Neutron resonances in 133Cs
| Autor: | Yutaka Nakajima, Yuuki Kawarasaki, Masayoshi Sugimoto, Makio Ohkubo, Motoharu Mizumoto |
|---|---|
| Rok vydání: | 1990 |
| Předmět: |
Physics
Bonner sphere Astrophysics::High Energy Astrophysical Phenomena Nuclear Theory Neutron stimulated emission computed tomography Resonance Neutron transmission Nuclear physics Neutron capture Nuclear Energy and Engineering Wigner distribution function Neutron Atomic physics Nuclear Experiment Shape analysis (digital geometry) |
| Zdroj: | Annals of Nuclear Energy. 17:569-577 |
| ISSN: | 0306-4549 |
| Popis: | Neutron capture and neutron transmission measurements on 133Cs were made to obtain neutron resonance parameters. Neutron capture areas up to 2 keV and neutron widths up to 5.9 keV for each resonance were derived. Below 100 eV five neutron radiative capture widths were obtained from the shape analysis of the transmission data. The following average s-wave resonance parameters were obtained: S0 = (0.77 ± 0.09) × 10−4, D = 22.4 ± 1.5 eV, \qGγ = 119 ± 3 meV. The distribution of the level spacings is consistent with the two-population Wigner distribution predicted theoretically. The statistic Δ3 is in good agreement with the value which Dyson and Mehta derived by using the orthogonal ensemble. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|