Wan Xiong, Wang Peng, Wang Qi, Zhang Qing, Zhang Zhi-Min, Zhang Hua-Ming
Nondestructive Testing Technology Key Laboratory of the Ministry of Education, Nanchang Hangkong University, Nanchang 330063, China.
Guang Pu Xue Yu Guang Pu Fen Xi. 2013 Oct;33(10):2599-602.
In order to eliminate the deviation between the measured LIBS spectral line and the standard LIBS spectral line, and improve the accuracy of elements measurement, a research of physical deviation factors in laser induced breakdown spectroscopy technology was proposed. Under the same experimental conditions, the relationship of ablated hole effect and spectral wavelength was tested, the Stark broadening data of Mg plasma laser induced breakdown spectroscopy with sampling time-delay from 1.00 to 3.00 micros was also studied, thus the physical deviation influences such as ablated hole effect and Stark broadening could be obtained while collecting the spectrum. The results and the method of the research and analysis can also be applied to other laser induced breakdown spectroscopy experiment system, which is of great significance to improve the accuracy of LIBS elements measuring and is also important to the research on the optimum sampling time-delay of LIBS.
为了消除测量的激光诱导击穿光谱（LIBS）谱线与标准LIBS谱线之间的偏差，提高元素测量的准确性，提出了一项关于激光诱导击穿光谱技术中物理偏差因素的研究。在相同实验条件下，测试了烧蚀孔效应与光谱波长的关系，还研究了采样时间延迟从1.00到3.00微秒时镁等离子体激光诱导击穿光谱的斯塔克展宽数据，从而在采集光谱时能够获得诸如烧蚀孔效应和斯塔克展宽等物理偏差影响。该研究分析的结果和方法也可应用于其他激光诱导击穿光谱实验系统，这对于提高LIBS元素测量的准确性具有重要意义，对LIBS最佳采样时间延迟的研究也很重要。
