Coherent scatter imaging

A coherent scattering and imaging system technology, applied in radiation measurement, nuclear radiation exploration, X/γ/cosmic radiation measurement, etc., can solve problems such as difficult to judge absorption features, unable to provide identification, etc.
CN101014882AInactive Publication Date: 2007-08-08KONINKLIJKE PHILIPS ELECTRONICS NV
3 Cites 3 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
KONINKLIJKE PHILIPS ELECTRONICS NV
Publication Date
2007-08-08
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

A region of interest is identified using a conventional CT or X-ray approach. Then, the region of interest is scanned using a plurality of pencil beams (28) to obtain a plurality of different scattered X-ray spectra. A geometric correction is then applied to each spectrum as if the spectrum was solely due to features in the region of interest. The various spectra recorded using the beams are combined and correlated to determine features of the region of interest (32) whilst minimising the effect of features in the rest of the sample (30).
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The present invention relates to apparatus and methods for coherent scatter imaging, in particular, but not limited to apparatus and methods for coherent scatter computed tomography. Background technique

[0002] There is a continuing need for fast, reliable material scanners. One specific space of commercial interest is the rapid baggage scanner, which can be used in a variety of situations, but is often used to scan airline baggage. Another specific area of ​​commercial interest is in the area of ​​medical scanners.

[0003] For example, the interaction of X-ray photons with matter in a certain energy range between 20 and 150 keV can be described by photoelectric absorption and scattering. There are two different types of scattering: on the one hand incoherent or Compton scattering and on the other hand coherent or Rayleigh scattering. However, Compton scattering varies slowly with angle, while Rayleigh scattering is strongly forward and has disti...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More