New sample holder geometry for high precision isotope analyses
Secondary ion mass spectrometry is applied to a wide range of Geoscience applications because of its capability to provide direct in situ measurement of elemental and isotopic composition. The CAMECA IMS 1280 and 1280‐HR are large geometry ultra‐high sensitivity ion microprobes that provide excellen...
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Veröffentlicht in: | Surface and interface analysis 2013-01, Vol.45 (1), p.553-556 |
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description | Secondary ion mass spectrometry is applied to a wide range of Geoscience applications because of its capability to provide direct in situ measurement of elemental and isotopic composition. The CAMECA IMS 1280 and 1280‐HR are large geometry ultra‐high sensitivity ion microprobes that provide excellent precision and reproducibility for isotope ratio measurements. A precision at the tenth permil level is routinely achieved for the measurement of 18O/16O ratio from 10 µm spots using multicollection Faraday Cups. However, analytical artifacts related to the surface topography and to the location of the analysis in the sample (X–Y effects) are known to bias the precision for isotope analysis. The X–Y effects have been investigated using a CAMECA prototype sample holder design. Results show a significant improvement in terms of reproducibility for analyses performed over a large area of the sample. Detailed analytical data using the new sample holder will be presented. Copyright © 2012 John Wiley & Sons, Ltd. |
doi_str_mv | 10.1002/sia.5061 |
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Results show a significant improvement in terms of reproducibility for analyses performed over a large area of the sample. Detailed analytical data using the new sample holder will be presented. 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T.</creatorcontrib><creatorcontrib>Valley, J. W.</creatorcontrib><creatorcontrib>Fernandes, F.</creatorcontrib><creatorcontrib>Schuhmacher, M.</creatorcontrib><title>New sample holder geometry for high precision isotope analyses</title><title>Surface and interface analysis</title><addtitle>Surf. Interface Anal</addtitle><description>Secondary ion mass spectrometry is applied to a wide range of Geoscience applications because of its capability to provide direct in situ measurement of elemental and isotopic composition. The CAMECA IMS 1280 and 1280‐HR are large geometry ultra‐high sensitivity ion microprobes that provide excellent precision and reproducibility for isotope ratio measurements. A precision at the tenth permil level is routinely achieved for the measurement of 18O/16O ratio from 10 µm spots using multicollection Faraday Cups. However, analytical artifacts related to the surface topography and to the location of the analysis in the sample (X–Y effects) are known to bias the precision for isotope analysis. The X–Y effects have been investigated using a CAMECA prototype sample holder design. Results show a significant improvement in terms of reproducibility for analyses performed over a large area of the sample. Detailed analytical data using the new sample holder will be presented. Copyright © 2012 John Wiley & Sons, Ltd.</description><subject>Atomic, molecular, and ion beam impact and interactions with surfaces</subject><subject>CAMECA</subject><subject>Condensed matter: electronic structure, electrical, magnetic, and optical properties</subject><subject>Electron and ion emission by liquids and solids; impact phenomena</subject><subject>Exact sciences and technology</subject><subject>geology</subject><subject>geosciences</subject><subject>Impact phenomena (including electron spectra and sputtering)</subject><subject>IMS 1280</subject><subject>IMS 1280-HR</subject><subject>ion microprobe</subject><subject>isotope ratios</subject><subject>oxygen</subject><subject>Physics</subject><subject>sample holder</subject><subject>SIMS</subject><subject>stable isotopes</subject><subject>X-Y effects</subject><issn>0142-2421</issn><issn>1096-9918</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2013</creationdate><recordtype>article</recordtype><recordid>eNp1kF1LwzAUhoMoOKfgTyiI4E1nTpLm40YYTudgzgsVwZuQtenW2S016Zj993Zu7M6bczjw8PCeF6FLwD3AmNyGwvQSzOEIdQArHisF8hh1MDASE0bgFJ2FsMAYSyp5B91N7CYKZlmVNpq7MrM-mlm3tLVvotz5aF7M5lHlbVqEwq2iIrjaVTYyK1M2wYZzdJKbMtiL_e6i98eHt_unePwyHN33x3FKOUA8taDAEKykzShnkClGpu3NMzUVOEnbwRLJUs5kQilkeaZEwpgkGIwgAtMuutp5K---1zbUeuHWvg0RNBCquARCttTNjkq9C8HbXFe-WBrfaMB6245u29Hbdlr0ei80ITVl7s2qffHAEy7bAH9cvOM2RWmbf336ddTfe_d8EWr7c-CN_9JcUJHoj8lQC6GeB4x96gH9Ba0Uf0A</recordid><startdate>201301</startdate><enddate>201301</enddate><creator>Peres, P.</creator><creator>Kita, N. 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W.</au><au>Fernandes, F.</au><au>Schuhmacher, M.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>New sample holder geometry for high precision isotope analyses</atitle><jtitle>Surface and interface analysis</jtitle><addtitle>Surf. Interface Anal</addtitle><date>2013-01</date><risdate>2013</risdate><volume>45</volume><issue>1</issue><spage>553</spage><epage>556</epage><pages>553-556</pages><issn>0142-2421</issn><eissn>1096-9918</eissn><coden>SIANDQ</coden><abstract>Secondary ion mass spectrometry is applied to a wide range of Geoscience applications because of its capability to provide direct in situ measurement of elemental and isotopic composition. The CAMECA IMS 1280 and 1280‐HR are large geometry ultra‐high sensitivity ion microprobes that provide excellent precision and reproducibility for isotope ratio measurements. 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subjects | Atomic, molecular, and ion beam impact and interactions with surfaces CAMECA Condensed matter: electronic structure, electrical, magnetic, and optical properties Electron and ion emission by liquids and solids impact phenomena Exact sciences and technology geology geosciences Impact phenomena (including electron spectra and sputtering) IMS 1280 IMS 1280-HR ion microprobe isotope ratios oxygen Physics sample holder SIMS stable isotopes X-Y effects |
title | New sample holder geometry for high precision isotope analyses |
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