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Chinese Physics C > 2024, Vol. 48 > Issue(10): 104002 DOI: 10.1088/1674-1137/ad66c0

New measurement of the neutron-induced total cross-sections ofnatCr in a wide energy range on the Back-n at CSNS

  • 1.

    School of Nuclear Science and Technology, University of South China, Hengyang 421001, China

  • 2.

    Institute of High Energy Physics, Chinese Academy of Sciences (CAS), Beijing 100049, China

  • 3.

    Spallation Neutron Source Science Center, Dongguan 523803, China

  • 4.

    Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang 621900, China

  • The neutron total cross-section of $ ^{\mathrm{nat}} $ Cr plays a crucial role in new nuclear engineering design and fundamental science. A new measurement of the neutron-induced total cross-sections of $ ^{\mathrm{nat}} $ Cr was performed using the transmission method on the back-streaming white neutron beamline (Back-n) at the China Spallation Neutron Source (CSNS). The neutron energy was determined using the time-of-flight technique. The neutron total cross-sections of $ ^{\mathrm{nat}} $ Cr were obtained across a broad energy range (0.3 eV−20 MeV) in one experiment for the first time. The resulting effective total cross-sections were compared with the existing experimental data in different energy ranges, which revealed good agreement with the evaluated libraries. Theoretical calculation of the total cross-section in the energy range of 1.5 to 20 MeV was then conducted using TALYS-1.96 and compared with the present results. The measurement provides a high-quality total cross-section of $ ^{\mathrm{nat}} $ Cr, including detailed uncertainty data across a wide energy range, offering a valuable reference for nuclear data re-evaluation and nuclear engineering design.
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Baoqian Li, Min Xiao, Yonghao Chen, Jieming Xue, Xinxiang Li, Han Yi, Pinjing Cheng, Rong Liu, Yiwei Yang, Zijie Han, Dajun Zhao, Haoqiang Wang, Jirong Zhao, Peng Luan, Jing Liu, Zijun Liu, Chaomin Chen, Wen Luo, Bo Zheng and Song Feng. New measurement of the neutron-induced total cross-sections of natCr in a wide energy range on the Back-n at CSNS[J]. Chinese Physics C. doi: 10.1088/1674-1137/ad66c0
Baoqian Li, Min Xiao, Yonghao Chen, Jieming Xue, Xinxiang Li, Han Yi, Pinjing Cheng, Rong Liu, Yiwei Yang, Zijie Han, Dajun Zhao, Haoqiang Wang, Jirong Zhao, Peng Luan, Jing Liu, Zijun Liu, Chaomin Chen, Wen Luo, Bo Zheng and Song Feng. New measurement of the neutron-induced total cross-sections of natCr in a wide energy range on the Back-n at CSNS[J]. Chinese Physics C. doi:10.1088/1674-1137/ad66c0 shu
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