Photoactivation experiment on {sup 197}Au and its implications for the dipole strength in heavy nuclei

Journal Article · Sat Nov 15 04:00:00 EST 2008 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PHYSREVC.78.055802· OSTI ID:21199396

Nair, C; Erhard, M; Junghans, A R; Bemmerer, D; Beyer, R; Klug, J; Kosev, K; Rusev, G; Schilling, K D; Schwengner, R; Wagner, A ^[1]; Grosse, E ^[1]

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1. Institut fuer Strahlenphysik, Forschungszentrum Dresden-Rossendorf, D-01314 Dresden (Germany)

The {sup 197}Au({gamma},n) reaction is used as an activation standard for photodisintegration studies on astrophysically relevant nuclei. At the bremsstrahlung facility of the superconducting electron accelerator ELBE (Electron Linear accelerator of high Brilliance and low Emittance) of Forschungszentrum Dresden-Rossendorf, photoactivation measurements on {sup 197}Au have been performed with bremsstrahlung endpoint energies from 8.0 to 15.5 MeV. The measured activation yield is compared with previous experiments as well as with calculations using Hauser-Feshbach statistical models. It is shown that the experimental data are best described by a two-Lorentzian parametrization with taking the axial deformation of {sup 197}Au into account. The experimental {sup 197}Au({gamma},n) reaction yield measured at ELBE via the photoactivation method is found to be consistent with previous experimental data using photon scattering or neutron detection methods.

• OSTI ID: 21199396
• Journal Information: Physical Review. C, Nuclear Physics, Journal Name: Physical Review. C, Nuclear Physics Journal Issue: 5 Vol. 78; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ASTROPHYSICS
BREMSSTRAHLUNG
DEFORMATION
DIPOLES
ELECTRONS
GAMMA RADIATION
GOLD 197 TARGET
LINEAR ACCELERATORS
MEV RANGE
NEUTRON DETECTION
NEUTRON EMISSION
NEUTRON REACTIONS
PHOTONS
PHOTONUCLEAR REACTIONS
SCATTERING
STATISTICAL MODELS