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Simulation analysis of 35 MeV high-power electron accelerator driven white neutron source target.

Yiyuan Wu1, Bowen Cai2, Jijun Zou3

  • 1Jiangxi Province Key Laboratory of Nuclear Physics and Technology, East China University of Technology, Nanchang 330013, China; Engineering Research Center of Nuclear Technology Application, East China Institute of Technology, Ministry of Education, Nanchang 330013, China; School of Nuclear Science and Engineering, East China University of Technology, Nanchang 330013, China; Institute of Applied Electronics, China Academy of Engineering Physics, Mianyang 621000, China.

Applied Radiation and Isotopes : Including Data, Instrumentation and Methods for Use in Agriculture, Industry and Medicine
|December 20, 2024
PubMed
Summary

This study optimizes a white neutron source target station using Monte Carlo simulations for improved neutron science research. The findings guide the engineering design of high-power electron accelerator-driven neutron sources.

Keywords:
Monte Carlo algorithmNeutron characteristicsPhotoneutron sourceTungsten target

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Area of Science:

  • Nuclear Physics and Engineering
  • Accelerator Science
  • Materials Science

Background:

  • Electron accelerator-driven white neutron sources offer advantages like compact size and ultra-short pulses, complementing existing reactor and spallation sources.
  • High-current, high-power electron accelerators are crucial for advancing neutron science and nuclear technology.
  • Designing these sources requires extensive simulation for parameter optimization and thermal management.

Purpose of the Study:

  • To comprehensively simulate and optimize the target station for a 35 MeV/2 mA@70 kW electron accelerator-driven white neutron source.
  • To guide the structural design of the target, analyze neutron physics parameters, and assess electron energy deposition and radiation damage.
  • To perform thermal analysis of the target to address cooling challenges.

Main Methods:

  • Utilized the Monte Carlo algorithm for comprehensive simulation and optimization of the target station.
  • Investigated neutron physics parameters, electron energy deposition, and radiation damage distributions.
  • Employed ANSYS finite element analysis software for detailed thermal analysis of the target.

Main Results:

  • Optimized the structural design and neutron physics parameters of the target station.
  • Characterized the distribution of electron energy deposition and radiation damage.
  • Provided thermal analysis results crucial for target cooling system design.

Conclusions:

  • The simulation and optimization approach provides a robust framework for designing electron accelerator-driven white neutron sources.
  • Research results offer critical references for the engineering design of high-power neutron source target stations.
  • This work facilitates the development of advanced neutron sources for scientific research and technological applications.