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Purpose <p>Measurement methods and status of the cross sections for neutron-induced fissions are reviewed.</p> Methods <p>Three kinds of detectors for fission detection, including the ionization chamber, the parallel plate avalanche counters and the time projection chamber are illustrated. Two kinds of standard cross sections for neutron flux determination are also laid out. International researches on the fission cross section measurement based on LANSCE, CERN n_TOF, GELINA and CSNS Back-n facilities as well as those performed by our group are presented and analyzed.</p> Results and Conclusion <p>Comparing the fission cross section measurements using different methods, we conclude that the promising detector for high-precision fission cross section measurement is the TPC, and the ways for further reduction of the measurement uncertainty are prospected.</p>

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Measurement methods of the cross sections for neutron-induced fissions

  • 期刊论文

  • 发表日期：

    2025年4月2日

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  • Haofan Bai,
  • Guohui Zhang

摘要

Purpose

Measurement methods and status of the cross sections for neutron-induced fissions are reviewed.

Methods

Three kinds of detectors for fission detection, including the ionization chamber, the parallel plate avalanche counters and the time projection chamber are illustrated. Two kinds of standard cross sections for neutron flux determination are also laid out. International researches on the fission cross section measurement based on LANSCE, CERN n_TOF, GELINA and CSNS Back-n facilities as well as those performed by our group are presented and analyzed.

Results and Conclusion

Comparing the fission cross section measurements using different methods, we conclude that the promising detector for high-precision fission cross section measurement is the TPC, and the ways for further reduction of the measurement uncertainty are prospected.