CN102565867B

CN102565867B - System for inspection through rays

Info

Publication number: CN102565867B
Application number: CN201010620367.5A
Authority: CN
Inventors: 赵自然; 陈志强; 吴万龙; 丁光伟; 唐乐; 曹硕; 金颖康; 王海林
Original assignee: Tsinghua University; Nuctech Co Ltd
Current assignee: Tsinghua University; Nuctech Co Ltd
Priority date: 2010-12-31
Filing date: 2010-12-31
Publication date: 2014-03-12
Anticipated expiration: 2030-12-31
Also published as: HK1172095A1; CN103712997A; CN103712997B; CN102565867A

Abstract

The invention relates to a system for inspection through rays. The system comprises a ray beam forming device, a detector for receiving the rays and a linkage rod, wherein the ray beam forming device is used for forming a ray beam; and the first end part of the linkage rod is rotatably connected with the detector, and the second end part which is opposite to the first end part of the linkage rod is connected with the ray beam forming device to enable the linkage rod to rotate together with the ray beam forming device. The system disclosed by the invention can effectively reduce the cost; as the detector and the ray beam forming device are synchronized through the linkage rod, the stability of operation of the system is improved and accurate scanning is ensured. In addition, the scanning speed is convenient to change, and the scanning speed can be conveniently adjusted by only changing the rotational speed of a motor for driving a screw rod.

Description

For the system checking by ray

Technical field

The present invention relates to a kind of system for checking by ray.

Background technology

The beam of existing radiological survey X system forms device and detector is driven by motor respectively, and relative scanning object moves up and down.

Summary of the invention

The object of this invention is to provide a kind of system for checking by ray, this system architecture is simple and stability is high.

According to an aspect of the present invention, the invention provides a kind of system for checking by ray, this system comprises: beam forms device, and this beam forms device and forms a branch of beam; For receiving the detector of ray; And gangbar, the first end of described gangbar is connected rotationally with detector, and the second end relative with first end of described gangbar forms device with beam and is connected, and gangbar is rotated together with beam formation device.

System of the present invention can reduce costs, and because detector forms between device and is connected by mechanism with beam, has therefore greatly improved the stability of system operation, guarantees that scanning accurately

Accompanying drawing explanation

Fig. 1 is according to an embodiment of the invention for the schematic isometric of the system that checks by ray.

Fig. 2 is that schematic isometric is amplified in the part of the system for checking by ray.

Fig. 3 is another schematic isometric of the system for checking by ray.

Fig. 4 to Fig. 5 is that schematic isometric is amplified in the part of the system for checking by ray.

Fig. 6 is the diagrammatic top view of the part parts of the system for checking by ray.

Fig. 7 is the schematic isometric of the part parts of the system for checking by ray.

Embodiment

Below in conjunction with the drawings and the specific embodiments, the present invention will be further described.

As shown in Fig. 1 to 7, comprise according to an embodiment of the invention for the system 100 checking by ray: beam forms device 10, this beam forms device and forms a branch of beam; For receiving the detector 50 of ray, for example ray can be through the ray of inspected object or the ray of checked property volume scattering, and ray can be also the ray of backward scattering; And gangbar 40, the first end of described gangbar 40 is connected rotationally with detector 50, and the second end relative with first end of described gangbar 40 forms device 10 with beam and is connected, and gangbar 40 is rotated together with beam formation device 10.Beam forms device 10 and comprises that radiographic source 11 and flying spot form device 13, and this system can scan for transmission scan or for backward scattering.

As shown in Figure 5, for the system 100 that checks by ray, also comprise: for making beam form the tumbler 22 that device 10 rotates, described tumbler 22 be fixedly connected with beam formation device 10 and with gangbar 40 can relative sliding and be not connected rotatably.Tumbler 22 is connected by sliding part 23 with gangbar 40.Sliding part 23 has through hole 25, and the second end of gangbar 40 is engaged in through hole 25, and the second end can slide with respect to tumbler 22 in through hole 25.Sliding part 23 can be connected with tumbler 22 by for example screw.Tumbler 22 can be substantially vertical with described gangbar, and tumbler 22 can be arranged on described beam form device 10 below.Beam forms device 10 and comprises base 20, and this base 20 is installed in rotation in frame 30, and described tumbler 22 is fixedly connected with base 20 through one end of frame 30 and tumbler 22, and tumbler 22 is fixedly connected with beam formation device 10 thus.

A branch of beam that beam forms device 10 formation can scan in plane 60.A branch of beam in the vertical direction scans object along straight line, after having scanned, beam forms device 10 and rotates preset distance, while detector 50 synchronizing movings, and beam forms device 10 in the vertical directions along with another straight line of above-mentioned straight line parallel the above-mentioned straight line preset distance of distance, object being scanned, and by repeating said process, whole object is scanned thus.Tumbler 22 can with plane 60 almost parallels.This plane 60 has identical rotation center with tumbler 22.

Detector 50 roughly moves back and forth along straight line, and drives beam formation device 10 synchronously to rotate by gangbar 40.As shown in Figure 2, the first end of gangbar 40 has cover 42, and this cover 42 is connected rotationally with the axle 51 on detector 50.System of the present invention also comprises: guide rail 45, and the guide 47 being slidably matched with guide rail 45, guide 47 is fixedly connected with detector 50.Thus, guiding detector 50 roughly moves back and forth along straight line.Obviously, detector 50 also can be along curve, and for example circular arc moves back and forth.As shown in Figure 2, the middle part of the first end of gangbar 40 on the vibration-direction of detector 50 is connected with detector 50.Plane 60 or beam are through the gap in the middle of detector 50.System 100 also comprises: the nut assembly 41 being connected with detector 50, and this nut assembly comprises nut; The screw rod 43 coordinating with nut assembly 41; And the driver part 78 being connected with described screw rod 43, driver part 78 can be motor etc.Screw rod 43 supports by bearing 49.By driver part 78, drive screw rod 43 rotations, nut assembly 50 moves along screw rod 34, drives thus detector 50 along guide rail 45 to-and-fro movements, drives beam to form device 10 simultaneously synchronously rotate by gangbar 40.

System of the present invention can effectively reduce costs, and because detector and beam form device, by gangbar, synchronizes, and has therefore improved the stability of system operation, guarantees that scanning accurately.In addition, change sweep velocity conveniently, only need change to drive the rotating speed of the driver part such as motor of screw rod just can adjust easily sweep velocity.

Although described by reference to the accompanying drawings embodiments of the invention, in the situation that not deviating from inventive concept of the present invention, can modify to above-described embodiment.

Claims

1. the system for checking by ray, comprising:

Beam forms device, and this beam forms device and forms a branch of beam, and described beam forms device and comprises that radiographic source and flying spot form device;

For receiving the detector of ray;

Gangbar, the first end of described gangbar is connected rotationally with detector, and the second end relative with first end of described gangbar forms device with beam and is connected, and gangbar is rotated together with beam formation device, and

For making beam form the tumbler that device rotates, described tumbler be fixedly connected with beam formation device and with gangbar can relative sliding and be not connected rotatably,

Described detector is roughly along straight reciprocating motion, and by gangbar, drives beam to form device synchronously to rotate.

2. the system for checking by ray according to claim 1, wherein:

Described tumbler is connected by sliding part with gangbar.

3. the system for checking by ray according to claim 1, wherein:

A branch of beam that described beam forms device formation can scan in plane; And

Described tumbler and described plane almost parallel.

4. the system for checking by ray according to claim 3, wherein:

Described tumbler is substantially vertical with described gangbar.

5. the system for checking by ray according to claim 4, wherein:

Described tumbler be arranged on described beam form device below.

6. the system for checking by ray according to claim 1, wherein:

The middle part of the first end of described gangbar on the vibration-direction of detector is connected with detector.

7. the system for checking by ray according to claim 6, also comprises:

The nut assembly being connected with described detector;

The screw rod coordinating with nut assembly; And

The driver part being connected with described screw rod.

8. the system for checking by ray according to claim 3, wherein:

Described plane is through the middle part of described detector.

9. the system for checking by ray according to claim 1, wherein:

Described beam forms device and comprises base, and this base is installed in rotation in frame, and described tumbler is fixedly connected with base through one end of frame and tumbler.