Double neutron capture in62Ni
| Autor: | A. Jungclaus, M. Trautmannsheimer, H. G. Börner, S. Michaelsen, K. P. Lieb, A. P. Williams, A. Harder |
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| Rok vydání: | 1992 |
| Předmět: |
Physics
Nuclear reaction Nuclear and High Energy Physics Isotope 010308 nuclear & particles physics Astrophysics::High Energy Astrophysical Phenomena 01 natural sciences Semiconductor detector Nuclear physics Neutron capture 0103 physical sciences Neutron cross section Nuclear fusion Neutron Atomic physics Nuclear Experiment 010306 general physics Fermi gas |
| Zdroj: | Zeitschrift f�r Physik A Hadrons and Nuclei. 343:7-14 |
| ISSN: | 1434-601X 0939-7922 |
| DOI: | 10.1007/bf01291590 |
| Popis: | The γ-radiation following single and double neutron capture in isotopically enriched62Ni was studied at the high flux reactor of the Institut Laue-Langevin, using a pair and Compton suppressed germanium detector. Measurements before and after 170 d of breeding were performed. The γ-ray fluxes through63Ni and64Ni are discussed; several new levels and spin-parity assignments were found. On the basis of the known discrete levels and the low-energy neutron resonances, level density parameters were determined within the Constant Temperature Fermi Gas model. The neutron binding energies were measured asBn (63Ni)=6837.92(18) keV andBn (64Ni)=9657.64(24) keV. The63Ni (n, γ) cross section for reactor neutrons was measured to be σ=20−2+5 b. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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