Characterization of kinetic energy distributions of ions in high laser irradiance via orthogonal time-of-flight mass spectrometry

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	Characterization of kinetic energy distributions of ions in high laser irradiance via orthogonal time-of-flight mass spectrometry
	Lin, Yiming ; He, Miaohong ; Hang, Wei ; Huang, Benli ; Huang BL(黄本立)
刊名	http://dx.doi.org/10.1016/j.sab.2012.06.024
	2012-10
关键词	PLUME PROPAGATION EXPANSION DYNAMICS ABLATION PLUMES ALUMINUM PLASMA SPECTROSCOPY IONIZATION DEPOSITION AMBIENT METALS GASES
英文摘要	Natural Science Foundation of China [20775063, 21027011]; National 863 Program [2009AA06Z109]; NFFTBS [J1030415]; The characteristics of laser ionization in low pressure background gas have been investigated through the measurement of temporal and kinetic energy distributions of Al+, Mn+, Nb+, In+, Ta+, and Bi+ produced from a disk comprised of these metallic elements. A Q-switched Nd:YAG laser was utilized with a laser beam at 532 nm of wavelength and 1.0 x 10(10) W/cm(2) of laser irradiance. The kinetic energy was found to be the same for all ablated species at the given pressure, regardless of the atomic mass. The plume propagation translates from a free expansion at 0.5 Pa to a collisional and shockwave-like hydrodynamic expansion at 50 Pa. A plume splitting exists at 500-1500 Pa where only the fast component can be observed with a grounded nozzle voltage. As the nozzle voltage grows up, the thermalized component with increased kinetic energy is found depending on the nozzle voltage. (C) 2012 Elsevier B.V. All rights reserved.
语种	英语
内容类型	期刊论文
源URL	[http://dspace.xmu.edu.cn/handle/2288/64517]
专题	化学化工－已发表论文
推荐引用方式 GB/T 7714	Lin, Yiming,He, Miaohong,Hang, Wei,et al. Characterization of kinetic energy distributions of ions in high laser irradiance via orthogonal time-of-flight mass spectrometry[J]. http://dx.doi.org/10.1016/j.sab.2012.06.024,2012.
APA	Lin, Yiming,He, Miaohong,Hang, Wei,Huang, Benli,&黄本立.(2012).Characterization of kinetic energy distributions of ions in high laser irradiance via orthogonal time-of-flight mass spectrometry.http://dx.doi.org/10.1016/j.sab.2012.06.024.
MLA	Lin, Yiming,et al."Characterization of kinetic energy distributions of ions in high laser irradiance via orthogonal time-of-flight mass spectrometry".http://dx.doi.org/10.1016/j.sab.2012.06.024 (2012).