LIBS plasma model validation

Steven T. Griffin; Brandon Dent

doi:10.1117/12.2016208

29 May 2013 LIBS plasma model validation

Steven T. Griffin, Brandon Dent

Proceedings Volume 8710, Chemical, Biological, Radiological, Nuclear, and Explosives (CBRNE) Sensing XIV; 87100A (2013) https://doi.org/10.1117/12.2016208
Event: SPIE Defense, Security, and Sensing, 2013, Baltimore, Maryland, United States

Abstract

An engineering thermodynamic approach to the plasma description associated with Laser Induced Breakdown Spectroscopy (LIBS) has been previously published. In the prior work, a non-traditional modeling approach was made to reduce the modeling system to a configuration compatible with incorporation into a TI6701. This modeling technique was necessitated by the extreme limitations that portability and robustness place on the physical size and power consumption of the computer for data processing and classification. The new modeling approach was previously reported. This presentation reports on the finalization of this and the validation of the result through comparison to more established models such as detailed balance, via the solution to a system of Boltzmann Equations. The emphasis is on the engineering modeling and its’ system implications - not a physics tutorial. Implications of the modeling approximations for the accuracy and repeatability of the complete sensor system will be presented. Possible utilization of newer, larger scale processors and the impact that would have on the model and associate sensor performance is addressed.

Citation Download Citation

Steven T. Griffin and Brandon Dent "LIBS plasma model validation", Proc. SPIE 8710, Chemical, Biological, Radiological, Nuclear, and Explosives (CBRNE) Sensing XIV, 87100A (29 May 2013); https://doi.org/10.1117/12.2016208

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