Investigation of photoneutron reactions on {sup 192}Os and {sup 191,193}Ir at energies of relevance for the astrophysical p process

Journal Article · Fri May 15 00:00:00 EDT 2009 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PHYSREVC.79.055807· OSTI ID:21286985

Hasper, J; Zilges, A ^[1]; Galaviz, D ^[2]; Mueller, S; Sauerwein, A; Savran, D; Schnorrenberger, L; Sonnabend, K ^[3]

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1. Institut fuer Kernphysik, Universitaet zu Koeln, Zuelpicher Strasse 77, D-50937 Koeln (Germany)
2. Centro de Fisica Nuclear da Universidade de Lisboa, Av. Prof. Gama Pinto 2, PT-1649-003 Lisbon (Portugal)
3. Institut fuer Kernphysik, Technische Universitaet Darmstadt, Schlossgartenstrasse 9, D-64289 Darmstadt (Germany)

We have investigated the photoneutron reactions on the isotopes {sup 192}Os and {sup 191,193}Ir for astrophysically relevant photon energies just above the neutron separation energy. The experiments were performed using the photoactivation technique at the superconducting Darmstadt linear electron accelerator (S-DALINAC). The measurements extend the existing experimental database on photoneutron reactions in this mass region and serve as an important test for the state-of-the-art statistical model calculations commonly used for the prediction of stellar reaction rates.

• OSTI ID: 21286985
• Journal Information: Physical Review. C, Nuclear Physics, Vol. 79, Issue 5; Other Information: DOI: 10.1103/PhysRevC.79.055807; (c) 2009 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2813
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ACCELERATORS
ASTROPHYSICS
COMPUTERIZED SIMULATION
ELECTRONS
FORECASTING
IRIDIUM 191
IRIDIUM 193
MASS
NEUTRON SEPARATION ENERGY
NUCLEAR REACTIONS
OSMIUM 192
PHOTONEUTRONS
PHOTONS
REACTION KINETICS
STATISTICAL MODELS