Ray irradiating rig and safety detection equipment

A technology of ray irradiation and radiation, which is applied in the field of nuclear technology applications, can solve the problems of shutter opening and closing speed, inaccurate positioning, and large shutter size, so as to reduce the difficulty of radiation protection, reduce the dose of radiation, and reduce the size of the opening Effect

Pending Publication Date: 2017-12-26
TSINGHUA UNIV
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  • Abstract
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AI Technical Summary

Problems solved by technology

However, due to the heavy shutter structure, the opening and closing speed of the shutter is slow, and the impact force is large, the opening time is long, and the positioning is not accurate, resulting in a large radiation dose required for detection and a large shutter size.

Method used

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  • Ray irradiating rig and safety detection equipment

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Embodiment Construction

[0012] Features and exemplary embodiments of various aspects of the invention will be described in detail below. In the following detailed description, numerous specific details are set forth and illustrated in order to provide a thorough understanding of the present invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced without some of these specific details. The following description of the embodiments is only to provide a better understanding of the present invention by describing examples of the present invention. The present invention is not limited to any specific configuration presented below, but covers any modification, substitution and improvement made to the structures and components of the present invention without departing from the spirit of the present invention. In the drawings and the following description, known structures and technologies are not shown to avoid unnecessary confusion for understanding t...

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Abstract

The invention discloses a ray irradiation rig and safety detection equipment. The ray irradiating rid comprises a ray source, a shielding shell, a grating ruler and a control unit; the ray source is used for providing rays; the shielding shell is used for accommodating a cavity for the ray source and an opening communicated with the cavity to enable the ray to be irradiated outwards through the opening; the grating ruler is used for acquiring position information of the ray source; the control unit is used for controlling the ray source to move from a first position or a second position; the first position is where the ray is irradiated outwards through the opening; the second position is where the ray cannot be irradiated outwards through the opening. By the arrangement, the ray with high frequency can be irrigated, impact produced by irradiating of the ray on the shielding shell can be reduced, irradiating dose is reduced, and meanwhile, irradiation protection difficulty is lowered.

Description

technical field [0001] The invention relates to the application field of nuclear technology, in particular to a radiation irradiation device and safety detection equipment. Background technique [0002] At present, radiation safety detection equipment has been widely used in stations, subways, airports, customs, ports, nuclear power plants, government agencies, postal inspection centers, courts, meeting places, etc., through the radiation passing through the object to be tested, the detector set on the other side The signal is collected to obtain the attenuation intensity of the ray after penetrating different substances, so as to distinguish the density of the detected object and obtain different grayscale images, so as to perform safety inspection on the object or vehicle. [0003] A double-projection radiation imaging detection technology for large trucks and containers is known, wherein isotopes are set as radiation sources. The radiation source is usually placed in a h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01V5/00
CPCG01V5/0016
Inventor 张颜民裘伟东黄毅斌丛鹏向新程童建民
Owner TSINGHUA UNIV
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