Vetle Wegner Ingeberg

• Zeiser, Fabio; Tveten, Gry Merete; Bello Garrote, Frank Leonel; Guttormsen, Magne Sveen; Larsen, Ann-Cecilie; Ingeberg, Vetle Wegner; Görgen, Andreas & Siem, Sunniva (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: https://doi.org/10.1016/j.nima.2020.164678
• Ingeberg, Vetle Wegner; Siem, Sunniva; Wiedeking, Mathis; Sieja, Kamila; Bleuel, D.l.; Brits, C.P.; Bucher, T. D.; Dinoko, TS; Easton, JL; Görgen, Andreas; Guttormsen, Magne Sveen; Jones, P.; Kheswa, Bonginkosi Vincent; Khumalo, NA; Larsen, Ann-Cecilie; Lawrie, EA; Lawrie, JJ; Majola, SNT; Negi, Dinesh; Noncolela, SP; Papka, P; Sahin, Eda; Schwengner, Ronald; Tveten, Gry Merete; Zeiser, Fabio & Zikhali, Bonginkosi Richard (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 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; Bleuel, D. L.; Giacoppo, Francesca; Görgen, Andreas; Guttormsen, Magne Sveen; Hadynska-Klek, Katarzyna; Hagen, Trine Wiborg; Hilaire, S.; Ingeberg, Vetle Wegner; Jia, H.; Klintefjord, Malin; Larsen, Ann-Cecilie; Majola, SNT; Papka, P.; Péru, S.; Qi, B.; Renstrøm, Therese; Rose, Sunniva Johanne; Sahin, Eda; Siem, Sunniva; Tveten, Gry Merete & Zeiser, Fabio (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.
• Liddick, Sean N.; Larsen, Ann-Cecilie; Guttormsen, Magne Sveen; Spyrou, Artemis; Crider, Benjamin P.; Naqvi, Farheen; Midtbø, Jørgen E.; Bello Garrote, Frank Leonel; Bleuel, Darren L.; Crespo Campo, Lucia; Couture, Aaron J.; Dombos, Alexander C.; Giacoppo, Francesca; Görgen, Andreas; Hadynska-Klek, Katarzyna; Hagen, Trine Wiborg; Ingeberg, Vetle Wegner; Kheswa, Bonginkosi Vincent; Lewis, Rebecca; Mosby, Shea M.; Perdikakis, Georgios; Prokop, Christopher J.; Quinn, Stephen; Renstrøm, Therese; Rose, Sunniva Johanne; Sahin, Eda; Siem, Sunniva; Tveten, Gry Merete; Wiedeking, Mathis & Zeiser, Fabio (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.
• Malatji, Kgashane Leroy; Wiedeking, Mathis; Goriely, Stephane; Brits, Christiaan Petrus; Kheswa, Bonginkosi Vincent; Bello Garrote, Frank Leonel; Bleuel, Darren L.; Giacoppo, Francesca; Görgen, Andreas; Guttormsen, Magne Sveen; Hadynska-Klek, Katarzyna; Hagen, Trine Wiborg; Ingeberg, Vetle Wegner; Klintefjord, Malin; Larsen, Ann-Cecilie; Papka, P.; Renstrøm, Therese; Sahin, Eda; Siem, Sunniva; Siess, L.; Tveten, Gry Merete & Zeiser, Fabio (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.
• Utsunomiya, Hiroaki; Renstrøm, Therese; Tveten, Gry Merete; Goriely, Stéphane; Ari-izumi, Takashi; Ingeberg, Vetle Wegner; Kheswa, Bonginkosi Vincent; Lui, Yiu-Wing; Miyamoto, Shyuji; Hilaire, Stéphane; Péru, Sophie & Koning, Arjan J. (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.
• Zeiser, Fabio; Tveten, Gry Merete; Potel, Gregory; Larsen, Ann-Cecilie; Guttormsen, Magne Sveen; Laplace, Thibault A.; Siem, Sunniva; Bleuel, Darren L.; Goldblum, Bethany L.; Bernstein, Lee A.; Bello Garrote, Frank Leonel; Crespo Campo, Lucia; Eriksen, Tomas Kvalheim; Görgen, Andreas; Hadynska-Klek, Katarzyna; Ingeberg, Vetle Wegner; Midtbø, Jørgen E.; Sahin, Eda; Tornyi, Tamas Gabor; Voinov, Alexander; Wiedeking, Mathis & Wilson, Jonathan (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.
• Guttormsen, Magne Sveen; Larsen, Ann-Cecilie; Midtbø, Jørgen E.; Crespo Campo, Lucia; Görgen, Andreas; Ingeberg, Vetle Wegner; Renstrøm, Therese; Siem, Sunniva; Tveten, Gry Merete; Zeiser, Fabio & Kirsch, Leo (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.
• Utsunomiya, Hiroaki; Renstrøm, Therese; Tveten, Gry Merete; Goriely, Stéphane; Katayama, Seitaro; Ari-Izumi, Takashi; Takenaka, Daiki; Symochko, Dmytro; Kheswa, Bonginkosi Vincent; Ingeberg, Vetle Wegner; Glodariu, Tudor; Lui, Yiu-Wing; Miyamoto, Shyuji; Larsen, Ann-Cecilie; Midtbø, Jørgen E.; Görgen, Andreas; Siem, Sunniva; Crespo Campo, Lucia; Guttormsen, Magne Sveen; Hilaire, Stéphane; Péru, Sophie & Koning, Arjan J. (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.

• Wilson, Joshua N.; Lebois, Matthieu; Qi, Liqiang; Amador-Celdran, Pedro; Bleuel, Darren L.; Briz, José A.; Carroll, Raymond J.; Catford, Wilton; De Witte, Hans; Doherty, Daniel T.; Eloirdi, Rachel; Georgiev, Georgi; Gottardo, Andrea; Goasduff, Alain; Hadynska-Klek, Katarzyna; Hauschild, Karl; Hess, Herbert; Ingeberg, Vetle Wegner; Konstantinopoulos, Theodore; Ljungvall, Joa; Lopez-Martens, Araceli; Lorusso, Giuseppe; Lozeva, Radomira L.; Lutter, Rudolf; Marini, Paola; Matéa, Iolanda; Materna, Thomas; Mathieu, Ludovic; Oberstedt, Andreas; Oberstedt, Stephan; Panebianco, Stefano; Podolyák, Zsolt; Porta, Alessio; Regan, Patrick Henry; Reiter, Peter; Rezynkina, Kseniia; Rose, Sunniva Johanne; Sahin, Eda; Seidlitz, Michael; Sérot, Olivier; Shearman, Robert; Siebeck, Burkhard; Siem, Sunniva; Smith, Gavin; Tveten, Gry Merete; Verney, David; Warr, Nigel V.; Zeiser, Fabio & Zielińska, Magdalena (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.
• Brits, C.P.; Wiedeking, M.; Bello Garrote, Frank Leonel; Bleuel, D. L.; Giacoppo, F.; Görgen, Andreas; Guttormsen, Magne Sveen; Hadynska-Klek, Katarzyna; Hagen, Trine Wiborg; Ingeberg, Vetle Wegner; Kheswa, Bonginkosi Vincent; Klintefjord, Malin; Larsen, Ann-Cecilie; Malatji, Kgashane L.; Nyhus, Hilde-Therese; Papka, P; Renstrøm, Therese; Rose, Sunniva Johanne; Sahin, Eda; Siem, Sunniva; Tveten, Gry Merete & Zeiser, Fabio (2017). Resonances in odd-odd 182Ta. The European Physical Journal Conferences.  ISSN 2101-6275.  146 . doi: 10.1051/epjconf/201714605012 Fulltekst i vitenarkiv.
• Larsen, Ann-Cecilie; Guttormsen, Magne Sveen; Blasi, Nives; Bracco, Angela; Camera, Franco; Crespo Campo, Lucia; Eriksen, Tomas Kvalheim; Görgen, Andreas; Hagen, Trine Wiborg; Ingeberg, Vetle Wegner; Kheswa, Bonginkosi Vincent; Leoni, Silvia; Midtbø, Jørgen Eriksson; Million, Bénédicte; Nyhus, Hilde-Therese; Renstrøm, Therese; Rose, Sunniva Johanne; Ruud, Inger Eli; Siem, Sunniva; Tornyi, Tamas Gabor; Tveten, Gry Merete; Voinov, Alexander; Wiedeking, Mathis & Zeiser, Fabio (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, Artemis; Liddick, Sean N.; Guttormsen, Magne Sveen; Ingeberg, Vetle Wegner; Siem, Sunniva; Wiedeking, Mathis; Crider, Benjamin P.; Naqvi, Farheen; Perdikakis, George; Mumpower, Matthew R.; Surman, Rebecca A.; Tveten, Gry Merete; Bleuel, Darren L.; Couture, Aaron J.; Crespo Campo, Lucia; Dombos, Alexander C.; Görgen, Andreas; Lewis, Rebecca; Mosby, Shea; Nikas, Stylianos; Prokop, Christopher; Quinn, Stephen; Renstrøm, Therese & Rubio, Berta (2017). Novel Techniques for Constraining Neutron-capture Rates relevant to Heavy-element Nucleosynthesis. PoS - Proceedings of Science.  ISSN 1824-8039.  INPC2016 . doi: 10.22323/1.281.0360 Fulltekst i vitenarkiv.
• Malatji, Kgashane L.; Kheswa, Bonginkosi Vincent; Wiedeking, M.; Bello Garrote, Frank Leonel; Brits, C.P.; Bleuel, D. L.; Giacoppo, Francesca; Görgen, Andreas; Guttormsen, Magne Sveen; Hadynska-Klek, Katarzyna; Hagen, Trine Wiborg; Ingeberg, Vetle Wegner; Klintefjord, Malin; Larsen, Ann-Cecilie; Nyhus, Hilde-Therese; Renstrøm, Therese; Rose, Sunniva Johanne; Sahin, Eda; Siem, Sunniva; Tveten, Gry Merete & Zeiser, Fabio (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.
• Wilson, JN; Lebois, M; Qi, L; Amador-Celdran, P; Bleuel, D; Briz, JA; Carroll, R; Catford, W; De Witte, H; Doherty, D; Eloirdi, R; Georgiev, G; Gottardo, A; Goasduff, A; Hadynska-Klek, K; Hauschild, K; Hess, M; Ingeberg, Vetle Wegner; Konstantinopoulos, T; Ljungvall, J; Lopez-Martens, A; Lorusso, G; Lozeva, R; Lutter, R; Marini, P; Matea, I; Materna, T; Mathieu, L; Oberstedt, A; Oberstedt, S; Panebianco, S; Podolyak, Z; Porta, A; Regan, PH; Reiter, P; Rezynkina, K; Rose, Sunniva Johanne; Sahin, Eda; Seidlitz, M; Shearman, R; Siebeck, B; Siem, Sunniva; Smith, AG; Tveten, Gry Merete; Verney, D; Warr, N; Zeiser, Fabio & Zielinska, M (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; Carroll, R; Catford, W; De Witte, H; Doherty, DT; Eloirdi, R; Georgiev, G; Gottardo, A; Goasduff, A; Hadynska-Klek, K; Hauschild, K; Hess, H; Ingeberg, Vetle Wegner; Konstantinopoulos, T; Ljungvall, J; Lopez-Martens, A; Lorusso, G; Lozeva, R; Lutter, R; Marini, P; Matea, I; Materna, T; Mathieu, L; Oberstedt, A; Oberstedt, S; Panebianco, S; Podolyak, Zs; Porta, A; Regan, PH; Reiter, P; Rezynkina, K; Rose, Sunniva Johanne; Sahin, Eda; Seidlitz, M; Serot, O; Shearman, R; Siebeck, B; Siem, Sunniva; Smith, AG; Tveten, Gry Merete; Verney, D; Warr, N; Zeiser, Fabio & Zielinska, M (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.
• Ay, K.o.; Ozgur, Mustafa; Algin, Emel; Guttormsen, Magne Sveen; Bello Garrote, Frank Leonel; Crespo Campo, Lucia; Görgen, Andreas; Hagen, Trine Wiborg; Ingeberg, Vetle Wegner; Kheswa, Bonginkosi Vincent; Klintefjord, Malin; Larsen, Ann-Cecilie; Midtbø, Jørgen Eriksson; Modamio, Victor Høybjør; Renstrøm, Therese; Rose, Sunniva Johanne; Sahin, Eda; Siem, Sunniva; Tveten, Gry Merete & Zeiser, Fabio (2016). Nuclear level densities and gamma-ray strength functions of 145,149,151Nd isotopes. Journal of Physics: Conference Series.  ISSN 1742-6588.  766(012027) . doi: 10.1088/1742-6596/766/1/012027
• Larsen, Ann-Cecilie; Spyrou, Artemisia; Liddick, Sean N.; Guttormsen, Magne Sveen; Ingeberg, Vetle Wegner; Siem, Sunniva; Wiedeking, Mathis; Crider, Benjamin P.; Naqvi, Farheen; Perdikakis, Georgios; Mumpower, Matthew R.; Surman, Rebecca A.; Tveten, Gry Merete; Bleuel, Darren L.; Couture, Aaron J.; Crespo Campo, Lucia; Dombos, Alexander C.; Görgen, Andreas; Lewis, Raymond A.; Mosby, Shea M.; Nikas, Stylianos; Prokop, Christopher J.; Quinn, Simon J.; Renstrøm, Therese & Rubio, Berta (2016). Novel techniques for constraining neutron-capture rates relevant to heavy-element nucleosynthesis. PoS - Proceedings of Science.  ISSN 1824-8039.  2016-September:360, s 1- 9 Fulltekst i vitenarkiv.

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• 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; Berry, Tom; Bleuel, Darren L.; Cederkäll, J.; Christoffersen, Tuva L.; Cox, D.M.; Crespo Campo, Lucia; De Witte, H.; Gaffney, LP; Görgen, Andreas; Henrich, C.; Illana Sison, A.; Jones, Peter; Kheswa, Bonginkosi Vincent; Kroll, T; Majola, Siyabonga N.T.; Malatji, Kgashane Leroy; Nogwanya, Thembalethu; Ojala, J.; Pekarinen, J.; Rainovski, G; Reiter, P; Rosiak, D.; Von Schmid, M.; Seidlitz, M.; Siebeck, B.; Snäll, Jacob; Sowazi, Khanyisa; Tveten, Gry Merete; Warr, N. & Zeiser, Fabio (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. Vis sammendrag

  The Inverse-Oslo method

• Guttormsen, Magne Sveen; Larsen, Ann-Cecilie; Midtbø, Jørgen E.; Crespo Campo, Lucia; Görgen, Andreas; Ingeberg, Vetle Wegner; Renstrøm, Therese; Siem, Sunniva; Tveten, Gry Merete; Zeiser, Fabio & Kirsch, Leo (2017). Gamma-widths, lifetimes and fluctuations in the nuclear quasi-continuum.

Se alle arbeider i Cristin