Photon scattering experiment on {sup 139}La below neutron separation energy at ELBE

Journal Article · Mon May 04 04:00:00 EDT 2009 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3141664· OSTI ID:21304792

Makinaga, A ^[1]; Rusev, G ^[2]; Schwengner, R; Junghans, A R; Wagner, A ^[2]

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1. Department of Physics, Konan University, Okamoto 8-9-1, Higashinada, Kobe 658-8501 (Japan)
2. Institute fur Strahlenphysik, Forschungszentrum Dresden-Rossendorf, Postfach 510119, D-01314 Dresden (Germany)

Gamma strength function is the important input parameter to determine the photodisintegration rate and neutron capture rate for astrophysics and nuclear technologies. To test the model calculation, photon-scattering cross sections were measured for {sup 139}La up to the neutron separation energy with bremsstrahlung at an electron kinetic energy of 11.5 MeV. Scattered photons were measured with four 100% HPGe detectors, and {sup 11}B is used to determine the {gamma} flux. The experimental data was analyzed with statistical methods to obtain the intensities of the ground-state transitions and their branching ratios. The present {sup 139}La photon scattering cross sections are combined with {sup 139}La photoneutron cross sections.

• OSTI ID: 21304792
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 1120; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BORON 11
BRANCHING RATIO
BREMSSTRAHLUNG
CROSS SECTIONS
ENERGY-LEVEL TRANSITIONS
GAMMA RADIATION
GIANT RESONANCE
GROUND STATES
HIGH-PURITY GE DETECTORS
LANTHANUM 139
LANTHANUM 139 TARGET
MEV RANGE
NEUTRON SEPARATION ENERGY
NUCLEOSYNTHESIS
PHOTONS
PHOTONUCLEAR REACTIONS
SCATTERING
STRENGTH FUNCTIONS