title: Temporally and spatially integrated elemental analysis algorithm for low-pressure micro-LIBS measurements.
abstract: Microscopic laser-induced breakdown spectroscopy (micro-LIBS) is a promising measurement technique for determining the relative elemental abundances of microscopic spots. Currently, the predominant source of measurement accuracy errors for micro-LIBS is shown to be based on a constant plasma temperature assumption. To reduce these measurement errors particularly in low-pressure applications (i.e., extraterrestrial environments), a mathematical data analysis algorithm is presented that utilizes the many linear independent emission lines per element to estimate the time-integrated state of the plasma in the form of a plasma state matrix coupled with a vector of relative elemental abundances in the observed emission.
authors.affiliation: Firestar Engineering, LLC, 557 Burbank Drive Unit J., Broomfield, Colorado 80020, USA. greg.mungas@firestar-engineering.com
authors.forename: Greg
authors.initials: G
authors.lastname: Mungas
mesh_terms: D000465:Algorithms; D004581:Electronics; D004583:Electrons; D007091:Image Processing, Computer-Assisted / Q000295:instrumentation / Q000379:methods*; D007477:Ions; D007834:Lasers; D015233:Models, Statistical; D008962:Models, Theoretical; D017785:Photons; D011312:Pressure; D015203:Reproducibility of Results; D013696:Temperature; D013997:Time Factors
chemical_list: D007477:Ions