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Geant4 development for actinides photofission simulation

Shi, Xiao-Ming ; Wang, Guan-Lin ; Luo, Kai-Jun ; Li, Xin-Xiang ; Zhu, Zhi-Chao ; Luo, Wen

Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment, 2024-05, Vol.1062, Article 169222 [Periódico revisado por pares]

Elsevier B.V

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  • Título:
    Geant4 development for actinides photofission simulation
  • Autor: Shi, Xiao-Ming ; Wang, Guan-Lin ; Luo, Kai-Jun ; Li, Xin-Xiang ; Zhu, Zhi-Chao ; Luo, Wen
  • Assuntos: Actinides photofission ; Delayed particles ; Fission fragments ; Geant4 simulations ; Prompt particles
  • É parte de: Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment, 2024-05, Vol.1062, Article 169222
  • Descrição: Actinides fission induced by energetic photons have a wide range of potential applications, including production of rare isotopes and neutron-rich exotic nuclei, generation of medical radioisotopes, nuclear waste package assay, and nuclear safeguards and inspection. Reliable simulation tool for the actinides photofission is of importance in the study of actinides photofission in and of itself as well as in the design of emerging photofission experiments. In this study, a complete actinides photofission including the generation of the photofission fragments and the subsequent emissions of prompt and delayed particles, are implemented within Geant4. The mass yield distributions, the isobaric charge distributions, and the multiplicity and spectral distributions of prompt neutrons from typical actinides photofission are then simulated. It is found that the simulation results agree well with both the available experimental and theoretical data, thus validating the implementation of the photofission process within Geant4. Furthermore, this development is used to evaluate the photofission rate and the release efficiency of fission products. The time and energy distributions of delayed neutrons and γ rays induced by the photofission on 235U are predicted accordingly. We conclude that this development provides a reliable tool for the study of emerging photofission experimental programs at high-intensity γ-beam laboratories worldwide, such as the Extreme Light Infrastructure - Nuclear Physics facility and the High Intensity Gamma-Ray Source at the Duke University.
  • Editor: Elsevier B.V
  • Idioma: Inglês
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  • Realização: ABCD-USP USP   Logos de Redes Sociais: Freepik

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