Patents Assigned to Bruker Axs GmbH
  • Patent number: 6996208
    Abstract: An X-ray optical system comprising an X-ray source (1), from which X-ray radiation (2) is guided to a sample (4) under investigation, and an X-ray detector (7) for receiving radiation (5) diffracted or scattered from the sample (4), wherein a beam-guiding X-ray optical element (3, 6), such as e.g. a collimator, a mono- or polycapillary, an X-ray mirror or a monochromator, is disposed between the source (1) and the sample (4) and/or between the sample (4) and the detector (7), is characterized in that a wobble means is provided for moving the X-ray optical element (3, 6) in an oscillating fashion during the measurement. The inventive X-ray optical system obtains averaged X-ray analysis information from objects under investigation having large mass which consist of macrocrystalline material without destroying or accelerating the object under investigation.
    Type: Grant
    Filed: March 29, 2004
    Date of Patent: February 7, 2006
    Assignee: Bruker Axs GmbH
    Inventors: Kurt Helming, Lutz BrĂ¼gemann
  • Patent number: 6896247
    Abstract: An X-ray analysis system controls the humidity of a sample. The analysis system has a device for dividing a gas flow stream into two portions and for submerging a membrane humidifier tube, containing one of the gas flows, in a water bath in which the gas passing through that tube is moisturized to a desired degree. The two gas flows are subsequently reunited at a controlled temperature to provide for combined moisturized gas at a desired temperature and humidity. The gas is then sprayed onto the sample and an excess moisturized gas vented from the chamber to maintain a moisturize gas sample without condensation of water on or near the sample. This system and a method for its use allow measurements of samples to be made as a function of humidity and temperature over wide ranges of these parameters under highly stable conditions in a straightforward manner which are not susceptible to malfunction and which can be produced and operated at low cost.
    Type: Grant
    Filed: July 18, 2002
    Date of Patent: May 24, 2005
    Assignee: Bruker Axs GmbH
    Inventors: Uwe Georg Brotzeller, Hans Leitz
  • Patent number: 6898270
    Abstract: An X-ray optical system with an X-ray source (Q) and a first graded multi-layer mirror (A), wherein the extension Qx of the X-ray source (Q) in an x direction perpendicular to the connecting line in the z direction between the X-ray source (Q) and the first graded multi-layer mirror (A) is larger than the region of acceptance (F) of the mirror (A) at a focus (Oa) of the mirror (A) in the x direction, is characterized in that a first collimator (bl) is disposed at a focus of the first graded multi-layer mirror (A) between the X-ray source (Q) and the mirror (A) whose opening in the x direction corresponds to the region of acceptance of the first graded multi-layer mirror (A) and the separation qzA between first collimator (bl) and X-ray source (Q) is: qzA=Qx/tan ?x, wherein ?x is the angle subtended by the first graded multi-layer mirror (A) in the x direction, as viewed from the first collimator (bl).
    Type: Grant
    Filed: December 9, 2002
    Date of Patent: May 24, 2005
    Assignee: Bruker Axs GmbH
    Inventors: Joachim Lange, Detlef Bahr, Kurt Erlacher
  • Patent number: 6665372
    Abstract: An X-ray diffractometer comprising an X-ray source (10) from which X-rays are guided to a sample (11) to be investigated, an X-ray detector (12) for receiving X-rays diffracted or scattered from or reflected by the sample (11), and a goniometer for adjustment of sequential relative angular positions between the X-ray source (10), the sample (11) and the X-ray detector (12) for detecting X-ray diffraction lines, X-ray scattered signals or X-ray reflectograms of the sample (11) to be investigated, wherein the X-rays can be guided at least sectionally along different optical paths, is characterized in that the X-rays can be guided from a position 1 to a position 2 along n≧2 different switchable optical paths, wherein the different optical paths are rigidly disposed relative to each other between position 1 and position 2 and form a unit (13), wherein the sample (11) assumes either position 1 or position 2 and wherein the switching over between the different optical paths can be effected by turning the unit (1
    Type: Grant
    Filed: July 26, 2002
    Date of Patent: December 16, 2003
    Assignee: Bruker Axs GmbH
    Inventors: Detlef Bahr, Norbert Kuhnmuench