heftrich, M.Heil, M.O.Herdrich, P.-M.Hillenbrand, T.Izumikawa, P.Kienle, C.Klaushofer, C.Kleffner, C.Kozhuharov, R.K.Knobel, O.Kovalenko, S.Kreim, T.Kuhl, C.Lederer-Woods, M.Lestinsky, S.A.Litvinov, Yu.A.Litvinov, Z.Liu, X.W.Ma, L.Maier, B.Mei, H.Miura, I.Mukha, A.Najafi, D.Nagae, T.Nishimura, C.Nociforo, F.Nolden, T.Ohtsubo, Y.Oktem, S.Omika, A.Ozawa, N.Petridis, J.Piotrowski, R.Reifarth, J.Rossbach, R.Sanchez, M.S.Sanjari, C.Scheidenberger, R.S.Sidhu, H.Simon, U.Spillmann, M.Steck, Th.Stohlker, B.H.Sun, L.A.Susam, F.Suzaki, T.Suzuki, S.Yu.Torilov, C.Trageser, M.Trassinelli, S.Trotsenko, X.L.Tu, P.M.Walker, M.Wang, G.Weber, H.Weick, N.Winckler, D.F.A.Winters, P.J.Woods, T.Yamaguchi, X.D.Xu, X.L.Yan, J.C.Yang, Y.J.Yuan, Y.H.Zhang, X.H.Zhou New test of modulated electron capture decay of hydrogen-like 142Pm ions: Precision measurement of purely exponential decay RADIOACTIVITY 142Pm(EC); measured decay products; deduced T1/2.
doi: 10.1016/j.physletb.2019.134800
2019PA03 Phys.Rev. C 99, 015801 (2019) S.Pavetich, A.Wallner, M.Martschini, S.Akhmadaliev, I.Dillmann, K.Fifield, S.Halfon, T.Heftrich, F.Kappeler, C.Lederer-Woods, S.Merchel, M.Paul, R.Reifarth, G.Rugel, P.Steier, M.Tessler, S.Tims, M.Weigand, L.Weissman Accelerator mass spectrometry measurement of the reaction 35Cl (n, γ) 36Cl at keV energies NUCLEAR REACTIONS 35Cl(n, γ), kT=2-100 keV; measured Maxwellian averaged σ(E) (MACS) using neutron activation combined with accelerator mass spectrometry (AMS) technique; deduced 36Cl/35Cl ratios for three neutron irradiated samples, MACS at kt=30 keV, and stellar abundances of 35Cl, 36Cl and 36S. Neutron activations performed at the Karlsruhe Van de Graaff accelerator and at the superconducting linear accelerator of the Soreq Applied Research Accelerator Facility using the 7Li(p, n)7Be reaction. AMS measurements of the irradiated samples performed at the 3 MV Vienna Environmental Research Accelerator, the 6 MV tandem accelerator at the Dresden AMS facility, and the 14 UD tandem accelerator of the Australian National University in Canberra. Comparison with previous experimental values, NON-SMOKER and MOST theoretical calculations, compiled KADoNiS database, and evaluated libraries ENDF-B/VII.1, JEFF-3.2, JENDL-4.0 and TENDL-2015.
doi: 10.1103/PhysRevC.99.015801
2018RE13 Eur.Phys.J.Plus 133, 424 (2018) R.Reifarth, P.Erbacher, S.Fiebiger, K.Gobel, T.Heftrich, M.Heil, F.Kappeler, N.Klapper, D.Kurtulgil, C.Langer, C.Lederer-Woods, A.Mengoni, B.Thomas, S.Schmidt, M.Weigand, M.Wiescher Neutron-induced cross sections NUCLEAR REACTIONS 103Rh, 110,111,112,113,114,116Cd, 114,115,116,117,118,120Sn, 122,123,124,125,126Te, 128,129,130Xe, 134,135,136,137Ba, 141Pr, 142,143,144,145,146,148Nd, 148,149,150,151,152Sm, 152,154,155,156,157,158Gd, 160,161,162,163,164Dy, 170,171,172,173,174,176Yb, 175,176Lu, 176,177,178,179,180Hf, 180,181Ta, 197Au(n, γ), E∼24 keV; analyzed available data on activation technique and the time-of-flight method; deduced multiple corrections for KADoNiS library based on standards library, new 197Au(n, γ) σ evaluation.
doi: 10.1140/epjp/i2018-12295-3
2018WE04 Phys.Rev. C 97, 035803 (2018) M.Weigand, T.Heftrich, Ch.E.Dullmann, K.Eberhardt, S.Fiebiger, J.Glorius, K.Gobel, R.Haas, C.Langer, S.Lohse, R.Reifarth, D.Renisch, C.Wolf 66.7-keV γ-line intensity of 171Tm determined via neutron activation RADIOACTIVITY 171Er(β-)[from 170Er(n, γ), E=thermal]; 171Tm(β-)[from 171Er β- decay]; measured Eγ, Iγ, E(x rays), I(x rays), precise intensity of the 66.7-keV γ ray from the decay of 171Tm; deduced number of 171Er and 171Tm atoms produced in reactor irradiation. Relevance to 171Tm neutron capture cross section, and s process in thermally pulsing asymptotic giant branch stars.
doi: 10.1103/PhysRevC.97.035803
2017FI05 J.Phys.(London) G44, 075101 (2017) S.Fiebiger, Z.Slavkovska, U.Giesen, K.Gobel, T.Heftrich, A.Heiske, R.Reifarth, S.Schmidt, K.Sonnabend, B.Thomas, M.Weigand Alpha-induced reactions on selenium between 11 and 15 MeV NUCLEAR REACTIONS Se(α, X)77Kr/79Kr/85Kr/77Br, E=11-15 MeV; measured reaction products, Eγ, Iγ; deduced thick target yields, σ. Comparison with TALYS-1.6 calculations.
doi: 10.1088/1361-6471/aa7198
2017WE02 Phys.Rev. C 95, 015808 (2017) M.Weigand, C.Beinrucker, A.Couture, S.Fiebiger, M.Fonseca, K.Gobel, M.Heftrich, T.Heftrich, M.Jandel, F.Kappeler, A.Krasa, C.Lederer, H.Y.Lee, R.Plag, A.Plompen, R.Reifarth, S.Schmidt, K.Sonnabend, J.L.Ullmann 63Cu (n, γ) cross section measured via 25 keV activation and time of flight NUCLEAR REACTIONS 63Cu(n, γ), E=75 eV to 500 keV; measured Eγ, Iγ, time of flight, σ(E) by activation with a quasistellar neutron spectrum at JRC-Geel, and the energy dependence of the cross section measured with an isotopically enriched 63Cu sample placed in the center of the DANCE detector array at LANSCE-LANL facility; deduced Maxwellian-averaged cross sections for the whole temperature range relevant for different scenarios of the s-process nucleosynthesis. Comparison with previous experimental measurements and with evaluated cross sections from TENDL-2015.
doi: 10.1103/PhysRevC.95.015808
2015HE18 Phys.Rev. C 92, 015806 (2015) T.Heftrich, M.Bichler, R.Dressler, K.Eberhardt, A.Endres, J.Glorius, K.Gobel, G.Hampel, M.Heftrich, F.Kappeler, C.Lederer, M.Mikorski, R.Plag, R.Reifarth, C.Stieghorst, S.Schmidt, D.Schumann, Z.Slavkovska, K.Sonnabend, A.Wallner, M.Weigand, N.Wiehl, S.Zauner Thermal neutron capture cross section of the radioactive isotope 60Fe NUCLEAR REACTIONS 60Fe(n, γ), E=thermal and epithermal; measured Eγ, Iγ, capture σ, resonance integral at Mainz TRIGA research reactor facility; deduced Maxwellian averaged cross section for kT=0.005 eV to 1 MeV, negligible s-wave part of the direct capture in the astrophysical regime of kT=10-100 keV. Comparison with evaluated cross sections in TENDL-2014 library.
doi: 10.1103/PhysRevC.92.015806
2015WE14 Phys.Rev. C 92, 045810 (2015) M.Weigand, T.A.Bredeweg, A.Couture, K.Gobel, T.Heftrich, M.Jandel, F.Kappeler, C.Lederer, N.Kivel, G.Korschinek, M.Krticka, J.M.O'Donnell, J.Ostermoller, R.Plag, R.Reifarth, D.Schumann, J.L.Ullmann, A.Wallner 63Ni(n, γ) cross sections measured with DANCE NUCLEAR REACTIONS 63Ni(n, γ), E=40 eV-500 keV; measured Eγ, Iγ, σ(E) using 4π BaF2 array DANCE at LANSCE-LANL, neutron flux; deduced resonances, Maxwellian averaged cross sections (MACS), relative production of isotopes in the vicinity of 63Ni and Ni to As elements for the s process. Comparison with KADoNiS database and experimental data from n_TOF collaboration.
doi: 10.1103/PhysRevC.92.045810
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