Dr. David Gamliel Profile

Dr. David Gamliel

at Physical Sciences Inc

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Proceedings Article | 15 June 2023 Presentation + Paper

Portable LIBS for field analysis of trace metals in fuels

Richard Wainner, Nicholas Aubut, Kristin Galbally-Kinney, Matan Aviram, David Gamliel, John Grimble, Mickey Frish, Shin-Juh Chen

Proceedings Volume 12516, 125160T (2023) https://doi.org/10.1117/12.2663611

KEYWORDS: Metals, Laser induced breakdown spectroscopy, Statistical analysis, Copper, Contamination, Chemical elements, Equipment, Portability, Spectroscopy, Plasma

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Physical Sciences Inc. (PSI) is developing a sensitive, rugged, person-portable, and safe instrument for the quick analysis of metals in jet fuels in fuel depots and transfer stations. The instrument fills a needed role for easy and affordable analysis of catalyzing metals content in fuel batches before they are used in, or shipped to, critical engines such as military aviation platforms. The instrument targets a panel of most likely and problematic metals that are often found in kerosene-based fuels, both refined and synthetic. The cause for concern lies in the potential for many metals, even at part per billion (ppb) concentrations, to catalyze rapid degradation of fuel performance, especially at elevated storage temperatures. The laser-induced breakdown spectroscopy (LIBS) technology development reported here has demonstrated a robust and viable measurement system for multiple contaminants of importance to military (and commercial) fuel distribution. Estimated detection limits for all elements of interest, save phosphorus, are at sub-ppm levels. Signal normalization with an added internal reference has demonstrated an adjusted concentration measurement accuracy <95% and useful operation of the method near the noise floor of the instrument. The accomplishments are strong indicators for commercial potential for the technology as a useful tool in the intended fuel monitoring application, as well as other industrial sample analysis needs.

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