Dark-field imaging with the scanning transmission x-ray microscope

Morrison, G. R.; Browne, M. T.
January 1992
Review of Scientific Instruments;Jan1992, Vol. 63 Issue 1, p611
Academic Journal
The King's College London scanning transmission x-ray microscope in use on beam line 5U2 at the SRS, SERC Daresbury Laboratory, has been modified to allow dark-field images to be formed using only the x rays scattered by the specimen. Experiments have been performed with a number of different detector geometries, and this has confirmed that the strongest scattering arises from edges or thickness gradients in the specimen. Although the dark-field signal is only a small fraction of the normal transmitted bright-field signal, features can be revealed with high contrast, and it has proved possible to detect the presence of features that are below the resolution limit of the microscope.


Related Articles

  • Annular-type solid state detector for a scanning x-ray analytical microscope. Shimomura, S.; Nakazawa, H. // Review of Scientific Instruments;Sep95, Vol. 66 Issue 9, p4544 

    Proposes several types of scanning x-ray microscopes to investigate biological samples. Attachment of an annular-type solid state detector to a scanning x-ray analytical microscope to accomplish certain superior analytical features; Crystallite distribution of an agate sample depicted as a...

  • A novel imaging x-ray microscope based on a spherical crystal. Sanchez del Rio, M.; Alianelli, L.; Pikuz, T. A.; Faenov, A. Ya. // Review of Scientific Instruments;Aug2001, Vol. 72 Issue 8 

    A novel, compact, large field, and spectrally tunable imaging x-ray microscope is presented. It is based on the use of an isotropic point x-ray source and a spherically curved crystal. The x-ray beam intensity is modulated by the object attenuation, then monochromatized and enlarged using a...

  • Wölter x-ray microscope characterization measurements on Nova. Remington, B. A.; Glendinning, S. G.; Wallace, R. J.; Rothman, S.; Morales, R. // Review of Scientific Instruments;Oct92, Vol. 63 Issue 10, p5080 

    We have made in situ measurements of the spatial resolution function for two sectors of the 22X magnification Wölter x-ray microscope. Our experimental technique using backlit grid shots on the Nova laser and our method of analysis are described.

  • Phase contrast hard x-ray microscopy with submicron resolution. Lagomarsino, S.; Cedola, A. // Applied Physics Letters;11/3/1997, Vol. 71 Issue 18, p2557 

    Presents a X-ray phase contrast microscope based on the divergent and coherent beam exiting an X-ray waveguide. Application of lensless geometrical projection; Determination of nylon fiber and gold test pattern images; Magnitude of exposure time required for a visible contrast.

  • Description of an x-ray microscope with 30 nm resolution Medenwaldt, Robin; Uggerhoj, Erik // Review of Scientific Instruments;Aug1998, Vol. 69 Issue 8, p2974 

    Presents an x-ray microscope (XM) with a 30 nanometer resolution. Optical setup of the full-field imaging XM; Performance of the x-ray micrograph; Variables hindering the construction of the XM.

  • X-ray microscopy with synchrotron radiation. Jacobsen, Chris; Kirz, Janos // Nature Structural Biology;Aug2002 Supplement, Vol. 5, p650 

    X-ray microscopes, using synchrotron radiation sources, are allowing high resolution studies into the structure and chemistry of whole hydrated single cells.

  • X-rays for cells. Pope, Greg; Dane, Abe // Popular Mechanics;Aug93, Vol. 170 Issue 8, p18 

    Reports on an x-ray microscope invented at the National Aeronautics and Space Administration's (NASA) Marshall Space Flight Center. Ability to image carbon-based structures inside living cells.

  • Large-field high-resolution x-ray microscope for studying laser plasmas. Sauneuf, Richard; Dalmasso, Jean-Michael; Jalinaud, Thierry; Le Breton, Jean-Pierre; Schirmann, Daniel; Marioge, Jean-Paul; Bridou, Francois; Tissot, Gerard; Clotaire, Jean-Yves // Review of Scientific Instruments;Sep97, Vol. 68 Issue 9, p3412 

    Describes a large-field high-resolution x-ray microscope for studying laser plasmas. Image of fine metallic grids; Field obliquity; Aperture of the optical system; Conception of the KBA microscope; Reduction of field obliquity; Field influence in a bimirror; Assembling and adjustment principles.

  • A transmission x-ray microscope based on secondary-electron imaging. Watts, R.N.; Liang, S.; Levine, Z.H.; Lucatorto, T.B.; Polack, F.; Scheinfein, M.R. // Review of Scientific Instruments;Sep97, Vol. 68 Issue 9, p3464 

    Presents the design for a transmission x-ray microscope with 20 nm transverse spatial resolution. Analysis of the microscope's electron-optical performance based on the evaluation of Gaussian focusing properties; Electron optical properties of the microscope; Preliminary experimental results...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics