A versatile soft X-ray transmission system for time resolved in situ microscopy with chemical contrast

We present the design and operation of a versatile soft X-ray transmission system for time resolved in situ microscopy with chemical contrast. The utility of the setup is demonstrated by results from following a corrosion process of iron in saline environment, subjected to a controlled humid atmosph...

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Bibliographic Details
Published inUltramicroscopy Vol. 109; no. 9; pp. 1157 - 1163
Main Authors Forsberg, J., Englund, C.-J., Duda, L.-C.
Format Journal Article
LanguageEnglish
Published Netherlands Elsevier B.V 01.08.2009
Subjects
Fysik
In situ specimen treatment
NATURAL SCIENCES
NATURVETENSKAP
Physics
X-ray microscope design and characterization
X-ray microscopy
78.70.Dm
X-ray microscopy
In situ specimen treatment
X-ray microscope design and characterization
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Summary:We present the design and operation of a versatile soft X-ray transmission system for time resolved in situ microscopy with chemical contrast. The utility of the setup is demonstrated by results from following a corrosion process of iron in saline environment, subjected to a controlled humid atmosphere. The system includes a transmission flow-cell reactor that allows for in situ microscopic probing with soft X-rays. We employ a full field technique by using a nearly collimated X-ray beam that produces an unmagnified projection of the transmitted soft X-rays (below 1.1keV) which is magnified and recorded by an optical CCD camera. Time lapse series with chemical contrast allow us to follow and interpret the chemical processes in detail. The obtainable lateral resolution is a few μm, sufficient to detect filiform corrosion on iron.
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ISSN:0304-3991
1879-2723
1879-2723
DOI:10.1016/j.ultramic.2009.05.002