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Title Neutron capture cross section measurements of 241Am at the n_TOF facility
Author(s) n_TOF Collaboration  显示全部 129 名作者
Publication 2020
Number of pages 5
In: EPJ Web Conf. 239 (2020) 01009
In: International Conference on Nuclear Data for Science and Technology (ND 2019), Beijing, China, 19 - 24 May 2019, pp.01009
DOI 10.1051/epjconf/202023901009
Subject category Nuclear Physics - Experiment
Accelerator/Facility, Experiment CERN PS ; nTOF
Abstract Neutron capture on 241 Am plays an important role in the nuclear energy production and also provides valuable information for the improvement of nuclear models and the statistical interpretation of the nuclear properties. A new experiment to measure the 241 Am(n,γ) cross section in the thermal region and the first few resonances below 10 eV has been carried out at EAR2 of the n_TOF facility at CERN. Three neutron-insensitive C6D6 detectors have been used to measure the neutron-capture gamma cascade as a function of the neutron time of flight, and then deduce the neutron capture yield. Preliminary results will be presented and compared with previously obtained results at the same facility in EAR1. In EAR1 the gamma-ray background at thermal energies was about 90% of the signal while in EAR2 is up to a 25 factor much more favorable signal to noise ratio. We also extended the low energy limit down to subthermal energies. This measurement will allow a comparison with neutron capture measurements conducted at reactors and using a different experimental technique.
Copyright/License publication: © The Authors, published by EDP Sciences. (License: CC-BY-4.0)

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 记录创建於2021-06-19,最後更新在2021-06-19


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