Vetle Wegner Ingeberg

• Guttormsen, Magne Sveen; Alhassid, Yoram; Ryssens, Wouter; Ay, K.o.; Ozgur, Mustafa & Algin, Emel [Vis alle 22 forfattere av denne artikkelen] (2021). Strong enhancement of level densities in the crossover from spherical to deformed neodymium isotopes. Physics Letters B. ISSN 0370-2693. 816. doi: 10.1016/j.physletb.2021.136206. Fulltekst i vitenarkiv
• Malatji, Kgashane Leroy; Beckmann, Kristine Sønstevold; Wiedeking, Mathis; Siem, Sunniva; Goriely, Stephane & Larsen, Ann-Cecilie [Vis alle 21 forfattere av denne artikkelen] (2021). Statistical properties of the well deformed 153,155Sm nuclei and the scissors resonance. Physical Review C. ISSN 2469-9985. 103(1). doi: 10.1103/PhysRevC.103.014309. Fulltekst i vitenarkiv
• Zeiser, Fabio; Tveten, Gry Merete; Bello Garrote, Frank Leonel; Guttormsen, Magne Sveen; Larsen, Ann-Cecilie & Ingeberg, Vetle Wegner [Vis alle 8 forfattere av denne artikkelen] (2021). The gamma-ray energy response of the Oslo Scintillator Array OSCAR. Nuclear Instruments and Methods in Physics Research Section A : Accelerators, Spectrometers, Detectors and Associated Equipment. ISSN 0168-9002. 985. doi: 10.1016/j.nima.2020.164678. Fulltekst i vitenarkiv
• Ingeberg, Vetle Wegner; Siem, Sunniva; Wiedeking, Mathis; Sieja, Kamila; Bleuel, D.l. & Brits, C.P. [Vis alle 29 forfattere av denne artikkelen] (2020). First application of the Oslo method in inverse kinematics. European Physical Journal A. ISSN 1434-6001. 56. doi: 10.1140/epja/s10050-020-00070-7. Fulltekst i vitenarkiv Vis sammendrag

  The γ-ray strength function (SF) and nuclear level density (NLD) have been extracted for the first time from inverse kinematic reactions with the Oslo method. This novel technique allows measurements of these properties across a wide range of previously inaccessible nuclei. Proton–γ coincidence events from the d(⁸⁷Kr,p)⁸⁶Kr reaction were measured at iThemba LABS and the γSF and NLD in ⁸⁶Kr was obtained. The low-energy region of the γSF is compared to shell-model calculations, which suggest this region to be dominated by M1 strength. The γSF and NLD are used as input parameters to Hauser–Feshbach calculations to constrain (n,γ) cross sections of nuclei using the TALYS reaction code. These results are compared to ⁸⁶Kr(n,γ) data from direct measurements.

• Brits, C.P.; Malatji, Kgashane L.; Wiedeking, M.; Kheswa, BV; Goriely, S. & Bello Garrote, Frank Leonel [Vis alle 27 forfattere av denne artikkelen] (2019). Nuclear level densities and γ-ray strength functions of 180,181,182Ta. Physical Review C. ISSN 2469-9985. 99(5). doi: 10.1103/PhysRevC.99.054330. Fulltekst i vitenarkiv
• Zeiser, Fabio; Tveten, Gry Merete; Potel, Gregory; Larsen, Ann-Cecilie; Guttormsen, Magne Sveen & Laplace, Thibault A. [Vis alle 22 forfattere av denne artikkelen] (2019). Restricted spin-range correction in the Oslo method: The example of nuclear level density and γ-ray strength function from 239Pu(d, pγ) 240Pu. Physical Review C. ISSN 2469-9985. 100:024305(2), s. 1–9. doi: 10.1103/PhysRevC.100.024305. Fulltekst i vitenarkiv
• Liddick, Sean N.; Larsen, Ann-Cecilie; Guttormsen, Magne Sveen; Spyrou, Artemis; Crider, Benjamin P. & Naqvi, Farheen [Vis alle 30 forfattere av denne artikkelen] (2019). Benchmarking the extraction of statistical neutron capture cross sections on short-lived nuclei for applications using the β-Oslo method . Physical Review C. ISSN 2469-9985. 100:024624(2), s. 1–12. doi: 10.1103/PhysRevC.100.024624. Fulltekst i vitenarkiv
• Utsunomiya, Hiroaki; Renstrøm, Therese; Tveten, Gry Merete; Goriely, Stéphane; Ari-izumi, Takashi & Ingeberg, Vetle Wegner [Vis alle 12 forfattere av denne artikkelen] (2019). γ-ray strength function for barium isotopes. Physical Review C. ISSN 2469-9985. 100(3), s. 034605-1–034605-7. doi: 10.1103/PhysRevC.100.034605. Fulltekst i vitenarkiv
• Malatji, Kgashane Leroy; Wiedeking, Mathis; Goriely, Stephane; Brits, Christiaan Petrus; Kheswa, Bonginkosi Vincent & Bello Garrote, Frank Leonel [Vis alle 22 forfattere av denne artikkelen] (2019). Re-estimation of 180Ta nucleosynthesis in light of newly constrained reaction rates. Physics Letters B. ISSN 0370-2693. 791, s. 403–408. doi: 10.1016/j.physletb.2019.03.013. Fulltekst i vitenarkiv
• Wilson, Joshua N.; Lebois, Matthieu; Qi, Liqiang; Amador-Celdran, Pedro; Bleuel, Darren L. & Briz, José A. [Vis alle 49 forfattere av denne artikkelen] (2018). Studies of fission fragment yields via high-resolution γ-ray spectroscopy. The European Physical Journal Conferences. ISSN 2101-6275. 169, s. 1–8. doi: 10.1051/epjconf/201816900030. Fulltekst i vitenarkiv
• Utsunomiya, Hiroaki; Renstrøm, Therese; Tveten, Gry Merete; Goriely, Stéphane; Katayama, Seitaro & Ari-Izumi, Takashi [Vis alle 22 forfattere av denne artikkelen] (2018). Photoneutron cross sections for Ni isotopes: Toward understanding (n, γ ) cross sections relevant to weak s-process nucleosynthesis. Physical Review C. ISSN 2469-9985. 98(5), s. 1–9. doi: 10.1103/PhysRevC.98.054619. Fulltekst i vitenarkiv Vis sammendrag

  Photoneutron cross sections were measured for 58Ni, 60Ni, 61Ni, and 64Ni at energies between the one-neutron and two-neutron thresholds using quasimonochromatic γ -ray beams produced in laser Compton scattering at the NewSUBARU synchrotron radiation facility. These photoneutron data are used to extract the γ -ray strength function above the neutron threshold, complementing the information obtained by the Oslo method below the threshold. We discuss radiative neutron-capture cross sections and the Maxwellian-averaged cross sections for Ni isotopes including 63Ni, a branching point nucleus along the weak s-process path. The cross sections are calculated with the experimentally constrained γ-ray strength functions from the Hartree-Fock-Bogolyubov plus quasiparticle–random-phase approximation based on the Gogny D1M interaction for both E1 and M1 components and supplemented with the M1 upbend.

• Guttormsen, Magne Sveen; Larsen, Ann-Cecilie; Midtbø, Jørgen E.; Crespo Campo, Lucia; Görgen, Andreas & Ingeberg, Vetle Wegner [Vis alle 11 forfattere av denne artikkelen] (2018). Gamma-widths, lifetimes and fluctuations in the nuclear quasi-continuum. The European Physical Journal Conferences. ISSN 2101-6275. 178(06001). doi: 10.1051/epjconf/201817806001. Fulltekst i vitenarkiv
• Brits, C.P.; Wiedeking, M.; Bello Garrote, Frank Leonel; Bleuel, D. L.; Giacoppo, F. & Görgen, Andreas [Vis alle 22 forfattere av denne artikkelen] (2017). Resonances in odd-odd 182Ta. The European Physical Journal Conferences. ISSN 2101-6275. 146. doi: 10.1051/epjconf/201714605012. Fulltekst i vitenarkiv
• Malatji, Kgashane L.; Kheswa, Bonginkosi Vincent; Wiedeking, M.; Bello Garrote, Frank Leonel; Brits, C.P. & Bleuel, D. L. [Vis alle 21 forfattere av denne artikkelen] (2017). Nuclear level densities and γ-ray strength functions of 180,181Ta and neutron capture cross sections. The European Physical Journal Conferences. ISSN 2101-6275. 146. doi: 10.1051/epjconf/201714601010. Fulltekst i vitenarkiv
• Larsen, Ann-Cecilie; Spyrou, Artemis; Liddick, Sean N.; Guttormsen, Magne Sveen; Ingeberg, Vetle Wegner & Siem, Sunniva [Vis alle 25 forfattere av denne artikkelen] (2017). Novel Techniques for Constraining Neutron-capture Rates relevant to Heavy-element Nucleosynthesis. Proceedings of Science (PoS). ISSN 1824-8039. INPC2016. doi: 10.22323/1.281.0360. Fulltekst i vitenarkiv
• Wilson, JN; Lebois, M; Qi, L; Amador-Celdran, P; Bleuel, D & Briz, JA [Vis alle 48 forfattere av denne artikkelen] (2017). Production and study of neutron-rich nuclei using the licorne directional neutron source. Acta Physica Polonica B. ISSN 0587-4254. 48(3), s. 395–401. doi: 10.5506/APhysPolB.48.395. Fulltekst i vitenarkiv
• Wilson, JN; Lebois, M; Qi, L; Amador-Celdran, P; Bleuel, D & Briz, JA [Vis alle 49 forfattere av denne artikkelen] (2017). Anomalies in the Charge Yields of Fission Fragments from the U (n,f) 238 Reaction. Physical Review Letters. ISSN 0031-9007. 118(22). doi: 10.1103/PhysRevLett.118.222501. Fulltekst i vitenarkiv
• Larsen, Ann-Cecilie; Guttormsen, Magne Sveen; Blasi, Nives; Bracco, Angela; Camera, Franco & Crespo Campo, Lucia [Vis alle 24 forfattere av denne artikkelen] (2017). Low-energy enhancement and fluctuations of γ-ray strength functions in 56,57Fe: test of the Brink–Axel hypothesis. Journal of Physics G: Nuclear and Particle Physics. ISSN 0954-3899. 44(6). doi: 10.1088/1361-6471/aa644a. Fulltekst i vitenarkiv
• Larsen, Ann-Cecilie; Spyrou, Artemisia; Liddick, Sean N.; Guttormsen, Magne Sveen; Ingeberg, Vetle Wegner & Siem, Sunniva [Vis alle 25 forfattere av denne artikkelen] (2016). Novel techniques for constraining neutron-capture rates relevant to heavy-element nucleosynthesis. Proceedings of Science (PoS). ISSN 1824-8039. 2016-September:360, s. 1–9. Fulltekst i vitenarkiv
• Ay, K.o.; Ozgur, Mustafa; Algin, Emel; Guttormsen, Magne Sveen; Bello Garrote, Frank Leonel & Crespo Campo, Lucia [Vis alle 20 forfattere av denne artikkelen] (2016). Nuclear level densities and gamma-ray strength functions of 145,149,151Nd isotopes. Journal of Physics: Conference Series (JPCS). ISSN 1742-6588. 766(012027). doi: 10.1088/1742-6596/766/1/012027.

Se alle arbeider i Cristin

• Ingeberg, Vetle Wegner (2019). Progress of the IS559 experiment.
• Ingeberg, Vetle Wegner; Siem, Sunniva; Wiedeking, M.; Abrahams, Kenzo John; Arnswald, K. & Bello Garrote, Frank Leonel [Vis alle 36 forfattere av denne artikkelen] (2019). Inverse-Oslo Method – a tool for expanding our understanding of the r-process.
• Ingeberg, Vetle Wegner (2018). Developing the Oslo SCintillator ARray (OSCAR). Vis sammendrag

  A new high efficiency scintillator array consisting of 30 large volume LaBr3(Ce) detectors are currently being developed at the Oslo Cyclotron Laboratory (OCL), University of Oslo. The first commissioning experiments was performed in December 2017 with 15 of the detectors installed. The array has been characterized and response functions have been extracted from in-beam particle-γ coincidences. The experimental response functions have been reproduced by Geant4 simulations modeling the full setup. The data acquisition system at OCL will be replaced by modern electronics from XIA in mid February, 2018.

• Ingeberg, Vetle Wegner (2018). The Inverse-Oslo method.
• Guttormsen, Magne Sveen; Larsen, Ann-Cecilie; Midtbø, Jørgen E.; Crespo Campo, Lucia; Görgen, Andreas & Ingeberg, Vetle Wegner [Vis alle 11 forfattere av denne artikkelen] (2017). Gamma-widths, lifetimes and fluctuations in the nuclear quasi-continuum.

Se alle arbeider i Cristin