西北师范大学学报（自然科学版）2024，Vol.60Issue(1)：39-45,7.DOI:10.16783/j.cnki.nwnuz.2024.01.007
不同背景气体及压强对激光Al等离子体动力学演化特性的影响
Effects of different ambient gases and pressures on the evolutionary properties of laser-produced Al plasma
摘要
Abstract
The kinetic evolution of the laser-produced plasma(LPP)under three ambient gases(air,helium and argon)and three ambient pressures(eg.105 Pa,500 Pa and 5×10-4 Pa)has been studied in detail from both experimental and theoretical aspects.Experimentally,a high time-resolved transient imaging measurement device was built to obtain transient images of the Al plasma plume in the 180～850 nm band for different ambient gases and pressures.Theoretically,the kinetic evolution of the Al plasma was simulated using a radiation hydrodynamic simulation program,and the experimentally obtained Al plasma plume size were fitted.The results show that different ambient gases and pressures have different confinement effects on the Al plasma,and the larger the atomic number and the higher the pressure,the stronger the confinement ability to the Al plasma.关键词
激光等离子体/瞬态成像法/辐射流体力学模拟程序Key words
laser-produced plasma/fast photography/radiation hydrodynamic simulation program分类
信息技术与安全科学引用本文复制引用
李越,敏琦,符彦飙,胡素素,陶倩倩..不同背景气体及压强对激光Al等离子体动力学演化特性的影响[J].西北师范大学学报（自然科学版）,2024,60(1):39-45,7.基金项目
西北师范大学重点培育项目(NWNU-LKZD2021-02) （NWNU-LKZD2021-02）
兰州市人才创新创业项目(2020-RC-143) （2020-RC-143）
