X-ray imaging device with fast spatial modulation of photon flux
An imaging equipment, X-ray technology, applied in X-ray equipment, material analysis using wave/particle radiation, measuring devices, etc., can solve time-consuming problems
Inactive Publication Date: 2017-12-19
KONINKLJIJKE PHILIPS NV
View PDF4 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
However, rearranging the liquid within the filter element is usually time consuming and only suitable for low frequency image acquisition
Method used
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
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0058] Without limiting the scope of the present invention in any way, the principles underlying the embodiments of the present invention can be understood as based on the following ideas and realizations:
[0059] In the proposed X-ray imaging device, the controllable transmission arrangement comprises at least two units such as an X-ray phase modifying unit and an X-ray absorbing unit, the X-ray phase modifying unit comprising a periodic At least one subunit of a periodic structure, the X-ray absorbing unit includes at least one subunit of a periodic structure that matches an interference pattern and attenuates X-radiation. In an embodiment, each of the two units may comprise a grating, wherein the grating is arranged continuously in the path of the X-ray beam and may be used to arrive at a body part in which it is arranged, for example a patient. The local flux of X-ray photons emitted by the X-ray source is controllably attenuated before viewing the volume. Here, the grat...
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 PUM
Login to View More Abstract
An X-ray imaging device (1) and a method for operating such a device are presented. In an embodiment, the device (1) comprises: an X-ray source (5); an arrangement (12) of a first (13), second (15) and third (17) grating; an X-ray detector (7); and the control device (21). The first, second and third gratings (13, 15, 17) are arranged in the beam path (9) of the X-rays in the region upstream of the observation volume (3). At least one of said second grating (15) and said third grating (17) comprises a plurality of sub-gratings (37), wherein each of said sub-gratings comprises a manipulation tool (39), said manipulation means for displacing the sub-grating with respect to the other of the second and third gratings. The control device (21) is adapted to control the handling means (39). Thus, the sub-gratings can be positioned such that the intensity maxima of the interference pattern generated after transmission of X-rays through said second grating (15) are arranged such as with strong X-ray absorption of said third grating (17) The parts are consistent, or are consistent with the weak X-ray absorption part in the third grating (17). Thus, the transmission of X-rays through the arrangement (12) can be locally adjusted by specifically positioning each of the sub-gratings.
Description
technical field [0001] The invention relates to an X-ray imaging device and a method of operating such an X-ray imaging device. Background technique [0002] X-ray imaging is commonly used to obtain information about the internal structure of an object of interest. An X-ray imaging device comprises an X-ray source and an X-ray detector arranged on opposite sides of an observation volume in which an object of interest may be arranged during X-ray imaging. X-rays from an X-ray source are sent through an object. Due to the different X-ray absorption properties of various internal structures of an object, information about the internal structure can be obtained based on the local distribution of the X-ray intensities detected by the X-ray detector. [0003] In medical X-ray imaging, the object of interest is usually a region of interest (ROI) of a human or animal body. It is of general benefit to minimize the dose of X-rays applied to the body during medical imaging, since X-...
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 Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): G21K1/10H05G1/00G21K1/02
CPCG21K1/02G21K1/10H05G1/00A61B6/484G01N23/041H05G1/30
Inventor R·K·O·贝林
Owner KONINKLJIJKE PHILIPS NV