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Neutron capture studies taking place at the pulsed neutron facility are presented. These investigations are of two types: first, the total neutron capture cross section is measured with high resolution in the keV region for isotopes which are particularly interesting for the study of s-process nucleosynthesis. From the obtained resonance parameters and/or capture areas, one can derive the stellar capture rate as a function of the temperature kT. Results have recently been obtained for the bottlenecks (138)Ba and (208)Pb, and for the s-only isotope (136)Ba.
A second type of experiment consists of measuring with Ge-detectors primary and secondary gamma-rays from neutron capture in single resonances in an effort to derive their spins and parities. These values are important for the interpretation of the results of parity-non-conservation measurements. Results have just been obtained for the isotope (109)Ag.

Additional information

Authors: CORVI F, JRC Geel (BE);ATHANASSOPULOS K, JRC Geel (BE);MUTTI P, JRC Geel (BE);ZANINI L, JRC Geel (BE);BEER H, Forschungszentrum Karlsruhe GmbH (DE);POSTMA H, Delft University of Technology, Department of Applied Physics (NL)
Bibliographic Reference: Paper presented: 14th international Conference on the Accelerators in Research and Industry, Denton (US), November 6-9, 1996
Availability: Available from (1) as Paper EN 40115 ORA
Record Number: 199611468 / Last updated on: 1997-01-16
Original language: en
Available languages: en