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HK: Fachverband Physik der Hadronen und Kerne

HK 17: Structure and Dynamics of Nuclei III

HK 17.3: Vortrag

Dienstag, 31. März 2020, 17:45–18:00, J-HS E

Precise determination of the (γ,xn) cross sections for Sn isotopes — •Dmytro Symochko¹, Patrick van Beek¹, Takashi Ari-izumi², Thomas Aumann¹, Martin Baumann¹, Sergey Belyshev³, Frank Leonel Bello Garrote⁴, Tomas K. Eriksen⁴, Vetle W. Ingeberg⁴, Ioana Gheorghe⁵, Philipp Kuchenbrod¹, Yiu-Wing Lui⁶, Shuji Miyamoto⁷, Wanja Paulsen⁴, Line G. Pedersen⁴, Fardous Reaz⁴, Heiko Scheit¹, and Hiroaki Utsunomiya² — ¹Technische Universität Darmstadt, Germany — ²Department of Physics, Konan University, Japan — ³Lomonosov Moscow State University, Skobeltsyn Institute of Nuclear Physics — ⁴Department of Physics, University of Oslo, Norway — ⁵NP, "Horia Hulubei" National Institute for Physics and Nuclear Engineering (IFIN HH), Romania — ⁶Cyclotron Institute, Texas A&M University — ⁷Laboratory of Advanced Science and Technology for Industry, University of Hyogo

We performed measurements of the partial photoneutron cross-sections for ^{112, 116, 120,124}Sn isotopes in the energy range up to 4-neutron thresholds. The experiment utilized a quasi-monochromatic gamma-ray beam produced in the laser Compton back-scattering at the NewSubaru synchrotron radiation facility. A novel flat-efficiency neutron detector based on ³He counters was used to detect the emitted neutrons and allowed the analysis with direct multiplicity sorting.

Details of the experiment and some preliminary results will be presented.

Supported by HMWK (LOEWE centre "Nuclear Photonics") and DFG (SFB1245).