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231225s2020 xx |||||o 00| ||eng c |
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|a 10.1107/S1600577520010097
|2 doi
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|a pubmed24n1048.xml
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|a (NLM)32876602
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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|a Sier, Daniel
|e verfasserin
|4 aut
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|a High accuracy determination of photoelectric cross sections, X-ray absorption fine structure and nanostructure analysis of zinc selenide using the X-ray extended range technique
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|c 2020
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Revised 03.09.2020
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a Measurements of mass attenuation coefficients and X-ray absorption fine structure (XAFS) of zinc selenide (ZnSe) are reported to accuracies typically better than 0.13%. The high accuracy of the results presented here is due to our successful implementation of the X-ray extended range technique, a relatively new methodology, which can be set up on most synchrotron X-ray beamlines. 561 attenuation coefficients were recorded in the energy range 6.8-15 keV with measurements concentrated at the zinc and selenium pre-edge, near-edge and fine-structure absorption edge regions. This accuracy yielded detailed nanostructural analysis of room-temperature ZnSe with full uncertainty propagation. Bond lengths, accurate to 0.003 Å to 0.009 Å, or 0.1% to 0.3%, are plausible and physical. Small variation from a crystalline structure suggests local dynamic motion beyond that of a standard crystal lattice, noting that XAFS is sensitive to dynamic correlated motion. The results obtained in this work are the most accurate to date with comparisons with theoretically determined values of the attenuation showing discrepancies from literature theory of up to 4%, motivating further investigation into the origin of such discrepancies
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|a Journal Article
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|a 0.1% accuracy
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|a K-edges
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|a XAFS
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|a XERT
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|a ZnSe
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1 |
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|a Cousland, Geoffrey P
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Trevorah, Ryan M
|e verfasserin
|4 aut
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|a Ekanayake, Ruwini S K
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Tran, Chanh Q
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Hester, James R
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Chantler, Christopher T
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Journal of synchrotron radiation
|d 1994
|g 27(2020), Pt 5 vom: 01. Sept., Seite 1262-1277
|w (DE-627)NLM09824129X
|x 1600-5775
|7 nnns
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| 773 |
1 |
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|g volume:27
|g year:2020
|g number:Pt 5
|g day:01
|g month:09
|g pages:1262-1277
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|u http://dx.doi.org/10.1107/S1600577520010097
|3 Volltext
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|d 27
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|e Pt 5
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|h 1262-1277
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