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

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.