| Autor: |
Moody, K J, Gharibyan, N, Shaughnessy, D A, Grant, P M, Gostic, J M, Cerjan, C J, Yeamans, C B, Despotopulos, J D, Faye, S A |
| Předmět: |
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| Zdroj: |
Journal of Physics G: Nuclear & Particle Physics; Apr2020, Vol. 47 Issue 4, p1-48, 48p |
| Abstrakt: |
The neutron activation of gold is the basis of an implosion performance diagnostic at the National Ignition Facility at Lawrence Livermore National Laboratory. In support of this diagnostic, a series of γ-ray spectrometric measurements of the decay of 196Aum2 (Jπ = 12−) was performed to improve the currently accepted literature values of the nuclear data associated with its half-life, γ-ray energies, and γ-ray intensities. It was determined that 196Aum2 decays with a half-life of 9.603 h ± 0.23%. The relative intensities of the γ rays emitted during its decay were also measured, and an absolute decay branch of 0.3352 ± 2.9% was determined for the emission of the 188.2 keV photon, which arises from a nuclear transition whose multipolarity is predominantly M1. Properties of other products arising in the reaction of 197Au with fast neutrons were measured, as were selected production cross sections. The 196Aum2/196Aug isomer ratio measured in the 197Au(n, 2n) reaction at 14.1 MeV was found to be 0.0731 ± 2.6%. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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