Neutron capture and inelastic scattering cross sections for {sup 186}Os, {sup 187}Os, and {sup 189}Os and the Re-Os chronology

Journal Article · Wed May 21 00:00:00 EDT 2008 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.2943622· OSTI ID:21143505

Segawa, M ^[1]; Nagai, Y; Masaki, T; Temma, Y; Shima, T; Mishima, K ^[2]; Igashira, M ^[3]; Goriely, S ^[4]; Koning, A ^[5]; Hilaire, S ^[6]

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1. Quantum Beam Science Directorate, Japan Atomic Energy Agency, Tokai, Ibaraki 319-1195 (Japan)
2. Research Center for Nuclear Physics, Osaka University, Osaka 567-0047 (Japan)
3. Research Laboratory for Nuclear Reactors, Tokyo Institute of Technology, Tokyo 152-8550 (Japan)
4. Institut d'Astronomie et d'Astrophysique, Universite Libre de Bruxelles, Campus de la Plaine, CP226, 1050 Brussels (Belgium)
5. Nuclear Research and Consultancy Group, P.O. Box 25, NL-1755 ZG Petten (Netherlands)
6. CEA/DAM Ile-de-France, DPTA/Service de Physique Nucleaire, BP 12, 91680 Bruyeres-le-Chatel (France)

We measured the neutron capture cross sections of {sup 186,187,189}Os taking for the first time their pulse height spectra for neutrons between 5 and 90 keV by means of an anti-Compton NaI(Tl) spectrometer. The neutron inelastic scattering cross section for {sup 187}Os as well as the neutron elastic scattering cross sections for {sup 186,187}Os were also observed with use of {sup 6}Li-glass scintillation detectors with a small systematic uncertainty.

• OSTI ID: 21143505
• Journal Information: AIP Conference Proceedings, Vol. 1016, Issue 1; Conference: 10. international symposium on origin of matter and evolution of galaxies: From the dawn of Universe to the formation of solar system, Sapporo (Japan), 4-7 Dec 2007; Other Information: DOI: 10.1063/1.2943622; (c) 2008 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
CAPTURE
CROSS SECTIONS
ELASTIC SCATTERING
INELASTIC SCATTERING
ISOTOPE DATING
KEV RANGE
LITHIUM 6
NAI DETECTORS
NEUTRON REACTIONS
NEUTRON SPECTRA
NEUTRONS
OSMIUM 186
OSMIUM 186 TARGET
OSMIUM 187
OSMIUM 187 TARGET
OSMIUM 189
SCINTILLATION COUNTERS