Back to 7439174
<Experiment xmlns="https://data.nist.gov/od/dm/nexus/experiment/v1.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<title>Electron energy loss spectroscopy (EELS) and energy dispersive spectroscopy (EDS) data from two pyroxene grains from ...</title>
<summary ref="https://zenodo.org/records/7439174">
<experimenter>Yuki Tanaka</experimenter>
<instrument pid="FEI-Titan-STEM">FEI Titan STEM</instrument>
<reservationStart>2021-04-14T16:17:04-06:00</reservationStart>
<reservationEnd>2022-12-14T16:40:26-07:00</reservationEnd>
<motivation>This dataset contains hyperspectral EELS and EDS data for two pyroxene grains from Apollo 17 soil 71501 as well as iron oxidation state standards used in the original article "Detection of ferric iron in an exsolved lunar pyroxene using electron energy loss spectroscopy (EELS): Implications for space weathering and redox conditions on the Moon" by Brittany Cymes, Katherine Burgess, and Rhonda Stroud. (doi: 10.1111/maps.13941).
Data source: <a href="https://doi.org/10.5281/zenodo.7439174">https://doi.org/10.5281/zenodo.7439174</a>
CC BY 4.0.</motivation>
</summary>
<sample id="sample-1">
<name>7439174</name>
<description>Electron energy loss spectroscopy (EELS) and energy dispersive spectroscopy (EDS) data from two pyroxene grains from Apollo 17 soil 71501.</description>
</sample>
<acquisitionActivity seqno="0">
<startTime>2022-12-07T16:18:16-07:00</startTime>
<sampleID>sample-1</sampleID>
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<dataset type="Image" role="Experimental">
<name>Air Glass_Fe3+EELS Standard.dm4</name>
<location>/7439174/Air Glass_Fe3+EELS Standard.dm4</location>
<format>DM4</format>
<description>EELS Fe3+ reference spectrum from air glass standard</description>
<preview>/7439174/Air Glass_Fe3+EELS Standard.dm4.thumb.png</preview>
<meta name="Analytic Format">Spectrum</meta>
<meta name="Analytic Signal">EELS</meta>
<meta name="Data Dimensions">(2048,)</meta>
<meta name="Data Type">TEM_Imaging</meta>
<meta name="GMS Version">2.31.734.0</meta>
<meta name="NexusLIMS Extraction – Date">2026-03-27T22:16:55.810376-06:00</meta>
<meta name="NexusLIMS Extraction – Module">nexusLIMS.extractors.plugins.dm3_extractor</meta>
<meta name="Creation Time">2022-12-07T16:18:54-07:00</meta>
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<dataset type="Spectrum" role="Experimental">
<name>Air Glass_Fe3+EELS Standard.msa</name>
<location>/7439174/Air Glass_Fe3+EELS Standard.msa</location>
<format>MSA</format>
<description>EELS Fe3+ reference spectrum from air glass, MSA format</description>
<preview>/7439174/Air Glass_Fe3+EELS Standard.msa.thumb.png</preview>
<meta name="Data Format">XY</meta>
<meta name="Data Type">EDS_Spectrum</meta>
<meta name="EDAX Date"/>
<meta name="EDAX Owner"/>
<meta name="EDAX Time"/>
<meta name="EDAX Title">Air Glass</meta>
<meta name="File Format">EMSA/MAS Spectral Data File</meta>
<meta name="MSA Format Version">1.0</meta>
<meta name="NexusLIMS Extraction – Date">2026-03-27T09:18:51.051023-06:00</meta>
<meta name="NexusLIMS Extraction – Module">nexusLIMS.extractors.plugins.msa_extractor</meta>
<meta name="Number of Data Columns">1.0</meta>
<meta name="Number of Data Points">2048.0</meta>
<meta name="Offset">673.2198</meta>
<meta name="Signal Type">ELS</meta>
<meta name="X Column Units">eV</meta>
<meta name="X Units Per Channel">0.05058</meta>
<meta name="Y Column Units"/>
<meta name="Creation Time">2022-12-07T23:21:22+00:00</meta>
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<description>Text documentation describing the pyroxene EELS/EDS dataset</description>
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<meta name="NexusLIMS Extraction – Date">2026-03-27T09:18:59.435330-06:00</meta>
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<dataset type="Spectrum" role="Experimental">
<name>FeNi_Fe0EELS Standard.dm4</name>
<location>/7439174/FeNi_Fe0EELS Standard.dm4</location>
<format>DM4</format>
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<meta name="Analytic Signal">EELS</meta>
<meta name="Cs" unit="millimeter">0.0</meta>
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<meta name="Data Type">STEM_EELS</meta>
<meta name="EELS – Background Removal Model">Power Law</meta>
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<meta name="EELS – Exposure" unit="second">0.05</meta>
<meta name="EELS – Number of frames">400</meta>
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<meta name="Operation Mode">SCANNING</meta>
<meta name="Operator">Kate</meta>
<meta name="STEM Camera Length" unit="millimeter">0.0</meta>
<meta name="Specimen">Fe/Ni alloy</meta>
<meta name="Creation Time">2022-12-07T16:19:20-07:00</meta>
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<meta name="Data Type">EDS_Spectrum</meta>
<meta name="EDAX Date"/>
<meta name="EDAX Owner">Kate</meta>
<meta name="EDAX Time"/>
<meta name="EDAX Title">FeNi</meta>
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<meta name="MSA Format Version">1.0</meta>
<meta name="NexusLIMS Extraction – Date">2026-03-27T09:18:53.121796-06:00</meta>
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<meta name="Offset">670.0</meta>
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<name>FeO_Fe2+EELS Standard.dm4</name>
<location>/7439174/FeO_Fe2+EELS Standard.dm4</location>
<format>DM4</format>
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<preview>/7439174/FeO_Fe2+EELS Standard.dm4.thumb.png</preview>
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<meta name="Analytic Signal">EELS</meta>
<meta name="Cs" unit="millimeter">0.0</meta>
<meta name="Data Dimensions">(2048,)</meta>
<meta name="Data Type">STEM_EELS</meta>
<meta name="EELS – Background Removal Model">Power Law</meta>
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<meta name="EELS – Exposure" unit="second">0.1</meta>
<meta name="EELS – Number of frames">576</meta>
<meta name="EELS – Processing Steps">Background Removal, Extracted from SI</meta>
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<meta name="Illumination Mode">STEM</meta>
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<format>MSA</format>
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<meta name="Data Type">EDS_Spectrum</meta>
<meta name="EDAX Date"/>
<meta name="EDAX Owner">Kate</meta>
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<meta name="EDAX Title">FeO</meta>
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<location>/7439174/Magnetite_Fe2+Fe3+EELS Standard.dm4</location>
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<meta name="Cs" unit="millimeter">0.0</meta>
<meta name="Data Dimensions">(2048,)</meta>
<meta name="Data Type">STEM_EELS</meta>
<meta name="EELS – Background Removal Model">Power Law</meta>
<meta name="EELS – Collection semi-angle" unit="milliradian">100.0</meta>
<meta name="EELS – Convergence semi-angle" unit="milliradian">0.0</meta>
<meta name="EELS – Exposure" unit="second">0.01</meta>
<meta name="EELS – Number of frames">3128</meta>
<meta name="EELS – Processing Steps">Background Removal, Extracted from SI</meta>
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<meta name="Specimen">Bonanza SiC</meta>
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<dataset type="Spectrum" role="Experimental">
<name>Magnetite_Fe2+Fe3+EELS Standard.msa</name>
<location>/7439174/Magnetite_Fe2+Fe3+EELS Standard.msa</location>
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<meta name="Data Type">EDS_Spectrum</meta>
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<meta name="NexusLIMS Extraction – Date">2026-03-27T09:18:57.190192-06:00</meta>
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<meta name="Offset">678.2778</meta>
<meta name="Signal Type">ELS</meta>
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<meta name="X Units Per Channel">0.05058</meta>
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<acquisitionActivity seqno="1">
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<dataset type="Image" role="Experimental">
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<dataset type="Image" role="Experimental">
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<dataset type="Image" role="Experimental">
<name>Fig. 10_EELS-SI_OK_480-582eV_Analog 0.dm4</name>
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<dataset type="SpectrumImage" role="Experimental">
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<name>Fig. 10_EELS-SI_OK_480-582eV_SI Survey Image.dm4</name>
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<dataset type="Image" role="Experimental">
<name>Fig. 10_EELS-SI_ZLP_-10-92eV_Analog 0.dm4</name>
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<dataset type="SpectrumImage" role="Experimental">
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</dataset>
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</Experiment>
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