Confocal Soft x-ray Scanning Transmission Microscopy: Setup, alignment procedure and limitations
Späth A, Fink R, Raabe J (2015)
Publication Type: Journal article
Publication year: 2015
Journal
Book Volume: 22
Pages Range: 113
DOI: 10.1107/S1600577514022322
Abstract
Zone-plate-based scanning transmission soft X-ray microspectroscopy (STXM) is a well established technique for high-contrast imaging of sufficiently transparent specimens (e.g. ultrathin biological tissues, polymer materials, archaeometric specimens or magnetic thin films) with spatial resolutions in the regime of 20nm and high spectroscopic or chemical sensitivity. However, due to the relatively large depth of focus of zone plates, the resolution of STXM along the optical axis so far stays unambiguously behind for thicker X-ray transparent specimens. This challenge can be addressed by the implementation of a second zone plate in the detection pathway of the beam, resulting in a confocal arrangement. Within this paper a first proof-of-principle study for a confocal STXM (cSTXM) and an elaborate alignment procedure in transmission and fluorescence geometry are presented. Based on first confocal soft X-ray micrographs of well known specimens, the advantage and limitation of cSTXM as well as further development potentials for future applications are discussed.
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Switzerland (CH)How to cite
APA:
Späth, A., Fink, R., & Raabe, J. (2015). Confocal Soft x-ray Scanning Transmission Microscopy: Setup, alignment procedure and limitations. Journal of Synchrotron Radiation, 22, 113. https://doi.org/10.1107/S1600577514022322
MLA:
Späth, Andreas, Rainer Fink, and Jörg Raabe. "Confocal Soft x-ray Scanning Transmission Microscopy: Setup, alignment procedure and limitations." Journal of Synchrotron Radiation 22 (2015): 113.
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