EPJ Web of Conferences
Volume 93, 2015CGS15 – Capture Gamma-Ray Spectroscopy and Related Topics
|Number of page(s)||6|
|Published online||28 May 2015|
First evidence of low energy enhancement in Ge isotopes
1 Department of Physics, University of Oslo, N-0316 Oslo, Norway
2 Department of Physics, Konan University, Okamoto 8-9-1, Higashinada, Kobe 658-8501, Japan
3 Extreme Light Infrastructure Nuclear Physics, str Atomistilor nr. 407, Bucharest-Magurele, P.O.BOX MG6, Romania
4 National Institute for Physics and Nuclear Engineering Horia Hulubei, str Atomistilor nr. 407, Bucharest-Magurele, P.O.BOX MG6, Romania
5 Faculty of Physics, University of Bucharest, Bucharest, Romania
6 Institut d’Astronomie et d’Astrophysique, ULB, Belgium
7 Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, California 94550-9234, US
8 Cyclotron Institute, Texas A&M University, College Station, Texas 77843, USA
9 iThemba LABS, P.O. Box 722, 7129 Somerset West, South Africa
10 Institute of Radiation Physics, Helmholtz-Zentrum Dresden-Rossendorf, 01328 Dresden, Germany
11 Research Center for Nuclear Physics, Osaka University, Suita, Osaka 567-0047, Japan
12 Institute of Nuclear Research of the Hungarian Academy of Sciences (MTA Atomki), Debrecen, Hungary
a e-mail: firstname.lastname@example.org
Published online: 28 May 2015
The γ-strength functions and level densities of 73,74Ge have been extracted from particle-γ coincidence data using the Oslo method. In addition the γ-strength function of 74Ge above the neutron separation threshold, Sn = 10.196 MeV has been extracted from photoneutron measurements. When combined, these two experiments give a γ-strength function covering the energy range of ∼1-13 MeV for 74Ge. This thorough investigation of 74Ge is a part of an international campaign to study the previously reported low energy enhancement in this mass region in the γ-strength function from ∼3MeV towards lower γ energies. The obtained data show that both 73,74Ge display an increase in strength at low γ energies.
© Owned by the authors, published by EDP Sciences, 2015
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