Morpho Detection, Inc.

Ge Homeland Protection, Inc.

Helmut Rudolf Strecker

Geoffrey Harding

Armin Uwe Schmiegel

Dirk Kosciesza

Stephan Olesinski

Peter Michael Edic

Bruno K B De Man

Jeffrey Seymour Gordon

Johannes Paul Delfs

Gabriel Zienert

A method to account for cross-talk among a plurality of coherent scatter detectors of a multi-detector inverse fan beam x-ray diffraction imaging (MD-IFB XDI) system. The MD-IFB XDI system includes a multi-focus x-ray source (MFXS) that emits radiation sequentially from a plurality of focus points denoted by F, F, . . . Fwith a running index i. The method includes measuring a diffraction profile Xfor each coherent scatter detector Dof the plurality of coherent scatter detectors. The diffraction profile includes a spectrum of a number of photons measured in a plurality of corresponding coherent scatter detectors. Each coherent scatter detector Dis corrected to remove scatter from a plurality of primary beams directed to remaining coherent scatter detectors of the plurality of coherent scatter detectors.

System and method to account for cross-talk among coherent scatter detectors

An x-ray diffraction imaging device includes at least one x-ray detector and at least one scatter collimator positioned upstream of the at least one x-ray detector. The at least one collimator includes a plurality of successive plates. Each of the plurality of plates defines a plurality of rectangular holes. The plurality of successive plates are arranged such that the plurality of rectangular holes define a plurality of quadrilateral passages extending through the at least one scatter collimator. Each of the plurality of quadrilateral passages is configured to increase a rate of detection of first x-rays that define an x-ray transit path enclosed within a single such quadrilateral passage. Also, the plurality of quadrilateral passages is configured to decrease a rate of detection of second x-rays that define an x-ray transit path that intersects more than one such quadrilateral passage.

X-ray diffraction device, object imaging system, and method for operating a security system

The invention relates to a method of examining an item of luggage, in which an X-ray fluoroscopic image of the whole item of luggageis produced first, then planiform suspect regionsin the X-ray fluoroscopic image are determined and the scanning time during the following production of an X-ray diffraction image depends on whether the X-ray beam is located specifically in a planiform suspect region, wherein the scanning time heads towards zero outside a planiform suspect regionand lasts long enough inside a planiform suspect regionto obtain an informative X-ray diffraction image.

Methods of examining an item of luggage by means of an x-ray diffraction method

A primary collimator for a multiple inverse fan beam x-ray diffraction imaging (MIFB XDI) system. The MIFB XDI system includes a multi-focus x-ray source (MFXS) defining a plurality of focus points arranged along a length of the MFXS. Each focus point is sequentially activated to emit an x-ray fan beam including a plurality of primary beams each directed to a corresponding convergence point. The primary collimator includes a first diaphragm configured to be positioned with respect to the MFXS. The first diaphragm defines a plurality of first channels through a thickness of the first diaphragm. Each first channel is aligned with a corresponding focus point and configured to transmit the x-ray fan beam. A second diaphragm is positioned with respect to the first diaphragm and defines a plurality of second channels through a thickness of the second diaphragm. Each second channel is axially aligned with a corresponding first channel.

Primary collimator and systems for x-ray diffraction imaging, and method for fabricating a primary collimator

A system and method for scanning objects using a non-translational x-ray diffraction (XRD) system is disclosed. The system includes a scanning area through which an object to be scanned traverses and a distributed x-ray source having a plurality of focal spot locations. The distributed x-ray source is affixed on the scanning area and is configured to emit x-rays towards the object as a series of parallel x-ray beams. A stationary detector arrangement is affixed on another side of the scanning area generally opposite the distributed x-ray source and is configured to measure a coherent scatter spectra of the x-rays after passing through the object. A data acquisition system (DAS) is connected to the detector arrangement and is configured to measure the coherent scatter spectra, which is utilized to generate XRD data and determine a material composition of at least a portion of the object from the XRD data.

X-ray source and detector configuration for a non-translational x-ray diffraction system

A method for determining a change in position of an item of luggage, examined by a first examination system, in order to thereafter examine only a suspect region of the item of luggage in a secondary examination system.

Method for inspecting luggage

A secondary collimator for an X-ray scattering device with horizontal plates and vertical plates arranged perpendicular thereto, the vertical plates being arranged parallel to one another and being inclined by a pre-determinable scattering angle to a transmission direction of an X-ray beam, and the horizontal plates being aligned fan-shaped onto a single point, namely to the X-ray source, and the horizontal plates with the vertical plates forming a rectangular grid with the vertical plates and being combined to form a collimator unit. Moreover, the invention relates to an X-ray scattering device for baggage check with an X-ray source, with a primary collimator which only lets through a fan beam, with a secondary collimator for projecting an area of an item of luggage and with a scattering detector, the secondary collimator being arranged between the item of luggage to be examined and the scattering detector and being developed as mentioned above.

Secondary collimator for an X-ray scattering device and X-ray scattering device

The invention relates to a method for determining the change in position of an item of luggage in order to examine a suspect region in this item of luggage.

Growing community of inventors

Hamburg, Germany

Helmut Rudolf Strecker