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Beamline Updates

  • Detector installation Image

    Beamline Update: Detector installation

    Posted on October 16, 2015
    The final major component of the endstation, the detector array, is now installed.  Four silicon drift detectors are positioned 30 mm from the sample with a specific geometry that will provide multiple perspectives and optimize contrast.  3D printed caps are positioned over the detectors to prevent damage, reduce scattering background and hold thin film filters.

  • Fly wing measurements Image

    Beamline Update: Fly wing measurements

    Posted on September 17, 2015
    Test measurements were made of a fly wing.  Images of a 2 x 2 mm field of view were acquired at a resolution of approximately 20 microns.  The lower image shows x-ray transmission and the upper image shows carbon fluorescence.  An x-ray energy of 290 eV was used in the acquisition.

  • First images Image

    Beamline Update: First images

    Posted on August 13, 2015
    The first x-ray images have been acquired on the SGM.  The test samples were a 0-80 nut and a gold mesh with a wire pitch of 20 microns.  A photon energy of 711 eV (Fe L-edge) was used and the total electron yield from the sample was used to generate the contrast in the images.  

  • Focused beam on SGM Image

    Beamline Update: Focused beam on SGM

    Posted on July 30, 2015
    The KB mirrors have been successfully used to focus the beam to approximately 30 x 20 microns.  Optimization of the transmission and the beam demagnification will continue.

  • KB mirrors installed Image

    Beamline Update: KB mirrors installed

    Posted on June 23, 2015
    The two 150 mm long trapezoidal focussing mirrors were successfully installed on July 23rd.  Bending motors and encoders have been tested.

  • KB bender installation and testing Image

    Beamline Update: KB bender installation and testing

    Posted on June 14, 2015
    Testing of the KB mirror bender mechanism and motors is underway.  This system is 375 mm upstream from the sample and will focus the beam to 10 by 10 microns.

  • The new XAS sample holders Image

    Beamline Update: The new XAS sample holders

    Posted on May 15, 2015
    The ambient pressure endstation sample holders have been prototyped.  This particular sample holder will accommodate 22 samples and was designed for soils and sediments.

  • Hexapod installed Image

    Beamline Update: Hexapod installed

    Posted on May 12, 2015
    The vacuum compatible hexapod sample positioner has been installed and tested in the ambient pressure endstation.

  • Construction begins Image

    Beamline Update: Construction begins

    Posted on May 09, 2015
    Most of the parts have arrived and the construction of the new ambient pressure endstation has begun.