Applications of Geant4 toolkit to implosion physics for inertial confinement fusion experiments
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摘要: 基于Geant4建立了内爆物理实验多种诊断设备的全三维仿真模型,包括中子成像系统、用于硬X射线诊断的滤波应光谱仪、楔形滤片质子能谱仪、化学气相沉积金刚石探测器(CVD)等。根据Geant4仿真模拟的数据,建立了合适的解谱及图像还原算法,优化了系统设计,从理论上预估了诊断设备的诊断能力。此外仿真数据亦用于设计实验方案,建立诊断设备的标定方法等。Abstract: Several diagnostic systems used in implosion physics research were modeled by Geant4 toolkit, including the neutron imaging system, the filter-fluorescer spectrometer for hard X-ray diagnostic, the wedged-range filter spectrometer for proton diagnostic, the CVD diamond detector for neutron diagnostics, etc. The Geant4 simulation results were used to establish proper spectrum and images reconstructed algorithm, to optimize system design, and to estimate diagnostic system performance. Besides, based on the simulation, an experiment scheme was designed and calibration methods for the diagnostics were established.
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Key words:
- Geant4 /
- Inertial confinement fusion /
- implosion physics /
- nuclear diagnostics
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