CN102565867A

CN102565867A - System for inspection through rays

Info

Publication number: CN102565867A
Application number: CN2010106203675A
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: 2012-07-11
Anticipated expiration: 2030-12-31
Also published as: CN102565867B; CN103712997B; HK1172095A1; CN103712997A

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

Be used for the system that checks through ray

Technical field

The present invention relates to a kind of system of checking through ray of being used for.

Background technology

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

Summary of the invention

The purpose of this invention is to provide a kind of system of checking through ray of being used for, this system architecture is simple and stability is high.

According to an aspect of the present invention, the invention provides a kind of system of checking through ray of being used for, this system comprises: beam forms device, and this beam forms device and forms a branch of beam; Be used to receive the detector of ray; And gangbar, the first end of said gangbar is connected with detector rotationally, and being connected with first end opposite second end and beam formation device of said gangbar makes gangbar form device with beam and rotates.

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

Description of drawings

Fig. 1 is the schematic isometric of the system that is used for according to an embodiment of the invention checking through ray.

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

Fig. 3 is another schematic isometric of the system that is used for checking through ray.

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

Fig. 6 is the diagrammatic top view of the part parts of the system that is used for checking through ray.

Fig. 7 is the schematic isometric of the part parts of the system that is used for checking through ray.

Embodiment

Below in conjunction with accompanying drawing and embodiment the present invention is further specified.

Shown in Fig. 1 to 7, the system 100 that is used for according to an embodiment of the invention checking through ray comprises: beam forms device 10, and this beam forms device and forms a branch of beam; Be used to receive the detector 50 of ray, for example ray can be to pass the ray of inspected object or the ray of checked property volume scattering, and ray also can be the ray of backward scattering; And gangbar 40, the first end of said gangbar 40 is connected with detector 50 rotationally, and being connected with first end opposite second end and beam formation device 10 of said gangbar 40 makes gangbar 40 form device 10 with beam and rotates.Beam forms device 10 and comprises that radiographic source 11 and flying spot form device 13, and this system can be used for transmission scan or be used for backward scattering scanning.

As shown in Figure 5; The system 100 that is used for checking through ray also comprises: be used to make beam to form the tumbler 22 that device 10 rotates, said tumbler 22 can slide relatively with 10 fixed connections of beam formation device and with gangbar 40 and can not be connected with relatively rotating.Tumbler 22 is connected through sliding part 23 with gangbar 40.Sliding part 23 has through hole 25, and the second end of gangbar 40 is engaged in the through hole 25, and the second end can slide in through hole 25 with respect to tumbler 22.Sliding part 23 can be connected with tumbler 22 through for example screw.Tumbler 22 can with said gangbar approximate vertical, and tumbler 22 can be arranged on said beam form device 10 below.Beam forms device 10 and comprises base 20, and this base 20 is installed in rotation on the frame 30, and the end that said tumbler 22 passes frame 30 and tumbler 22 is fixedly connected with base 20, 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 scanning is accomplished; Beam forms device 10 and rotates preset distance; Detector 50 same moved further, and beam simultaneously form device 10 in the vertical direction edges and also apart from another straight line of above-mentioned straight line preset distance object are scanned with above-mentioned straight line parallel, through repeating said process whole object are 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 rotates synchronously through gangbar 40 drive beams formation devices 10.As shown in Figure 2, the first end of gangbar 40 has cover 42, and spools 51 on this cover 42 and the detector 50 is connected rotationally.System of the present invention also comprises: guide rail 45, and the guide 47 that is slidingly 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 pass the gap in the middle of the detector 50.System 100 also comprises: the nut assembly 41 that is connected with detector 50, and this nut assembly comprises nut; The screw rod 43 that cooperates with nut assembly 41; And the driver part 78 that is connected with said screw rod 43, driver part 78 can be a motor etc.Screw rod 43 supports through bearing 49.Drive screw rod 43 rotations through driver part 78, nut assembly 50 moves along screw rod 34, drives detector 50 thus along guide rail 45 to-and-fro movements, drives beam formation device 10 through gangbar 40 simultaneously and rotates synchronously.

System of the present invention can effectively reduce cost, because detector and beam formation device are synchronous through gangbar, has therefore improved the stability of system's operation, guarantees to scan accurately.In addition, it is convenient to change sweep velocity, and the rotating speed such as the driver part of motor that only needs change to drive screw rod just can be adjusted sweep velocity easily.

Although described embodiments of the invention, under the situation that does not deviate from inventive concept of the present invention, can make amendment to the foregoing description in conjunction with accompanying drawing.

Claims

1. one kind is used for the system that checks through ray, comprising:

Beam forms device, and this beam forms device and forms a branch of beam;

Be used to receive the detector of ray; And

Gangbar, the first end of said gangbar is connected with detector rotationally, and being connected with first end opposite second end and beam formation device of said gangbar makes gangbar form device with beam and rotates.

2. the system that checks through ray of being used for according to claim 1 also comprises:

Be used to make beam to form the tumbler that device rotates, said tumbler can slide relatively with beam formation device fixed connection and with gangbar and can not be connected with relatively rotating.

3. the system that checks through ray of being used for according to claim 1, wherein:

Said tumbler is connected through sliding part with gangbar.

4. the system that checks through ray of being used for according to claim 2, wherein:

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

Said tumbler and said plane almost parallel.

5. the system that checks through ray of being used for according to claim 4, wherein:

Said tumbler and said gangbar approximate vertical.

6. the system that checks through ray of being used for according to claim 5, wherein:

Said tumbler be arranged on said beam form device below.

7. the system that checks through ray of being used for according to claim 1, wherein:

Said detector is roughly along straight reciprocating motion, and drives beam through gangbar and form device and rotate synchronously.

8. the system that checks through ray of being used for according to claim 7, wherein:

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

9. the system that checks through ray of being used for according to claim 8 also comprises:

The nut assembly that is connected with said detector;

The screw rod that cooperates with nut assembly; And

The driver part that is connected with said screw rod.

10. the system that checks through ray of being used for according to claim 4, wherein:

The middle part of said detector is passed on said plane.

11. the system that checks through ray of being used for according to claim 2, wherein:

Said beam forms device and comprises base, and this base is installed in rotation on the frame, and the end that said tumbler passes frame and tumbler is fixedly connected with base.