Thermal neutron capture cross-section and resonance integral measurements of 186W(n,γ)187W reaction using the thermal column neutron source at the Dalat research reactor
The thermal neutron radiative capture cross-section (σ0) and the resonance integral (I0) of the reaction 186W (n,γ)187W were measured by the thin foil activation method using the well thermalized neutron source at the graphite thermal column facility of the Dalat research reactor. The activities o...
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| Định dạng: | Journal article |
| Ngôn ngữ: | English |
| Được phát hành: |
Elsevier
2023
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| Những chủ đề: | |
| Truy cập trực tuyến: | https://scholar.dlu.edu.vn/handle/123456789/2984 |
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| Thư viện lưu trữ: | Thư viện Trường Đại học Đà Lạt |
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| Tóm tắt: | The thermal neutron radiative capture cross-section (σ0) and the resonance integral (I0) of the reaction 186W
(n,γ)187W were measured by the thin foil activation method using the well thermalized neutron source at the
graphite thermal column facility of the Dalat research reactor. The activities of the irradiated target and monitor
samples were measured using a high resolution HPGe gamma-ray spectrometer. The recent updated values of
gamma-rays intensities and decay half-life of the 187W nucleus were applied in this experiment to substantially
improve the cross-section results compared to the previous measurements. The thermal neutron capture crosssection and the resonance integral of the 186W(n,γ)187W reaction were determined relative to the standard reaction 197Au(n,γ)198Au. The values obtained are 31.76 ± 0.63 and 429.2 ± 25.6 barns for σ0 and I0 respectively.
Our results and previous measured values are compared, and discrepancies are discussed |
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