Zobrazeno 1 - 10
of 1 014
pro vyhledávání: '"Guttormsen M."'
Autor:
Markova, M., Larsen, A. C., Tveten, G. M., von Neumann-Cosel, P., Eriksen, T. K., Garrote, F. L. Bello, Campo, L. Crespo, Giacoppo, F., Görgen, A., Guttormsen, M., Hadynska-Klek, K., Klintefjord, M., Renstrøm, T., Sahin, E., Siem, S., Tornyi, T. G.
Publikováno v:
Phys. Rev. C 108, 014315 (2023)
The $^{111,112,113}$Sn isotopes have been studied with ($p,d \gamma$), ($p,p^{\prime} \gamma$), and ($d,p \gamma$) reactions to extract the nuclear level densities (NLDs) and $\gamma$-ray strength functions (GSFs) of these nuclei below the neutron se
Externí odkaz:
http://arxiv.org/abs/2311.08865
Autor:
Markova, M., Larsen, A. C., von Neumann-Cosel, P., Litvinova, E., Choplin, A., Goriely, S., Martinet, S., Siess, L., Guttormsen, M., Pogliano, F., Siem, S.
The $\gamma$-ray strength functions (GSF) and nuclear level densities (NLD) below the neutron threshold have been extracted for $^{111-113,116-122,124}$Sn from particle-$\gamma$ coincidence data with the Oslo method. The evolution of bulk properties
Externí odkaz:
http://arxiv.org/abs/2311.08864
Autor:
Gjestvang D., Siem S., Zeiser F., Randrup J., Vogt R., Bello-Garrote F., Bernstein L.A., Bleuel D.L., Guttormsen M., Görgen A., Larsen A.C., Malatji K.L., Matthews E., Modamio V., Oberstedt A., Oberstedt S., Tornyi T., Tveten G., Voyles A., Wilson J.
Publikováno v:
EPJ Web of Conferences, Vol 256, p 00005 (2021)
The study of prompt fission γ rays (PFGs) is crucial for understanding the energy and angular momentum distribution in fission, and over the last decade there has been an revived interest in this aspect of fission. We present the new experimental se
Externí odkaz:
https://doaj.org/article/42185094c7e7433a90ec55a6db4306c3
Autor:
Larsen, A. C., Tveten, G. M., Renstrøm, T., Utsunomiya, H., Algin, E., Ari-izumi, T., Ay, K. O., Garrote, F. L. Bello, Campo, L. Crespo, Furmyr, F., Goriely, S., Görgen, A., Guttormsen, M., Ingeberg, V. W., Kheswa, B. V., Kullmann, I. K. B., Laplace, T., Lima, E., Markova, M., Midtbø, J. E., Miyamoto, S., Mjøs, A. H., Modamio, V., Ozgur, M., Pogliano, F., Riemer-Sørensen, S., Sahin, E., Shen, S., Siem, S., Spyrou, A., Wiedeking, M.
Publikováno v:
Phys. Rev. C 108, 025804 (2023)
In this work, we present new data on the $^{182,183,184}$W($\gamma,n$) cross sections, utilizing a quasi-monochromatic photon beam produced at the NewSUBARU synchrotron radiation facility. Further, we have extracted the nuclear level density and $\ga
Externí odkaz:
http://arxiv.org/abs/2301.13301
Autor:
Markova, M., Larsen, A. C., von Neumann-Cosel, P., Bassauer, S., Görgen, A., Guttormsen, M., Garrote, F. L. Bello, Berg, H. C., Bjørøen, M. M., Eriksen, T. K., Gjestvang, D., Isaak, J., Mbabane, M., Paulsen, W., Pedersen, L. G., Pettersen, N. I. J., Richter, A., Sahin, E., Scholz, P., Siem, S., Tveten, G. M., Valsdottir, V. M., Wiedeking, M.
Publikováno v:
Phys. Rev. C 106, 034322 (2022)
Nuclear level densities (NLDs) and $\gamma$-ray strength functions (GSFs) of $^{120,124}$Sn have been extracted with the Oslo method from proton-$\gamma$ coincidences in the ($p,p^{\prime}\gamma)$ reaction. The functional forms of the GSFs and NLDs h
Externí odkaz:
http://arxiv.org/abs/2301.05319
Autor:
Guttormsen M., Larsen A. C., Midtbø J. E., Crespo Campo L., Görgen A., Ingeberg V. W., Renstrøm T., Siem S., Tveten G. M., Zeiser F., Kirsch L. E.
Publikováno v:
EPJ Web of Conferences, Vol 178, p 06001 (2018)
Statistical γ-decay from highly excited states is determined by the nuclear level density (NLD) and the γ-ray strength function (γSF). These average quantities have been measured for several nuclei using the Oslo method. For the first time, we exp
Externí odkaz:
https://doaj.org/article/0bdde19b67014b94801d58bfe1974922
Autor:
Jurado B., Marini P., Mathieu L., Aiche M., Czajkowski S., Tsekhanovich I., Audouin L., Boutoux G., Denis-Petit D., Guttormsen M., Kessedjian G., Lebois M., Méot V., Oberstedt A., Oberstedt S., Roig O., Sérot O., Tassan-Got L., Wilson J.N.
Publikováno v:
EPJ Web of Conferences, Vol 146, p 11006 (2017)
We present the results of two experiments where we have measured for the first time simultaneously the fission and gamma-decay probabilities induced by different surrogate reactions. In particular, we have investigated the 238U(d,p), 238U(3He,t) and
Externí odkaz:
https://doaj.org/article/47900c8223ef4deba877c9908627faeb
Autor:
Brits C.P., Wiedeking M., Bello Garrote F.L., Bleuel D.L., Giacoppo F., Görgen A., Guttormsen M., Hadynska-Klek K., Hagen T.W., Ingeberg V.W., Kheswa B.V., Klintefjord M., Larsen A.C., Malatji K.L., Nyhus H.T., Papka P., Renstrøm T., Rose S., Sahin E., Siem S., Tveten G.M., Zeiser F.
Publikováno v:
EPJ Web of Conferences, Vol 146, p 05012 (2017)
Enhanced γ-decay on the tail of the giant electric dipole resonance, such as the scissors or pygmy resonances, can have significant impact on (n,γ) reaction rates. These rates are important input for modeling processes that take place in astrophysi
Externí odkaz:
https://doaj.org/article/3876825a988c4dd498f5b73de558754b
Nuclear level densities and γ-ray strength functions of 180,181Ta and neutron capture cross sections
Autor:
Malatji K.L., Kheswa B.V., Wiedeking M., Bello Garrote F.L., Brits C.P., Bleuel D.L., Giacoppo F., Görgen A., Guttormsen M., Hadynska-Klek K., Hagen T.W., Ingeberg V.W., Klintefjord M., Larsen A.C., Nyhus H.T., Renstrøm T., Rose S., Sahin E., Siem S., Tveten G.M., Zeiser F.
Publikováno v:
EPJ Web of Conferences, Vol 146, p 01010 (2017)
The γ-ray strength functions and nuclear level densities in the quasi-continuum of 180,181Ta are extracted from particle-γ coincidence events with the Oslo Method, below the Sn. The data were used as input in the TALYS reaction code for calculation
Externí odkaz:
https://doaj.org/article/ddfaf9bc3874449bb45c027bca100312
Autor:
Wiedeking M., Bernstein L.A., Bleuel D.L., Brits C.P., Sowazi K., Görgen A., Goldblum B.L., Guttormsen M., Kheswa B.V., Larsen A.C., Majola S.N.T., Malatji K.L., Negi D., Nogwanya T., Siem S., Zikhali B.R.
Publikováno v:
EPJ Web of Conferences, Vol 146, p 05006 (2017)
A program to study the γ-ray decay from the region of high-level density has been established at iThemba LABS, where a high-resolution gamma-ray detector array is used in conjunction with silicon particle-telescopes. Results from two recent projects
Externí odkaz:
https://doaj.org/article/0e4ed0f1991d4ac2b8d39ee281e5ab97