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Determination of the 232Th(n,γ) cross section from 10 to 200 keV at the Back-n facility at CSNS.
- Source :
- European Physical Journal A -- Hadrons & Nuclei; Oct2023, Vol. 59 Issue 10, p1-11, 11p
- Publication Year :
- 2023
-
Abstract
- The neutron capture cross section of 232 T h has been measured with the time-of-flight technique in the energy range from 10 to 200 keV at the back-streaming white neutron beam-line (Back-n) of China Spallation Neutron Source (CSNS). The pulse height weighting technique (PHWT) was applied with four C 6 D 6 liquid scintillators to measure the prompt gamma-ray energy release following neutron capture. The measurement data, corrected with the PHWT, have been normalized to the saturated resonances at 21.8 eV. The background was determined by a lead sample measurement and detailed Monte Carlo simulations. The 232 T h (n , γ) average cross sections have been determined relative to the 197 A u (n , γ) reaction cross sections. The results are consistent with the evaluation values of CENDL-3.2 and JENDL-5. The total uncertainties, including the PHWT, normalization, background subtraction, corrections, and relative measurement, are in the range of 4.5–4.8%. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 14346001
- Volume :
- 59
- Issue :
- 10
- Database :
- Complementary Index
- Journal :
- European Physical Journal A -- Hadrons & Nuclei
- Publication Type :
- Academic Journal
- Accession number :
- 173770159
- Full Text :
- https://doi.org/10.1140/epja/s10050-023-01126-0