Published June 1, 2010 | Version v1
Journal article Metadata-only

Cross section measurement on 139La (γ,γ') below neutron separation energy

Creators

  • 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)

Description

The γ-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 γ-ray strength near the neutron separation energy Sn(pygmy resonance) affects the stellar reaction rate strongly. In this work, the photoabsorption cross section for 139La below Sn 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 139La is presented.

Additional details

Identifiers

DOI
10.1063/1.3455936;

Publishing Information

Journal Title
AIP Conference Proceedings
Journal Volume
1238
Journal Issue
1
Journal Page Range
p. 228-230
ISSN
0094-243X
CODEN
APCPCS

Conference

Title
7. Tours symposium on nuclear physics and astrophysics
Dates
16-20 Nov 2009
Place
Kobe (Japan)

INIS

Country of Publication
United States
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
41096660
Subject category
S73: NUCLEAR PHYSICS AND RADIATION PHYSICS;
Resource subtype / Literary indicator
Conference
Descriptors DEI
ASTROPHYSICS; BREMSSTRAHLUNG; CROSS SECTIONS; ELECTRON BEAMS; ELECTRONS; ELECTROSTATIC ACCELERATORS; GAMMA RADIATION; KINETIC ENERGY; LANTHANUM 139; LANTHANUM 139 TARGET; MEV RANGE 10-100; NEUTRON REACTIONS; NEUTRON SEPARATION ENERGY; NEUTRON SOURCES; PHOSPHORS; PHOTONUCLEAR REACTIONS; REACTION KINETICS; STRENGTH FUNCTIONS
Descriptors DEC
ACCELERATORS; BARYON REACTIONS; BEAMS; BINDING ENERGY; ELECTROMAGNETIC RADIATION; ELEMENTARY PARTICLES; ENERGY; ENERGY RANGE; FERMIONS; FUNCTIONS; HADRON REACTIONS; INTERMEDIATE MASS NUCLEI; IONIZING RADIATIONS; ISOTOPES; KINETICS; LANTHANUM ISOTOPES; LEPTON BEAMS; LEPTONS; MEV RANGE; NUCLEAR REACTIONS; NUCLEI; NUCLEON REACTIONS; ODD-EVEN NUCLEI; PARTICLE BEAMS; PARTICLE SOURCES; PHYSICS; RADIATION SOURCES; RADIATIONS; RARE EARTH NUCLEI; STABLE ISOTOPES; TARGETS

Optional Information

Notes
(c) 2010 American Institute of Physics