Examinando por Autor "Medina, J."

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Acceso Abierto
Analytical database of Martian minerals (ADaMM): Project synopsis and Raman data overview
(Wiley Analytical Science, 2021-08-12) Veneranda, M.; Sanz Arranz, A.; Manrique, J. A.; Saiz, M.; García Prieto, C.; Pascual Sánchez, E.; Medina, J.; Konstantinidis, M.; Lalla, E.; Moral, A.; Nieto, L. M.; Rull, F.; López Reyes, G.; Agencia Estatal de Investigación (AEI); European Commission (EC); Veneranda, M. [0000-0002-7185-2791]; Lalla, E. A. [0000-0002-0005-1006]; Moral, A. G. [0000-0002-6190-8560]; López Reyes, G. [0000-0003-1005-1760]
The Mars2020/Perseverance and ExoMars/Rosalind Franklin rovers are both slated to return the first Raman spectra ever collected from another planetary surface, Mars. In order to optimize the rovers scientific outcome, the scientific community needs to be provided with tailored tools for data treatment and interpretation. Responding to this need, the purpose of the Analytical Database of Martian Minerals (ADaMM) project is to build an extended multianalytical database of mineral phases that have been detected on Mars or are expected to be found at the landing sites where the two rovers will operate. Besides the use of conventional spectrometers, the main objective of the ADaMM database is to provide access to data collected by means of laboratory prototypes simulating the analytical performances of the spectroscopic systems onboard the Mars 2020 and ExoMars rovers. Planned to be released to the public in 2022, ADaMM will also provide access to data treatment and visualization tools developed in the framework of the mentioned space exploration missions. As such, the present work seeks to provide an overview of the ADaMM online platform, spectral tools, and mineral collection. In addition to that, the manuscript describes the Raman spectrometers used to analyze the mineral collection and presents a representative example of the analytical performance ensured by the Raman prototypes assembled to simulate the Raman Laser Spectrometer (RLS) and SuperCam systems.
Acceso Abierto
ExoFiT trial at the Atacama Desert (Chile): Raman detection of biomarkers by representative prototypes of the ExoMars/Raman Laser Spectrometer
(Nature Research Journals, 2021-01-14) Veneranda, M.; López Reyes, G.; Saiz, J.; Manrique, J. A.; Sanz Arranz, A.; Medina, J.; Moral, A.; Seoane, L.; Ibarmia, S.; Rull, F.; European Research Council (ERC); Agencia Estatal de Investigación (AEI)
In this work, the analytical research performed by the Raman Laser Spectrometer (RLS) team during the ExoFiT trial is presented. During this test, an emulator of the Rosalind Franklin rover was remotely operated at the Atacama Desert in a Mars-like sequence of scientific operations that ended with the collection and the analysis of two drilled cores. The in-situ Raman characterization of the samples was performed through a portable technology demonstrator of RLS (RAD1 system). The results were later complemented in the laboratory using a bench top RLS operation simulator and a X-Ray diffractometer (XRD). By simulating the operational and analytical constraints of the ExoMars mission, the two RLS representative instruments effectively disclosed the mineralogical composition of the drilled cores (k-feldspar, plagioclase, quartz, muscovite and rutile as main components), reaching the detection of minor phases (e.g., additional phyllosilicate and calcite) whose concentration was below the detection limit of XRD. Furthermore, Raman systems detected many organic functional groups (–C≡N, –NH2 and C–(NO2)), suggesting the presence of nitrogen-fixing microorganisms in the samples. The Raman detection of organic material in the subsurface of a Martian analogue site presenting representative environmental conditions (high UV radiation, extreme aridity), supports the idea that the RLS could play a key role in the fulfilment of the ExoMars main mission objective: to search for signs of life on Mars.
Restringido
Raman Laser Spectrometer (RLS) calibration target design to allow onboard combined science between the RLS and MicrOmega instruments on the ExoMars rover
(Wiley Analytical Science, 2020-01-23) López Reyes, G.; Pilorget, C.; Moral, A.; Manrique, J. A.; Berrocal, A.; Veneranda, M.; Rull, F.; Medina, J.; Hamm, V.; Bibring, J. P.; Rodríguez, J. A.; Pérez Canora, C.; Mateo Martí, Eva; Prieto Ballesteros, O.; Lalla, E.; Vago, J. L.; Sanz de la Rosa, Andrea; Ministerio de Economía y Competitividad (MINECO); Agencia Estatal de Investigación (AEI); López Reyes, G. [0000-0003-1005-1760]; Prieto Ballesteros, O. [0000-0002-2278-1210]; Manrique, J. A. [0000-0002-2053-2819]; Moral, A. G. [0000-0002-6190-8560]; Venerada, M. [0000-0002-7185-2791]; Unidad de Excelencia Científica María de Maeztu Centro de Astrobiología del Instituto Nacional de Técnica Aeroespacial y CSIC, MDM-2017-0737
The ExoMars rover, scheduled to be launched in 2020, will be equipped with a novel and diverse payload. It will also include a drill to collect subsurface samples (from 0‐ to 2‐m depth) and deliver them to the rover analytical laboratory, where it will be possible to perform combined science between instruments. For the first time, the exact same sample target areas will be investigated using complementary analytical methods—infrared spectrometry, Raman spectrometry, and laser desorption mass spectrometry—to establish mineralogical and organic chemistry composition. Fundamental for implementing this cooperative science strategy is the Raman Laser Spectrometer (RLS) calibration target (CT). The RLS CT features a polyethylene terephthalate disk used for RLS calibration and verification of the instrument during the mission. In addition, special patterns have been recorded on the RLS CT disk that the other instruments can detect and employ to determine their relative position. In this manner, the RLS CT ensures the spatial correlation between the three analytical laboratory instruments: MicrOmega, RLS, and MOMA. The RLS CT has been subjected to a series of tests to qualify it for space utilization and to characterize its behavior during the mission. The results from the joint work performed by the RLS and MicrOmega instrument teams confirm the feasibility of the “combined science” approach envisioned for ExoMars rover operations, whose science return is optimized when complementing the RLS and MicrOmega joint analysis with the autonomous RLS operation.
Acceso Abierto
SuperCam Calibration Targets: Design and Development
(Springer Link, 2020-11-26) Manrique, J. A.; López Reyes, G.; Cousin, A.; Rull, F.; Maurice, S.; Wiens, R. C.; Madariaga, M. B.; Gasnault, O.; Aramendia, J.; Arana, G.; Beck, P.; Bernard, S.; Bernardi, P.; Bernt, M. H.; Berrocal, A.; Beyssac, O.; Caïs, P.; Castro, K.; Clegg, S. M.; Cloutis, E.; Dromart, G.; Drouet, C.; Dubois, B.; Escribano, D.; Fabre, C.; Fernández, A.; Forni, O.; García Baonza, V.; Gontijo, I.; Johnson, J. R.; Laserna, J.; Lasue, J.; Madsen, S.; Mateo Martí, Eva; Medina, J.; Meslin, P.; Montagnac, G.; Moros, J.; Ollila, A. M.; Ortega, C.; Prieto Ballesteros, O.; Reess, J. M.; Robinson, S.; Rodríguez, Joseph; Saiz, J.; Sanz Arranz, J. A.; Sard, I.; Sautter, V.; Sobron, P.; Toplis, M.; Veneranda, M.; Agencia Estatal de Investigación (AEI)
SuperCam is a highly integrated remote-sensing instrumental suite for NASA’s Mars 2020 mission. It consists of a co-aligned combination of Laser-Induced Breakdown Spectroscopy (LIBS), Time-Resolved Raman and Luminescence (TRR/L), Visible and Infrared Spectroscopy (VISIR), together with sound recording (MIC) and high-magnification imaging techniques (RMI). They provide information on the mineralogy, geochemistry and mineral context around the Perseverance Rover. The calibration of this complex suite is a major challenge. Not only does each technique require its own standards or references, their combination also introduces new requirements to obtain optimal scientific output. Elemental composition, molecular vibrational features, fluorescence, morphology and texture provide a full picture of the sample with spectral information that needs to be co-aligned, correlated, and individually calibrated. The resulting hardware includes different kinds of targets, each one covering different needs of the instrument. Standards for imaging calibration, geological samples for mineral identification and chemometric calculations or spectral references to calibrate and evaluate the health of the instrument, are all included in the SuperCam Calibration Target (SCCT). The system also includes a specifically designed assembly in which the samples are mounted. This hardware allows the targets to survive the harsh environmental conditions of the launch, cruise, landing and operation on Mars during the whole mission. Here we summarize the design, development, integration, verification and functional testing of the SCCT. This work includes some key results obtained to verify the scientific outcome of the SuperCam system.