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231224s2016 xx |||||o 00| ||eng c |
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|a 10.1107/S160057751502202X
|2 doi
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|a pubmed24n0852.xml
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|a (NLM)26698048
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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| 100 |
1 |
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|a Kozhevnikov, I V
|e verfasserin
|4 aut
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| 245 |
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|a Growth of nano-dots on the grazing-incidence mirror surface under FEL irradiation
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|c 2016
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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 Completed 20.04.2016
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|a Date Revised 24.12.2015
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a A new phenomenon on X-ray optics surfaces has been observed: the growth of nano-dots (40-55 nm diameter, 8-13 nm height, 9.4 dots µm(-2) surface density) on the grazing-incidence mirror surface under irradiation by the free-electron laser (FEL) FLASH (5-45 nm wavelength, 3° grazing-incidence angle). With a model calculation it is shown that these nano-dots may occur during the growth of a contamination layer due to polymerization of incoming hydrocarbon molecules. The crucial factors responsible for the growth of nano-dots in the model are the incident peak intensity and the reflection angle of the beam. A reduction of the peak intensity (e.g. replacement of the FEL beam by synchrotron radiation) as well as a decrease of the incident angle by just 1° (from 3° to 2°) may result in the total disappearance of the nano-dots. The model calculations are compared with surface analysis of two FLASH mirrors
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a FEL mirrors
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|a free-electron lasers
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|a interaction of FEL radiation with matter
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|a nano-dots
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|a Buzmakov, A V
|e verfasserin
|4 aut
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1 |
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|a Siewert, F
|e verfasserin
|4 aut
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1 |
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|a Tiedtke, K
|e verfasserin
|4 aut
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1 |
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|a Störmer, M
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Samoylova, L
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Sinn, H
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Journal of synchrotron radiation
|d 1994
|g 23(2016), 1 vom: 25. Jan., Seite 78-90
|w (DE-627)NLM09824129X
|x 1600-5775
|7 nnns
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| 773 |
1 |
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|g volume:23
|g year:2016
|g number:1
|g day:25
|g month:01
|g pages:78-90
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|u http://dx.doi.org/10.1107/S160057751502202X
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