Microbial Mats Investigated with the Scanning X-ray Analytical Microscope
نویسندگان
چکیده
منابع مشابه
Analytical formulae for calculation of X-ray detector solid angles in the scanning and scanning/transmission analytical electron microscope.
Closed form analytical equations used to calculate the collection solid angle of six common geometries of solid-state X-ray detectors in scanning and scanning/transmission analytical electron microscopy are presented. Using these formulae one can make realistic comparisons of the merits of the different detector geometries in modern electron column instruments. This work updates earlier formula...
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Using the scanning transmission X-ray microscope at BESSY II, colloidal structures from a Chernozem soil have been studied with a spatial resolution around 60 nm and a spectral resolution of 1,700 at the K-absorption edge of carbon. Elemental mapping has been used to determine the distribution of organic matter within the colloidal structures. Spectra have been extracted from image stacks to ob...
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We obtain quantitative phase reconstructions from differential phase contrast images obtained with a scanning transmission x-ray microscope and 2.5 keV x rays. The theoretical basis of the technique is presented along with measurements and their interpretation.
متن کاملThree-dimensional phase-contrast X-ray microtomography with scanning–imaging X-ray microscope optics
A three-dimensional (3D) X-ray tomographic micro-imaging system has been developed. The optical system is based on a scanning-imaging X-ray microscope (SIXM) optics, which is a hybrid system consisting of a scanning microscope optics with a one-dimensional (1D) focusing (line-focusing) device and an imaging microscope optics with a 1D objective. In the SIXM system, each 1D dataset of a two-dime...
متن کاملExperimental investigation of beam heating in a soft X-ray scanning transmission X-ray microscope.
A variable temperature sample holder with an operational range of 15 to 200 °C and an accuracy of ±1 °C has been fabricated for scanning transmission X-ray microscopes (STXM). Here we describe the device, and use it to image the polycrystalline morphology of solid stearic acid and palmitic acid at temperatures near their respective melting points as a means of checking for possible sample heati...
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ژورنال
عنوان ژورنال: Journal of the Mineralogical Society of Japan
سال: 1996
ISSN: 1883-7018,0454-1146
DOI: 10.2465/gkk1952.26.107