Cross section measurement on {sup 139}La (gamma,gamma') below neutron separation energy

Journal Article · Tue Jun 01 04:00:00 EDT 2010 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3455936· OSTI ID:21362109

Makinaga, A ^[1]; Rusev, G ^[2]; Schwengner, R; Doenau, F; Beyer, R; Bemmerer, D; Erhard, M; Junghans, A R; Nair, C; Schilling, K D; Wagner, A ^[3]; Crespo, P ^[4]; Klug, J ^[5]

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1. Hokkaido University VBL, Kita 10-jo, Nishi 8-chome, Kita-ku, Sapporo, Hokkaido (Japan)
2. Department of Physics, Duke University, and Triangle Universities Nuclear Laboratory, Durham, North Carolina 27708 (United States)
3. Institut fuer Strahlenphysik, Forschungszentrum Dresden-Rossendorf, D-01314 Dresden (Germany)
4. LIP, Physics Department, University of Coimbra, 3004-516 Coimbra (Portugal)
5. Vattenfall Power, S-16216 Stockholm (Sweden)

The gamma-ray strength function is an important input quantity for the determination of the photoreaction rate and the neutron capture rate for astrophysics as well as for nuclear technologies. Recent studies show that extra gamma-ray strength near the neutron separation energy S{sub n}(pygmy resonance) affects the stellar reaction rate strongly. In this work, the photoabsorption cross section for {sup 139}La below S{sub n} was measured using bremsstrahlung produced at the electron accelerator ELBE of Eorschungszentrum Dresden-Rossendorf with an electron beam of 11.5 MeV kinetic energy. Experimental result of {sup 139}La is presented.

• OSTI ID: 21362109
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 1238; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ACCELERATORS
ASTROPHYSICS
BARYON REACTIONS
BEAMS
BINDING ENERGY
BREMSSTRAHLUNG
CROSS SECTIONS
ELECTROMAGNETIC RADIATION
ELECTRON BEAMS
ELECTRONS
ELECTROSTATIC ACCELERATORS
ELEMENTARY PARTICLES
ENERGY
ENERGY RANGE
FERMIONS
FUNCTIONS
GAMMA RADIATION
HADRON REACTIONS
INTERMEDIATE MASS NUCLEI
IONIZING RADIATIONS
ISOTOPES
KINETIC ENERGY
KINETICS
LANTHANUM 139
LANTHANUM 139 TARGET
LANTHANUM ISOTOPES
LEPTON BEAMS
LEPTONS
MEV RANGE
MEV RANGE 10-100
NEUTRON REACTIONS
NEUTRON SEPARATION ENERGY
NEUTRON SOURCES
NUCLEAR REACTIONS
NUCLEI
NUCLEON REACTIONS
ODD-EVEN NUCLEI
PARTICLE BEAMS
PARTICLE SOURCES
PHOSPHORS
PHOTONUCLEAR REACTIONS
PHYSICS
RADIATION SOURCES
RADIATIONS
RARE EARTH NUCLEI
REACTION KINETICS
STABLE ISOTOPES
STRENGTH FUNCTIONS
TARGETS