应用激光, 2009, 29 (2): 161, 网络出版: 2010-01-22
样品制备条件对激光诱导土壤等离子体辐射的影响
Influence of Sample’s Preparation Conditions on Laser-Induced Soil Plasma Radiation
激光诱导等离子体 样品制备条件 土壤 光谱强度 信背比 laser-induced plasma preparation conditions soil spectral intensity signal-to-background ratio
摘要
为了获得高质量的激光等离子体光谱,以土壤样品为靶,实验研究了不同制备条件下的样品对激光诱导等离子体辐射的影响。结果表明,随着制备样品所用压强从8MPa到20MPa的增加,样品密度增大,等离子体的发射光谱强度和信背比都逐渐提高。当分别用100#、360#、600#砂纸处理样品表面后,发现600#砂纸打磨样品可以获得更高质量的激光光谱。所以,样品制备条件是影响激光光谱质量的重要因素之一。
Abstract
In order to obtain high-quality laser-induced plasma spectra,the influence of different conditions during soil samples preparation on the radiation generated from the laser-induced plasma was investigated. The results show that the density was increased and the line intensities and signal-to-background ratio were enhanced with the pressure rising from 8MPa to 20MPa for sample preparation. After polishing the surface of the sample by 100#、360# and 600# sandpaper,it was found that the high-quality laser spectra could be obtained with the 600# sandpaper. Consequently,it has been identified that the condition of sample preparation is one of the most important factors that affect the quality of laser spectra.
陈金忠, 张琳晶, 张晓萍, 苏红新, 李光. 样品制备条件对激光诱导土壤等离子体辐射的影响[J]. 应用激光, 2009, 29(2): 161. Chen Jinzhong, Zhang Linjing, Zhang Xiaoping, Su Hongxin, Li Guang. Influence of Sample’s Preparation Conditions on Laser-Induced Soil Plasma Radiation[J]. APPLIED LASER, 2009, 29(2): 161.