Rear collimator and scanning imaging equipment
A technology of scanning imaging equipment and collimators, which is applied in the direction of instruments, scientific instruments, measuring devices, etc., and can solve the problems of difficulty, high cost, and poor precision of rear collimators
Pending Publication Date: 2018-03-13
NUCTECH CO LTD +1
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Problems solved by technology
However, the overall processing and manufacturing of the post-collimator with integral molding structure is difficult, poor in precision and high in cost.
Method used
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[0027] Embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings and examples. The detailed description and drawings of the following embodiments are used to illustrate the principle of the present invention, but not to limit the scope of the present invention, that is, the present invention is not limited to the described embodiments.
[0028] In the description of the present invention, it should be noted that unless otherwise specified, the meaning of "plurality" is two or more; the terms "upper", "lower", "left", "right", "inner ", "outside" and other indicated orientations or positional relationships are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation of the in...
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The invention relates to a rear collimator and scanning imaging equipment. The rear collimator comprises a shading casing and a light guide assembly, wherein the shading casing comprises a first end plate and a second end plate which are oppositely arranged in a spaced manner; first light transmittance holes are formed in the first end plate; second light transmittance holes are formed in the second end plate; the light guide assembly is arranged in the shading casing and is detachably connected with the shading casing; the light guide assembly comprises light guide through holes; the first light transmittance holes, the light guide through holes and the second light transmittance holes are aligned with one another in a direction from the first end plate to the second end plate, so that external rays can pass through the first light transmittance holes, the light guide through holes and the second light transmittance holes in sequence. The rear collimator disclosed by the embodiment ofthe invention is of a split structure; the shading casing and the light guide assembly can be independently manufactured, and then are assembled, so that the overall machining difficulty and the machining cost of the rear collimator are reduced, and the precision of the rear collimator can be guaranteed.
Description
technical field [0001] The invention relates to the technical field of detection equipment, in particular to a rear collimator and scanning imaging equipment. Background technique [0002] Scanning imaging equipment has the advantage of being able to detect the inside of an object without touching the object, and will not cause physical damage to the object to be detected, so it is widely used in industrial production or object scanning in daily life. Scanning imaging devices typically have a detection module. The detection module includes a rear collimator. [0003] The rear collimator is placed between the measured object and the detector. The radiation emitted by the radioactive source passes through the front collimator and then reaches the detection part in the object to be measured. After being scattered by the detection site, the rays pass through the rear collimator and are received by the detector. Since the ray channel in the rear collimator points to a specifi...
Claims
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Login to View More IPC IPC(8): G01N23/207
CPCG01N23/207G01N2223/316G01N2223/05
Inventor 张龙张丽洪明志梁晋宁
Owner NUCTECH CO LTD