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Quantification of water content by laser induced breakdown spectroscopy on Mars

Rapin, William and Meslin, Pierre-Yves and Maurice, Sylvestre and Wiens, R.C. and Laporte, D. and Chauvire, B. and Gasnault, Olivier and Schröder, Susanne and Beck, Pierre and Bender, S. and Beyssac, O. and Cousin, Agnes and Dehouck, E. and Forni, Olivier (2017) Quantification of water content by laser induced breakdown spectroscopy on Mars. Spectrochimica Acta Part B-Atomic Spectroscopy. Elsevier. DOI: /10.1016/j.sab.2017.02.007 ISSN 0584-8547

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Official URL: http://www.sciencedirect.com/science/article/pii/S0584854717300769

Abstract

Abstract Laser induced breakdown spectroscopy (LIBS), as performed by the ChemCam instrument, provides a new technique to measure hydrogen at the surface of Mars. Using a laboratory replica of the LIBS instrument onboard the Curiosity rover, different types of hydrated samples (basalts, calcium and magnesium sulfates, opals and apatites) covering a range of targets observed on Mars have been characterized and analyzed. A number of factors related to laser parameters, atmospheric conditions and differences in targets properties can affect the standoff LIBS signal, and in particular the hydrogen emission peak. Dedicated laboratory tests were run to identify a normalization of the hydrogen signal which could best compensate for these effects and enable the application of the laboratory calibration to Mars data. We check that the hydrogen signal increases linearly with water content; and normalization of the hydrogen emission peak using to oxygen and carbon emission peaks (related to the breakdown of atmospheric carbon dioxide) constitutes a robust approach. Moreover, the calibration curve obtained is relatively independent of the samples types.

Item URL in elib:https://elib.dlr.de/111293/
Document Type:Article
Title:Quantification of water content by laser induced breakdown spectroscopy on Mars
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Rapin, WilliamUNSPECIFIEDUNSPECIFIED
Meslin, Pierre-YvesUNSPECIFIEDUNSPECIFIED
Maurice, SylvestreUNSPECIFIEDUNSPECIFIED
Wiens, R.C.UNSPECIFIEDUNSPECIFIED
Laporte, D.UNSPECIFIEDUNSPECIFIED
Chauvire, B.UNSPECIFIEDUNSPECIFIED
Gasnault, OlivierUNSPECIFIEDUNSPECIFIED
Schröder, SusanneSusanne.Schroeder (at) dlr.deUNSPECIFIED
Beck, PierreUNSPECIFIEDUNSPECIFIED
Bender, S.UNSPECIFIEDUNSPECIFIED
Beyssac, O.UNSPECIFIEDUNSPECIFIED
Cousin, AgnesUNSPECIFIEDUNSPECIFIED
Dehouck, E.UNSPECIFIEDUNSPECIFIED
Forni, OlivierUNSPECIFIEDUNSPECIFIED
Date:2017
Journal or Publication Title:Spectrochimica Acta Part B-Atomic Spectroscopy
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
DOI :/10.1016/j.sab.2017.02.007
Publisher:Elsevier
ISSN:0584-8547
Status:Published
Keywords:Laser-induced breakdown spectroscopy; LIBS, ChemCam; Hydrogen; Water; Hydration; Mars
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Technology
DLR - Research area:Raumfahrt
DLR - Program:R SY - Technik für Raumfahrtsysteme
DLR - Research theme (Project):R - Robotische Exploration (old), R - Vorhaben Optische Sensorik - Theorie, Kalibration, Verifikation, R - Vorhaben Exploration des Sonnensystems
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Optical Sensor Systems
Deposited By: Schröder, Susanne
Deposited On:28 Feb 2017 08:22
Last Modified:06 Sep 2019 15:22

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