首页>
外国专利>
Method and system of an online - elemental analysis by means of a time gated imaging of atom emissions, which are induced by means of a laser plasma
Method and system of an online - elemental analysis by means of a time gated imaging of atom emissions, which are induced by means of a laser plasma
展开▼
机译：通过时间门控成像对原子发射进行在线元素分析的方法和系统，这些原子发射是由激光等离子体引起的
展开▼
页面导航
摘要
著录项
相似文献
摘要
A method and system of real time, on-line elemental analysis by temporal gated imaging of atomic emissions induced by laser plasma. In the method, three-dimensional spectral images are generated from two-dimensional images of non-thermal atomic emissions of a spatially extended sample. Two-dimensional images are acquired by using multiple fields of view of an imaging spectroscopic system. For spectral images acquired using a scanning interferometer, one plasma plume is produced in each region for each position of the scanning element of the interferometer, with a different subregion of the region being excited to produce each plume. The spectral images are compared to a database of atomic emission spectra to determine elemental content in each region. In the absence of a database of atomic emission spectra, the spectral images of the various regions are compared to each other to estimate elemental content of each region. The system features a synchronized elemental analysi spectroscopic imaging system, including means (18, 20) for setting at separate fields of view within each region of the sample, a gated excitation energy source (26) for inducing atomic emissions of the sample, a gated CCD (32), an optical system (28), control/data links (38), a control system, and data processing equipment (40) featuring algorithms for performing quantitation, classification, and scanalysis of the spectral data.
展开▼
