Study on Geant4 Simulation of GRH System and Multiple-Objective Optimization of Optical Reflector System with Genetic Algorithm
发布时间：2025-04-30
点击次数：
- 发布时间：
- 2025-04-30
- 论文名称：
- Study on Geant4 Simulation of GRH System and Multiple-Objective Optimization of Optical Reflector System with Genetic Algorithm
- 发表刊物：
- Fusion Science and Technology
- 摘要：
- [Abstract]
Parameters of fusion reaction history play an important role in inertial confinement fusion diagnosis. Two types of detectors, named gas Cherenkov detector (GCD) and gamma reaction history (GRH), have been well applied for measurement of fusion reaction history due to their fast responses and capacities for setting the threshold. This study was carried out in two stages. First, simulation of some components of the GRH system was carried out with Geant4. Second, an optimization method by combining a genetic algorithm with the Geant4 code was established and applied to the optical reflectors of the GRH system. The optimization process was focused on 16.7-MeV gamma rays with a threshold of 12 MeV. An optimal time response of 5 ps and an efficiency at the receiving surface of 2.2661×10−2 Cherenkov photons/incident 16.7-MeV gamma ray were obtained at 1.9158 atm of CO2 pressure and a temperature of 20°C.
【Keywords】
GRH system; genetic algorithm optimization; Geant4 simulation
【KeyWords Plus】NATIONAL-IGNITION-FACILITY; GAMMA-RAYS; NUCLEAR DIAGNOSTICS; DETECTOR
http://www.ans.org/pubs/journals/fst/a_36221
dx.doi.org/10.13182/FST13-775
- 合写作者：
- Bin Liu, Huasi Hu*, Tiankui Zhang, Xingyin Guan
- 卷号：
- Volume 66, Number 3
- 页面范围：
- 405-413
- 是否译文：
- 否
- 发表时间：
- 2014-12-01