Patents by Inventor Marinus Willem Dirken

Marinus Willem Dirken has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 6393093
    Abstract: The invention relates to a device for X-ray analysis with energy dispersive detection of fluorescent radiation. In order to enable the measurements to be carried out with a suitable position resolution, the analyzing radiation is conducted to the sample (4) by means of an X-ray conducting capillary (6) which is directed to the sample through the detector surface (14). Practically all fluorescent radiation (30) from the sample can be detected in such arrangement. According to the invention a detector is used in the form of an X-ray-sensitive CCD array (12). Such a CCD array provides a better energy resolution in comparison with conventional EDX detectors. Moreover, for such CCD arrays a large amount of sophisticated software is available for reading out; moreover, such CCDs can be readily purchased, for example, as rejected visible light sensitive arrays in which a small number of pixels have dropped out.
    Type: Grant
    Filed: December 21, 2000
    Date of Patent: May 21, 2002
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Johannes Cornelis Jans, Marinus Willem Dirken, Waltherus Wilhelmus Van Den Hoogenhof
  • Publication number: 20010014136
    Abstract: The invention relates to a device for X-ray analysis with energy dispersive detection of fluorescent radiation. In order to enable the measurements to be carried out with a suitable position resolution, the analyzing radiation is conducted to the sample (4) by means of an X-ray conducting capillary (6) which is directed to the sample through the detector surface (14). Practically all fluorescent radiation (30) from the sample can be detected in such arrangement. According to the invention a detector is used in the form of an X-ray-sensitive CCD array (12). Such a CCD array provides a better energy resolution in comparison with conventional EDX detectors. Moreover, for such CCD arrays a large amount of sophisticated software is available for reading out; moreover, such CCDs can be readily purchased, for example, as rejected visible light sensitive arrays in which a small number of pixels have dropped out.
    Type: Application
    Filed: December 21, 2000
    Publication date: August 16, 2001
    Inventors: Johannes Cornelis Jans, Marinus Willem Dirken, Waltherus Wilhelmus Van Den Hoogenhof