X-ray scintillator optical imaging system
An optical imaging system and scintillator technology, applied in optics, optical components, X/γ/cosmic radiation measurement, etc., can solve the problems of enhancement, fiber cone distortion, etc., to avoid damage, improve microscopic resolution, and avoid false shadow effect
Inactive Publication Date: 2011-11-16
SOUTHEAST UNIV
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[0021] In order to describe the technical solution of the above invention in more detail, specific examples are listed below to illustrate the technical effect. It should be emphasized that these examples are used to illustrate the present invention and not to limit the scope of the present invention.
[0022] The invention provides an X-ray scintillator optical imaging system. The system uses X-rays with photon energy in the range of 20-70 kiloelectron volts, and through dynamic replacement of different objective lens systems, the resolution of the system can reach more than 1 micron. In addition, the detector's optical turning mirror device and very thin single crystal scintillator device make the optical imaging system a high-energy X-ray filter, and the aluminum film design in front of the scintillator can effectively filter out lower-energy X-rays , which turns the system into an X-ray band-pass filter, which can effectively filter out low-energy rays that produce total ...
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Abstract
The invention discloses an X-ray scintillator optical imaging system, which converts an X-ray into a visible light and images on a charge coupler detector (21). The X-ray scintillator optical imaging system is characterized by comprising a point source (10), a scintillator (15), an object carrying table (22), a visible light reflecting coating (12), an optical glass substrate (16) and a microscope objective (17), wherein the point source (10) provides the X-ray; the object carrying table (22) is arranged between the point source (10) and the scintillator (15) and has four degrees of freedom of rotation, up-down translation, left-right translation and front-back translation; the visible light reflecting coating (12) is coated on one face, opposite to the object carrying table, of the scintillator (15); the optical glass substrate (16) is connected with the scintillator (15); and the microscope objective (17) is connected with the optical glass substrate (16). The invention has the advantages that: the X-ray scintillator optical imaging system is more compact and can effectively avoid damage of the X-ray to a charge coupler; a tube mirror focuses parallel rays on a sensing surface of the charge coupler; and conversion of the microscope objective is realized by a microscope objective conversion device to obtain different magnification factors.
Description
technical field [0001] The present invention relates to an X-ray scintillator optical imaging system, and more specifically relates to converting X-rays into visible light through a cerium-activated yttrium aluminum garnet single crystal, and the visible light enters the optical path system of the objective lens, steering mirror, and tube mirror for magnification and imaging, and the final imaging On the sensing face of a charge-coupled device (CCD). [0002] Background technique [0003] X-ray imaging plays an important role in everyday life, from the application of medical X-ray imaging to airport security devices, X-ray imaging detectors play an important role. Detectors in X-ray imaging systems can generally be divided into two categories: chemical-based detectors, such as film, and electronic detectors, such as charge-coupled devices (CCDs) or imaging plates. [0004] Detectors based on chemical methods are conventional X-ray imaging detectors. Chemical detectors we...
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IPC IPC(8): G01T1/202G01T1/24G01N23/083A61B6/00G02B21/36G02B17/06
Inventor 顾宁李光罗守华
Owner SOUTHEAST UNIV